Front only. The stock rears most time last and flow well. Tis the front that most wish to change out.
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Mods
OBX long tube headers, Flow master single 3" in with dual 2.5 outs. VR4 runners with 2 liter plenum, port matched lower intake, stage 3 or better race preped heads with 1 mm oversize Rev valves, Rev race dual springs and Rev keepers, Delta/HKS 272 cams, 3SX adjustable cam gears, 3.0 Cobra Mustang Throttle body, 3.0 LT1 maft and Maftranslater gen II, Alum. Flywheel, Spec stage 5 clutch, VR4 injectors, Wizard wires, Unorthadox under drive. IPS fuel rails w/adj FPR, Fuel loop, Walboro 255 hot wired, Hot wired single fan. Short shifter, Battery relocate. EBC front slotted rotors, EBC Yellow stuff Pads, 3SX SST brake lines, sway bars, springs.
No IAC, NO AC, NO extra weight, VR4 ECU as of NG2011. Still 10 to 1 slugs, Nitto NT05 Comptition Road Course Racing tires. Magan coil overs, 3sx adjustable rear links. http://www.youtube.com/watch?v=2s0I3tnGGmg[/url]
1st place fastest NA - TXG 2012. 1ST place highest hp NA-240 FWHP TXG-2012. 1st place fastest NA - Drag - TXG 11 98mph, 1st place quickest NA - drags 14.773, 1st place Dyno - TXG11 229 FWHP & 236 tq, 2ND place Auto cross NA C/S- NG2011, 1ST place NA dyno - TX gathering 2010 - 229 FWHP & 199 tq, 1st place Fastest NA - TXG 2010 - 98.3 trap, 1st Place quickest NA - TXG 2010 - 14.680, 2ND place 1/4 at NG10, best NA time NG10 - 14.932- no traction, 2ND place 1/4 at NG09,
2ND place Autocross NG09
Front only. The stock rears most time last and flow well. Tis the front that most wish to change out.
I don't understand that. Stock manifolds will allow big TD04 turbos to push 600hp. Stock TD04-9Bs can't keep up with a stock car at 15 psi. I doubt headers will change that at all. What I am saying is stock manifolds out flow the 9BS so headers won't give you much of a benefit on a stock car.
I don't understand that. Stock manifolds will allow big TD04 turbos to push 600hp. Stock TD04-9Bs can't keep up with a stock car at 15 psi. I doubt headers will change that at all. What I am saying is stock manifolds out flow the 9BS so headers won't give you much of a benefit on a stock car.
Thats why it needs to be dyno tested before and after to silence the nay sayers. Best way todo it, I think, is on a stock car. Either u r right or the builder is right until then its a guessing game.
it is a good idea. If the header proved to actually make back to back gains I for one would run one. Until then it seems like a waste of time to even install.
I don't understand that. Stock manifolds will allow big TD04 turbos to push 600hp. Stock TD04-9Bs can't keep up with a stock car at 15 psi. I doubt headers will change that at all. What I am saying is stock manifolds out flow the 9BS so headers won't give you much of a benefit on a stock car.
This is the same story you read at Evom forums in regards upgrading the stock cast manifold on stock turbo(way better design that ours ) vs 3 types of tubular headers and the results are great 27awhp at minimum and 57awhp with long tube NO TUNE added and not a single change in spool.
"Why upgrade if the stock one will get you 500awhp" they say... MAP showed up with 3 dyno sheets and shut some mouths out there.
So until I can test my manifolds in a car Dutch is right we would not know altho I do not have the minimum doubt that my headers will add hp to the graph
Last edited by GCtech Industries; 01-04-2013 at 12:18 AM.
This is the same story you read at Evom forums in regards upgrading the stock cast manifold on stock turbo(way better design that ours ) vs 3 types of tubular headers and the results are great 27awhp at minimum and 57awhp with long tube NO TUNE added and not a single change in spool.
"Why upgrade if the stock one will get you 500awhp" they say... MAP showed up with 3 dyno sheets and shut some mouths out there.
So until I can test my manifolds in a car Dutch is right we would not know altho I do not have the minimum doubt that my headers will add hp to the graph
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Re: VR4 needed for header test
http://www.youtube.com/watch?v=2s0I3tnGGmg[/url]
3s less for NOW!! 
