OlderThanMe

Boosted VG30/33E. Find a low mile 2wd V6 Frontier that has been rolled and pull the drivetrain out. A VG33ER would be a wicked swap IMO. Never been done to an S30 AFAIK.

I'm bringing this thread up from the dead but I wanted to put the correct info in here. Just a 175hp N/A VG33 in a heavy 2004 crewcab shortbed. The bad thing is that my Frontier is way faster than my Z was and it gets better gas mileage. The VG33E cams are actually a good bit smaller than stock Z31 cams. USDM VG33 Cams (all) 240/244 .354"/.354"" USDM VG30(Z31) 242/242 Turbo and non .385"/.385" .031" difference in lift between the two in lift but basically the same duration. Also the VG33 won't really rev higher than 6000. It is computer limited with a soft limiter yes, but it makes so little power up there that it isn't worth it to go that high. Bigger N/A cams and a low restriction intake would turn it into a beast. BRAAP always showing his ol' 440BBZ with crappy plastic tires......

My flippin 302 post worklog... Haha. Too bad the car is dismantled... Oh well. Time for something better. If you get a FREE Xanga website you can do your blogs and have a free gigabyte of photo uploads. I have one but I never update it any more 'cause I don't have a project car any more.

What the heck is a camber compensator and how does it work? LOL I know lots about bugs but nothing about a compensator... I like the idea of the swing axles with the VW bus reducer boxes. Those are pretty cool like the unimog axles... Not many guys run those because they like the independent rear suspension over the swing axles. The positive camber can cause some real problems...lol I have seen pics of a baja that has one side of the SUV style tire to the belts and the other side with 100% tread. LOL Kreger Fabrication built a retartedly sweet Baja prerunner with A/C and lots of cool stuff...(major understatement) http://www.desertrides.com/features/vehicles/trophy_bug/index.php IIRC that bug sold for around $110,000. They used something like 13 pounds of TIG wire on that puppy. LOL

I almost bought a bug and baja'd it... Then I bought the Z. This guy has a VG30ET powered Baja...LOL http://www.youtube.com/user/1BADBAJA www.blindchickenracing.com has some great suspension parts!

Not much hanging out then....

Bump... Happy Birthday again! LOL

Hmm... Production run? You should be able to mount the 45mm Extrudabody ITB's on top of these runners. I just have to get my set done first and make sure everything is kosher. Of course with CNC milled parts prices can get unhappy pretty quick.

Nope... I'm not that smart. LOL I was trying to make the point of making a counter rotating vortex to basically reduce the other vortexes to near zero. I am not very knowledgable in aerodynamics so I was just shooting from the hip. It now makes sense that creating turbulance inside the intake would hurt more than help. Now that I have seen Jeff's finalized design I was very impressed and wished that I had thought of that. OTM

Finally some progress..... Knife edged intake runner for the 90-93 U-60 heads. The runner is angled to match the angle of the ports instead of the mating face of the head.

You can use a head from an 80-84 Maxima L24E. It has 38.5-39cc combustion chambers and will significantly raise compression. go to www.ozdat.com and play with the Nissan engine calculator some.

Somewhere on here there is a picture of a quad turbo V8 and it has a tubular intake manifold... then again it probably makes a couple thousand horsepower.....lol I have thought about that very idea but I think it wouldn't be worth the weight over some of the other options. m4xwellmurd3r, I would not say it is a PERFECT plenum. I think it is an incredible compromise of balancing space vs. performance when one is staying within the space restraints of a stock Z body. It would flow enough for any street car and even most race cars.

Jared is referring to the flywheel to crankshaft bolt hole pattern.

ITB'd LS2 Linky: http://www.jenvey.co.uk/

With all else being equal, you have to have 3 more custom camshafts made for a flat plane DOHC V8... Now is it worth the extra $750-$1000 to have the extra couple cams? Maybe, maybe not... For a boosted V8 a Ford Windsor block might be a great choice. They can withstand supposedly 700hp which is plenty and there are always many head options... just getting the valvetrain to live at high RPMs will be a challenge. The good about the Nissan VH45 is that it is rather light weight for the size. The block weighs MUCH less than an L6 block. The heads are ~53 pounds each minus valve covers. If you strip it down to just the bare essentials then I bet you could have it to be a 400 pounder or even less. That isn't too bad at all. You remove about 25 pounds by not having a 90 degree chankshaft... Remove the stock VH intake and all of its emission junk- another 20 pounds saved. build a custom thermostat housing- 3 pounds saved build light weight thin aluminum valve covers- 5 pounds saved smaller alternator mount-4 pounds saved power steering delete- who knows how much....lol The VH45 is a heavy beast from the factory...but there are LOTS of things that can be done to shave off lots of weight from its fat belly. Just have to get it to go to the gym and work out a lot, lose weight, pick up a new crank and cams....and boom! With the VH I think the only things to worry about are possibly new timing chain tensioners and replacing the HLA's (hydraulic lash adjusters) with solid ones so that at HIGH RPMs you don't get valve(or rocker arm) float from soft or bad HLA's.

I think there is an interference problem with the downloadable header flange and 1 5/8 tubing with a 1/8" wall. Here is what I mean (#1 cylinder looking from cylinder head side): The overlap inside is fine as it can be ground down and such, but look at the top left at the bolt hole. The tubing actually overlaps the flange cutout. Don't mind the angle of the tubing bend, but the actual part of the tubing that is overlapping the hole for the bolt. There isn't much room for a weld either on that flange. I'll check my turbo manifold when I get home to see if it is like this and what can be done.

The JGS 400 series wastegate is a nice unit at $239... http://www.jgstools.com/turbo/index2.html T4 being an option wouldn't be that hard........

I'd design your header in Solidworks in trade for one of the tubular headers or the cash to renew my solidworks subscription that runs out in like September... If everyone pitched in a couple bucks that could get a good design going. BTW I do have a stock turbo header (the one with the more mid-mounted turbo flange, there were at least 2 different USDM turbo L6 headers) The first order of business is easy... there is already a turbo flange designed that you can download from HBZ. Second order... What sizes of stright and curved tubing and thicknesses are available? Third order... Eh... you aren't going to do equal length tubes unless you want it to end up looking like Monzter's header. lol The SFP header is a good design I think. Fourth order... T3 or T4 I vote T3 because the wide range of turbos, including big Holsets up to the HX40. Fifth order... I vote use a JGS precision 50mm or 60mm wastegate with the V band.

Did you not freaking see the part about 50MPG AND 300+ Ft. lbs of torque? There is almost no way a Z will get 42mpg with a < 2 liter gasoline motor and still be fun to drive. I'd do the VW TDI as well or a CA18DET and live with 25-35mpg. How many Z guys here care about the enviroment anyway? I mean there are guys with huge gas hog turbo V8's that get .02mpg and they do it because they can. I'm not shooting your idea down, but just look at reality here. You aren't going to make a 50mpg gas powered first gen Z and be able to use it for what the Z was meant for, having FUN. Sure you can work on the aero to reduce drag, add Honda Insight tires, strip the interior out, and probably get 50mpg... but what do you have then? A freak of a car that is trying to be something that it is not. Look at this page with the Hybrid Z motto for what this site is here for... No note of staying green or saving the enviroment. Also nobody has seriously thought about considerably changing their driving habits. Not just being light on the throttle, but using the pulse and glide method. Drive up the hills and then coast down. I have gotten higher MPG than the EPA rating in my 100% stock 2004 Frontier crew cab with the VG33(heavy beast). I normally averaged 19mpg which is in the middle of the 17-21mpg(before-10% ethanol gas) range given by the EPA. Lately I have been experimenting with better driving technique and have gotten up to 22mpg even with the ethanol mix. Before the switch over to 10% ethanol I got up to 23.5mpg over a whole tank. It also helps to make peak torque at 2200RPMs and never need to go above 2600RPMs except on the highway where the good 5th gear makes ~20mpg at 70mph and ~19MPG at 80mph but with aerodynamics like a big red brick. Heck, I got 17mpg out of my N/A L6 SU'd Z and I was just driving around normally which means shifting at 3500-4000RPMs and moderate throttle use. I gained about 2mpg after going to decently stiff coilovers, illuminas, and freshening up all of the U-joints/diff mount just from less suspension/driveline takeup losses. I also didn't have to use as much throttle to get the car moving... GnoseZ here has a 3.2 Rebello stroker with tripple weber 45's and he told me that he gets 28mpg on the highway. It probably goes down to like 10mpg or less under heavy foot situations but heck, that is efficient on the highway!

Not entirely correct... Someone did make an adapter to attach a FWD SR20DE to a L series transmission. It used a 3/8" plate between the motor and tranny and didn't have to modify any pieces...there is enough length on the L series tranny input shaft to make up the difference in clutch splines and still have full engagement.

Finished exhaust. That thing is pretty hot.

Geo metro 3 cylinder attached to an L6 tranny with one RB26 turbo..

Some of us are daydream believers... Dunno about BRAAP though..

I have a friend with free access to a CNC mill for some smaller stuff. (only 3 axis I think?) Don't ask...I'm not going into production now. I'll be finishing up my intake design and hopefully have it made up soon. I'm going to make up my own ITB design from scratch. I'll put the cylinder heads back on the block and take some final measurements before finishing up the design. Stay tuned!

Come on guys.. Jeff put tons of hours into his design and has stated he is not interesting in producing them... Let's not wear out our welcome. lol