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Modern Motorsports Ltd

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Modern Motorsports Ltd last won the day on September 19 2006

Modern Motorsports Ltd had the most liked content!

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About Modern Motorsports Ltd

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  1. Complete R200/R230Viscous Differential Mounting Packages! Our R230 lineup's complete!

    240zprace, as Brian noted you use 4 OEM CV axles so you get the 4 inner CV joints you need to easily build your CV's with our male male axles. The flange and axle package noted here, http://www.modern-motorsports.com/catalog/product_info.php?cPath=32_53&products_id=65 John, many thanks for the praise and compliments:) Your viewpoint and experience with these matters was key to the fact I was very pleased we could time the prototyping experience with your customers installation. Didn't expect it to generate a 3rd version of the kit as a bonus but the time was worth it! Thanks again for your inputs, little time spent now will help all from here forward.
  2. Complete R200/R230Viscous Differential Mounting Packages! Our R230 lineup's complete!

    Q45 R200 Package has been done for a while now with some great installs, at least one posted here we're aware of. The R230 final tweaks were delayed as a key prototype/vendor install got hung up by external delays beyond their control. All inputs are now in, drawings tweaked and with the fabrication shops to get the parts cranked out and shipping! All those that received the prototype parts were very pleased with the quality of the package, some great feedback and they're finalized. One main change by popular request including from John Coffey was to step up in plate thickness on the mustache bar. John's seen enough crack's in factory pieces let alone modified ones that change was easily accepted, so it'll certainly be beefier than stock and hold all in it's place:) Easier comfort to drill your own holes as you wish if need be as well for unique heights. Short summary: Q45 R200 (and other R200's similar, we don't have an exhaustive list, if you know more please email us, ie. how does the 240SX rear relate) is quite a straightforward install with comfortable room. We're going to provide one pair of mounting holes in the mustache bar that are proven working locations. If you want otherwise that's fine and you can easily drill your own set once you settle on the revised height, easily done. Z32 R230 does fit as we know and more attention to mounting location is required. Again we'll provide one pair of mounting holes so you have full option to revise to your unique build without swiss cheesing the bar. Armada R230 - quite a different animal as some have found out, it's own unique clearancing issues are presented. Unit's desirable for those seeking the 2.94 ratio. (Armada R230 is an open diff to start/requires a viscous addition by a good shop etc to get LSD with the 2.94). We will have a unique mount for the R230 front, many thanks to John Coffey for the detail differences ie. Z32 vs. Armada front and working our prototype package into his installation. Each package will include: 1)Custom mustache bar specific to Q45 R200, Z32 R230 or Armada R230 (or others as you inform us) 2)Custom rear cross brace to stiffen rear mounting assembly, allows free modification of factory brace to clear finned covers etc etc 3)Custom front differential mount specific to your diff We'll be posting more pics, full set here from an install that was at the MSA show. http://www.modern-motorsports.com/catalog/mm_gallery.php?album=2008+March+Proto+Q45+R200+Mounting+Proven+Brian+G/ Once in hand the setup will retail at right around $495 plus shipping. Prepaid/prestock orders we've been giving an early discount for first run buyers of $475 with free shipping within continental USA. Nearly a dozen on the list for priority first round shipping as they come out of powdercoat and get boxed to head out. (If you've got comments on other vendors please keep them to other vendor threads, thanks). We've been responding to email inquiries/orders on these but apologize this thread update's slipped. Just email us to place the order or go through our site where we'll get the setup listed up shortly. Beefy stub axles shipping out within a couple weeks or earlier and some unique stubs for some skylines in Oz being tooled right now. Cheers and thanks again for the support! Looking forward to seeing the new pics and especially video's and time slips from many of these new builds!
  3. 300ZXT CV Issue

    Completely agreed Jon! We're just getting a small batch of shorter shafts underway now. I'm just resecuring a spare set so we can finalize some measurements at present. For clarification (likely clarified by others) -280ZXT CV's have a shorter compressed length than the Z31 4 bolt CV's (ie. 280ZXT CV's can a greater ride height drop etc than Z31 CV's before binding) -their are 3 Z31 CV types, 6 bolt outer flange sets that are far too long for Z use, and then two variants of the 4 bolt outer flange that go with our adaptors. (visous SE with unique R200 input shafts and the typical 4 bolt non viscous Z31 R200's) The 4 bolt outer flange sets are same compressed length's and can be fully compressed/bound on a Z car that's been notably lowered. We don't have enough info to have an exact figure on this but it's always good practise to confirm your axles have travel throughout your suspension range without binding As Jon noted, in comparing axles the compressed lengths should always be used and make sure your comparision points are common amongst the measurements. I'll update on the availability of the new shorter center sections shortly. Any other questions at all please let us know.
  4. Complete R200/R230Viscous Differential Mounting Packages! Our R230 lineup's complete!

    Here's an album with the prototype parts that are out their now being installed and some of the prior prototype install shots. http://public.fotki.com/ModernMotorsportsLtd/r230v--r200v-differ/ Small hole shown in image below is for orientation during installation, located on drivers side of mustache bar. Closeup of rear cross brace connection Here's the 'early/old' install pics, new ones should be in hand by weekend. Rear mustache bar, custom polyurethane bushing with steel insert sleeve, fully captured. Eliminates factory design that allows side to side 'walking' movement. Allows for factory mounting height and 1" higher into the chassis (ie. option for lowered Z's) for both R200's and R230 (suits R230 - Z32 rear cover, with Armada simply swap Z32 rear cover on) R200V5 from Z32 NA shown in this pic. Rear cross brace support (allows full freedom to modify factory cross piece). This item may even be of interest to oldschool R200 users, greatly increases stiffness of rear mounting setup. Rearward view of Front Diff Mount. Works for both R200 and R230 (Z32 R230, should fit Armada R230, we'll know shortly). Underside of Front Diff Mount, stiff! Side shot of Front Diff Mount, for the R230 the Z32 front diff yoke is preferred. (Armada yoke very large diameter). Front view of Front Diff mount 2nd shot of Front, nearly same
  5. Complete R200/R230Viscous Differential Mounting Packages! Our R230 lineup's complete!

    Thanks for the support guys! Here's some pics but I have to say the designer's emphasis was on getting the prototypes done/powdercoated and shipped out to our early testers. So these pics are the earliest pieces, nothing jazzy and I'll be getting pics from the installs very shortly and will share those. **OK/my picture linkup didn't work, will update as soon as it's tweaked** In the meantime here's a link to a google preliminary album, http://picasaweb.google.com/modernmotorsports/R230VR200VDifferentialMountingPackagePreliminaryPics Initial tips and install guidelines already out for early use that we'll tweak from customer inputs (one customer was done his install before we knew he'd received it so can't be too challenging ). Rear mustache bar, custom polyurethane bushing with steel insert sleeve, fully captured. Eliminates factory design that allows side to side 'walking' movement. Allows for factory mounting height and 1" heigher into the chassis (ie. option for lowered Z's) for both R200's and R230 (suits R230 - Z32 rear cover, with Armada simply swap Z32 rear cover on) Rear cross brace support (allows full freedom to modify factory cross piece). This item may even be of interest to oldschool R200 users, greatly increases stiffness of rear mounting setup. Rearward view of Front Diff Mount. Works for both R200 and R230 (Z32 R230, should fit Armada R230, we'll know shortly). Underside of Front Diff Mount, stiff! Side shot of Front Diff Mount, for the R230 the Z32 front diff yoke is preferred. (Armada yoke very large diameter). Front view of Front Diff mount 2nd shot of Front, nearly same
  6. 300ZXT CV Issue

    >>I'll insert some comments below. Maybe we've received this question from you and did address but doesn't seem any direct match? So, who has swapped out their half-shafts and gone over to CVs? >>A few hundred with a hundred plus on the Z31's since Jan 2003. Before us they were proven out with a few dedicated track racers in Ontario with identical geometry. Have you experienced problems after doing so? >>Typical item is shortening your outer swaybar end link with a short high grade bolt. Always suggest verifying your suspension travel that your shafts have appropriate travel and don't see full compression in your travel range for use. >>If you've narrowed your rear or dropped it a lot you may get into bind and that would show up in typical test of your suspension. This is NOT to see if it's happy at full droop as that's not a normal condition unless you're a desert rally racer/jumper. I switched over to 300ZXT CVs using M-MSports companion flange adapter (for 280 stub axles) for my R200 (3:90 quaife) diff. The first set of CVs were aftermarket (AutoZone) and they destroyed the pinion gear due to the fact that one side (driver) had a longer shaft than was required. >>aftermarket often seems to screw up these rebuilds as they have several same spline but slightly varied length donor male sections. We quit dealing with aftermarket hiccuped axles (rebuilds) after one with a errant middle section. I'd only run original OEMs/at most update boots. The CV's are very tolerant and don't seem to justify any rebuild. 9 second 1/4's Ben cut on his used Z31 set. We should find that specific length data to help all confirm they've got a perfect length set for their install. On lowered 240Z this extra 3/8 - 1/2-inch was all it took to push the ring gear into the pinion and wear it down in under 200 miles of highway driving. >>did the axle have travel thru the suspensions functional range? I took my Z out today for the first time in 4 months (the roads here in New England still have salt on them - #@!*&^%) and I found myself paying more attention to potential diff noises and less on enjoying a ride in a real car. >>That's NO fun at all, I hate suspect noise! Have you confirmed axles are happy thru your intended suspension range? ie. still some compression available at what you'd believe to be full droop in function? (or full compression/ie. very lowered car). Did your quaife have the circlips/Clips installed to retain the CV inputs? Quaife missed those on a small shipment last year, one of our customers was affected and installed the clips on his own. Am I the only one who has had this problem? >>Tom Barnett encountered it with a very lowered car with axles pointing up and outward (vs. horizontal or out and down etc as John typically recommends). Tom informed us he had a custom set being made 7/8" shorter to keep his axles happy and we've not heard further. We could easily make custom center bars for these but have not had the request (easily done by our manufacturer) or knowledge of issues in addition to Toms. If a few sets can be justified then our usual $340 for a pair of custom bars. (no question it's a tight install but it's worked great for many combos' for some time, we're open to change always - just looking to fully undestand and ensure any change is the appropriate one) Just curious what are you guys typically paying for a set of used CV axles these days? kash, hopefully your query's answered in our response above. We ONLY proceed on what's either been proven (by ourselves or others) and/or is very well founded in sound engineering practise with our products and combinations. The other factors will always continue to change and to those we respond as best we can with our usual support and continued design over the last 7 yrs. It's the continued support of those with the same strong progressive attitudes that we so greatly appreciated in marching onward with new offerings. Some setup guru's would not drop their cars 2.5/3" etc, some do so introduces new parameters both for angularity of the CV's and shaft travel as their geometries revised. Assuming the CV's are OK with their new angularity (often ignored) range, then the shortened shafts should put them back in their happy zone. Any want some shorter centers because they're narrowing their rear or dropping their car notably (less than 1% noted any issue to date) please drop us a line. We'll gladly get you a set.
  7. the need for 33 or 35 spline stub axles....

    Stony, we've done that and made it even easier with no bearing changes! Been busy! Two new packages to announce! Even Beefier Billet Stub axles with 49% more strength than our present billet stub axles that have been so well proven! Keep your Datsun IRS while running your 700 and higher ft/lbs of torque:flamedevi Easily upgrade to massive strength while retaining your present rear brakes and suspension already optimized for your Z! Any doubt left, please test our replacement guarantee8-) 39 spline stub axles that plug and play into Z strut housings without modification and with factory bearings! http://forums.hybridz.org/showthread.php?t=132063 And now our R200V/R230V shortnose differential full mounting setups being proven in prototype and production out within 3-4 weeks time tops! http://forums.hybridz.org/showthread.php?t=132062 Thanks again to your commitment and support of our full lineup! Can't wait to see more pics and vids of these wicked builds!
  8. Broken Modern Motorsports billet stub axle

    Been busy! Two new packages to announce! Even Beefier Billet Stub axles with 49% more strength than our present billet stub axles that have been so well proven! Keep your Datsun IRS while running your 700 and higher ft/lbs of torque:flamedevi Easily upgrade to massive strength while retaining your present rear brakes and suspension already optimized for your Z! 39 spline stub axles that plug and play into Z strut housings without modification and with factory bearings! http://forums.hybridz.org/showthread.php?t=132063 And now our R200V/R230V shortnose differential full mounting setups being proven in prototype and production out within 3-4 weeks time tops! http://forums.hybridz.org/showthread.php?t=132062 Thanks again to your commitment and support of our full lineup! Can't wait to see more pics and vids of these wicked builds!
  9. OK, we've had some very impressive build owners keen on how we could upsize our present Billet Z Stub Axles that have been so well proven. Only Jody's twisted a set and that took a huge abusive effort by him and his 650whp monzter over a couple years! Well your requests have been heard, we've done it and they'll be available before end of April if not sooner! Best part! No bearing changes necessary! No costly replacement of your already renewed rear bearings and no modifications to your strut tubes required! 49 PER CENT strength gain over our present very proven billet stub axles! What we've done is completely eliminated the shaft narrowing that Datsun has on the factory shafts at the spline to inner bearing junction. Factory shafts neck down to a 1.09 inch diameter right after the 1.250 inch bearing journal. Over 130 thousands of an inch removed and this is the weak point of the stub axle. The factory 27 tooth spline is cut into the 1.09 inch diameter. Our existing billet shafts mimic this for complete interchangeability and offer great strength increase vs. OEM pieces. To achieve our great bump in strength from our own billet's we're maintaining the 1.25 straight through the spline and cutting in a 39 tooth spline! Higher spline count has a shallower cut depth and greater strength compared to a lower spline/deeper cut depth! Combined with the much greater shaft OD leads to the great strength gain. Production is underway and they'll be offered with matching 39 spline Z31(4 bolt CV) and R200V/R230V (6 bolt) companion flanges. (5 bolt R200V flanges on request with lead time) With Ben Digles cutting his sub 1.4 60's and 9 second times on the Z31 4 bolt CV's with a clutch type R200, they're certainly worthy of being retained with an R200 option for those preferring the old style Z / Z31 R200 (long nose - common). Pricing will be very close to if not same as our present product. Depends on demand and size of our production run. Planning a limited run at present that has been started. First 4 sets off the line are spoken for. Please drop us a line if you're keen for a set. We may add additional production to present machining run underway to help ensure we're not short during this entry to this years racing season. Earlybird pricing will be setup as thanks to your continued support of our lineup! Present feedback is customers are ecstatic that they can combine these on their Xtreme Z builds with our R200/R230Viscous mounting setups/axles to put their IRS Z's into new territory! Keeping you in control. Our unspoken replacement guarantee on our billet drivetrain lineup stands for this product as well, if anyone needed some additional peace of mind8-) Lastly, thanks for building such extreme and wild Z's. We love the challenge of creating packages to allow you full control and peace of mind with such wicked rides! We get pictures, stories and video's that put our hair on end and many more such personal stories are always welcome! Our site feature where you can load your car and any images/comments very easily is seldom used/we'd love to see more rides up on this area.
  10. Full Differential mounting packages for the R200 and R230 viscous shortnose differentials! You've been asking for this for a while and we're very pleased to announce 4 sets are out in prototype to some shops for quick feedback into our production run for mass offering! Including a resident site expert8-) that helped prove out our adjustable rear control arms so successfully 3 yrs ago. A full setup will have mounting options for both the R200 (Q45 and Z32) and R230 (Z32). This includes: -rear mustache bar -rear upper strut brace (notably stiffer than factory piece, beneficial for use with any Z diff!/clears finned R230 differential cover etc/will be confirmed with R200 cover shortly) -front differential mount with hardware Full setup will be powdercoated for enhanced finish/durability. This compliments and completes the R230 billet companion flange adaptors, axles and billet stub axles we've done for a few years now to go with the R200/R230 differentials our customers have custom mounted on their own. NOTE on our Billet Stub Axles: Our present stub axles have been very well proven. To boost their capability further we've got new ones in production that'll have up to 49% more capacity than our present billet stub axles! Guaranteeing peace of mind for even the wildest Z build! Great comfort builders can retain their present IRS and the brakes and suspension options that are so well proven and matched to the Z. With prototype cutting done by plasma and future production by water jet or laser we don't yet have production costs finalized So pricing will be finalized in the next couple weeks and parts available before Aprils out. (39 spline stub axles available with matching Z31 or R230 flanges within same time period!) Pics of prototype pieces to be posted shortly. First 5 sets committed already with a couple headed overseas. We'll have some earlybird offer with savings as thanks to you and your wicked builds:biggrin: that challenge us to continue with the R&D! (in the very near future we'll see a stock replacement oldstyle mustache bar for the early Z owner challenged by short supply on the used market, as well a typical R200 front mount for the oldstyle R200 to improve upon the factory piece) Thanks again to the great builds and challenges builders keep taking in stepping to yet greater heights! Unreal to see what you guys are doing with modern technology. We love the challenge to continue to put you in full control to stretch the limits once again!
  11. Does anybody know what today is?

    Cheers to the board and all the 8 yr olds around since inception and all others! Must be dog years as the boards exploded with info and expertise in it's active life to date! Special thanks to Dan for keeping the roof over our heads! (I see you got your package yesterday, enjoy the install!)
  12. Broken Modern Motorsports billet stub axle

    Jody et al, thanks for the vocal support! We'll get you hooked up again Jody:wink:. And can't have you holding back Mike, I want some video's for our all new incoming website/shop! You build that power and the rest of the car and we want to see it maximized. Got a chuckle out of me their, had lots underway some items slow right up at the vendor/design step before manufacture. Need a longer flamethrower to keep the heat on 'em! All new incoming website/webshop which will make customer experience for both information and shopping including checkout much easier. And on our back end side it'll be much easier to keep products shown current. A number of products we've been selling not on present site as it's just a dinosaur to work with, not much longer! New beefed Z stub axles, new differential mounting options in full packages plus others. Just commented on the other 33/35 spline thread on these same beefy bulletproof Z stub's in the making, "Our design was done a while back but our goto for finishing this package has been inundated with projects but finally we've got their nose to the grindstone successfully! (sorry Rick, I just didn't have the heart to say it was still parked!) If we're in agreement then it should certainly be a solution without boring required but I'll know far more next week as their design check with my own is being progressed over this weekend and early this week. We've already got a short list of site members that'll be adding these to their present Modern Motorsports drivetrain parts. Next week I'll have details confirmed but we'd expect to see them available this spring. It's truly fun seeing what you guys can crank out for power and performance from these Z's! On a similar note another of our longer term projects is nearly done. Will include a full differential mounting setup for the later R200's and R230's. We've long had the billet R200/R230 CV adaptors and replacement center axles for our customers. Now they won't have to sort their own differential mounts out. Will include full front mount, rear mustache and rear crossover. Will also include the less common later R200 with the 5lug side flanges. More info forthcoming on this (pricing will be finalized when productions costs finalized) but certainly available this spring and first few spoken for by site members including an install by a site guru. Always great to see the support."
  13. Suspension issues on my new Z

    Jake, did you get a chance to check your available travel? the gland nuts? etc? Unless doing a wholesale replacement (which many do but doesn't sound your intent at present) best to understand what you have and the problems present. Otherwise changes may not address your specific problems and they may continue. Shimmy can be any of the things you note and more. (be good to grab a Haynes or service manual etc if you don't have one already). "Would stock springs be up to the task", what's your goal? Safe grocery retrieval or wicked canyon carving/honda tossing fun? V8 builds are typically for taking it easy so builders typically want to kick most systems up in performance from what a new or old stock Z system would provide. Up front depends on your added weight/strut condition/ride height and driving style with road conditions etc if stock springs will tolerate your use. Rear similar but also more related to your torque applied on throttle for starters. The 16's you can fit but would need some manner of spacer. If coilovers were in place spacers would be quite thin if you wanted the wheels tucked inward/otherwise push them out as far as they'll clear comfortably on the fenders. Either way good to replace your wheel studs (can go stock or longer aftermarket's etc). Slip on spacers can be custom made easily or bolt on wheel adaptors. Minimum thickness for bolt on's is 3/4". Got some 3/4's being done right now for a site member, typically custom orders. Email us if you'd like to explore this or replacement suspension options (we don't deal with stock suspension parts/upgraded performance items only) Wider wheels etc can be fitted depending on your flare design and installation. Easiest to put the car up and measure very carefully/borrow some various wheels etc and see how they fit along with site research. Cheers and good luck.
  14. the need for 33 or 35 spline stub axles....

    Stony, are you building another Z or planning some changes? Sets done to date were for Z31 struts. Ben's Ozzy set was for his Gazelle (special edition 200SX we saw in the 80's), which from the factory had the Z31 R200 clutch rear and Z31 4 bolt outer flange CV's. Our design was done a while back but our goto for finishing this package has been inundated with projects but finally we've got their nose to the grindstone successfully! (sorry Rick, I just didn't have the heart to say it was still parked!) If we're in agreement then it should certainly be a solution without boring required but I'll know far more next week as their design check with my own is being progressed over this weekend and early this week. Thanks for the support S15, we've already got a short list of site members that'll be adding these to their present Modern Motorsports drivetrain parts. Next week I'll have details confirmed but we'd expect to see them available this spring. It's truly fun seeing what you guys can crank out for power and performance from these Z's! On a similar note another of our longer term projects is nearly done. Will include a full differential mounting setup for the later R200's and R230's. We've long had the billet R200/R230 CV adaptors and replacement center axles for our customers. Now they won't have to sort their own differential mounts out. Will include full front mount, rear mustache and rear crossover. Will also include the less common later R200 with the 5lug side flanges. More info forthcoming on this (pricing will be finalized when productions costs finalized) but certainly available this spring and first few spoken for by site members including an install by a site guru. Always great to see the support.
  15. Bowtiez, we've done wheelcentric wheel spacers in both slip and bolt on versions for some time to customers spec's. Typically ship in 7-10 days from purchase date. With todays common larger diameter wheels/heavier wheel/tire combo's the extra protruding lip's help maintain ideal balance. Drop us an email if you'd like more info. I'm sure others specializing in wheel adaptors do the same. Enjoy all your wheel options, always fun to get back some choices!
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