340ZXTTAZ Posted June 23, 2007 Share Posted June 23, 2007 Justin I just sent you a deposit for two flanges. Thanks for all your hard work and I look forward to getting the parts. Link to comment Share on other sites More sharing options...
JustinOlson Posted June 23, 2007 Author Share Posted June 23, 2007 Thanks For the paypal payment. Regards, Justin Link to comment Share on other sites More sharing options...
kj280z Posted June 23, 2007 Share Posted June 23, 2007 Justin, Hey... I just sent you payment for 2 intake flanges... I'd also like the plenum base, but wasn't sure how much to send ... please let me know and I'll send it asap. Additionally, I'd like to begin collecting the other parts required to complete the manifold... do you have a source for the velocity stacks and the other bits that were shown in the diagrams? Thanks Ken Link to comment Share on other sites More sharing options...
240Z_478 Posted June 23, 2007 Share Posted June 23, 2007 Not sure if it was from justin or someone else but there is a sight. http://www.rossmachineracing.com/intakeparts.html Link to comment Share on other sites More sharing options...
JustinOlson Posted June 23, 2007 Author Share Posted June 23, 2007 The plenum base has integrated velocity stacks so theres no need to use those expensive pieces from Ross Machining. I've used Ross Machining velocity stacks in the past, and they work well, but require more cylinder spacing then the L28 affords. Thanks for the Payment KJones. I will talk to the machinist hopefully tomorrow and get a final price on the plenum base. I've had a hard time catching him lately. I will post a shopping list for those building these manifolds. Regards, Justin Link to comment Share on other sites More sharing options...
kj280z Posted June 24, 2007 Share Posted June 24, 2007 Justin, I definetly want 2 of the plenum bases so if you need a deposit let me know how much and we can square up on the balance when you have your final pricing on them Ken Link to comment Share on other sites More sharing options...
JustinOlson Posted June 25, 2007 Author Share Posted June 25, 2007 The plenum bases with machined in velocity stacks are $75. So a deposit on these would be $37.50 through check or Paypal on these would be $38.81. The machinist is going to work on the tool paths for the mastercam files. He is trying to finish those up this week. Hopefully we can have a prototype by the end of the month for both the plenum base and cylinder head flange. Regards, Justin Link to comment Share on other sites More sharing options...
kj280z Posted June 27, 2007 Share Posted June 27, 2007 I just sent payment for 2 plenum bases... thanks! 77.62 via paypal Link to comment Share on other sites More sharing options...
JustinOlson Posted June 27, 2007 Author Share Posted June 27, 2007 Thanks Ken! We are getting there we interested people. I need to call the machinist tomorrow for an update. Justin Link to comment Share on other sites More sharing options...
JustinOlson Posted June 27, 2007 Author Share Posted June 27, 2007 We are doing good. We have 6 orders with deposits down for the intake flange and plenum base. I've put this project ahead off all of my others with this machinist to try and expedite the process. Regards, Justin Pre Order List: 1. Vintage-TechZ (intake flange & plenum base) Deposit Paid 2. 240Z_478 (intake flange & plenum base) Deposit Paid 3. 340ZXTTAZ (intake flange) Desposit Paid 4. 340ZXTTAZ (intake flange) Deposit Paid 5. Kenneth Jones (ntake flange & plenum base) Deposit Paid 6. Kenneth Jones (ntake flange & plenum base) Deposit Paid 7. 8. 9. 10. 11. 12. 13. 14. 15. Link to comment Share on other sites More sharing options...
spacecase70 Posted July 5, 2007 Share Posted July 5, 2007 i am still haveing to wait to place my order til i get my bottom end rebuilt, it has gone sour Link to comment Share on other sites More sharing options...
JustinOlson Posted July 5, 2007 Author Share Posted July 5, 2007 Thanks for the bump, I will call the machinist for an update. Regards, Justin Link to comment Share on other sites More sharing options...
Yoak Posted July 5, 2007 Share Posted July 5, 2007 I was looking at the model of the manifold last night. The current plenum configuration as seen is setup for upto 75mm throttle bodies. You could easly make it work with a Q45 (90mm) throttle body if you wanted. I personally don't think these motors really are going to see any restriction with a 65-75mm throttle body. Regards, Justin I am really interested in ordering one of these also. As the manifold is setup will the throttle bodies bolt as they did on the original manifolds? Link to comment Share on other sites More sharing options...
Zmanco Posted July 5, 2007 Share Posted July 5, 2007 Justin, any thoughts about selling a fully assembled intake manifold for those of us without welding skills? Link to comment Share on other sites More sharing options...
Administrators RTz Posted July 5, 2007 Administrators Share Posted July 5, 2007 As the manifold is setup will the throttle bodies bolt as they did on the original manifolds? As Justin has it drawn, its wide open for any type of flange. I built a Ford Crown Vic. flange, at 65mm. Bolts on in a similar fashion to OE (vertically oriented throttle shaft, though).... Keep in mind, one of the things that make this manifold work is the TB size. Not from a CFM perspective, rather an emphasis on a smooth transition from the TB to the inner walls of the plenum. Link to comment Share on other sites More sharing options...
Administrators RTz Posted July 5, 2007 Administrators Share Posted July 5, 2007 I can't speak for Justin, but there is a possibility that I will make a few, with some minor cosmetic and performance enhancements. Here's the catch... they won't be inexpensive. To be profitable, $1200 to $1300 is looking like a realistic figure. Still game? Link to comment Share on other sites More sharing options...
Zmanco Posted July 5, 2007 Share Posted July 5, 2007 Ron, that is a thing of beauty! I am curious that the intake filter is inside the engine compartment where it will take in warm air. Is the benefit of cold air offset by it having to pass through a few feet of tubing? Just curious. Link to comment Share on other sites More sharing options...
Zmanco Posted July 5, 2007 Share Posted July 5, 2007 Here's the catch... they won't be inexpensive. To be profitable, $1200 to $1300 is looking like a realistic figure. Still game?I hate to say this, but for me the answer is probably no. Not because I don't think it's worth it (I do), but for my moderately-built N/A L28 it's unlikely I would gain enough benefit to justify the cost. Link to comment Share on other sites More sharing options...
Administrators RTz Posted July 5, 2007 Administrators Share Posted July 5, 2007 I am curious that the intake filter is inside the engine compartment where it will take in warm air. Is the benefit of cold air offset by it having to pass through a few feet of tubing? You are correct, a better option would be a cold air intake. There are a couple reasons this car was done this way. If you'll notice, the engine compartment has been completely smoothed and painted. The removal of the AFM leaves an unattractive bracket. Due to time constraints and this car being a show car first, it was done this way, in part to hide the bracket (sits directly under the filter). Next winter's project is to relocate the battery, remove all excess bracketry, and re-spray the compartment. I hate to say this, but for me the answer is probably no. Not because I don't think it's worth it (I do), but for my moderately-built N/A L28 it's unlikely I would gain enough benefit to justify the cost. I might argue that, depending on where your 'at' right now. If you are currently injected and using an OE manifold, you'll notice power dropping off pretty seriously by 5500 rpm. The manifold is the leading contributor. Runners are *tiny*. Even on a bone stock L28, this manifold would wake up the top end. A couple 'gotcha's'... you will need some sort of programmable EMS as the factory L-jet would be 'lost'. Valves *will* float with stock springs. Right now, this motor, with a mild cam and matching springs, is pulling to 7300rpm... where its beginning to float valves. This manifold wants to spin! See where I'm going with this?... the issue will become one of mechanical limitations. If you address those, even on a stock cam and head, I believe there is plenty of room to justify a manifold upgrade. Just my dos pesos. Link to comment Share on other sites More sharing options...
JustinOlson Posted July 5, 2007 Author Share Posted July 5, 2007 I'm purchasing a ThermalArc Arcmaster 185 TIG welder this week. I may be willing to weld a couple of these up. I wont set a price on one until I've finished one for my personal car. Justin Link to comment Share on other sites More sharing options...
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