Critique my build...
#1
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I've decided to finally build my motor and I'm willing to admit that I'm not up to date with all of the new FI products/formulas for a high hp Z, so if you all could throw your opinions/suggestions out there I would appreciate it...I'm shooting for somewhere around 600whp and the car is an 04 btw.
I'm thinking of going with FP's S1 block, with ARP L19 headstuds, Cosworth headgaskets, BC 264s, CJM Fuel Return, Deatschwerks 850cc injectors, Haltech engine management, and Cosworth intake manifold.--Greddy kit w/ FMIC.
Thanks.
I'm thinking of going with FP's S1 block, with ARP L19 headstuds, Cosworth headgaskets, BC 264s, CJM Fuel Return, Deatschwerks 850cc injectors, Haltech engine management, and Cosworth intake manifold.--Greddy kit w/ FMIC.
Thanks.
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I have searched and that is what lead to this build...just seein if people who are more knowledgeable think this is a good/safe way to achieve my power goals, and/or if there is a better way to get them. Why HKS over Cosworth on the headgaskets?
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#7
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I don't know if the cosworth manifold is worth the money, but everything else on the build looks good. Have you picked out a clutch?
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#8
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Ditch the Cosworth head gaskets. At least some Cosworth head gaskets appear to be re-branded Cometics. Now use the search feature and see how many people have had issues with Cometic head gaskets over the years on FI builds. Now, I'm not saying that everyone has problems with Cometic head gaskets, but far more people have problems with Cometic head gaskets than HKS head gaskets. In fact, I don't recall ever hearing of a problem with an HKS head gasket. I heard of another Cometic head gasket failure within the last month or so over on the G35 forum. Search for the terms JTrain and Cometic, and you will find the thread.
Everything else looks fine.
It will be a nice setup and should easily make 600 whp.
Everything else looks fine.
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Last edited by ttg35fort; 10-03-2009 at 01:18 PM.
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EDIT: For context, I made over 600 whp with my greddy 18G kit at 17.5 psi with really, really conservative timing and AFR for pump gas. Even then, I had a lot more head room available with the Greddys. Alberto indicated that he is at over 650 whp with his Greddy kit on pump gas (I'm assuming it is the 18G kit, but I could be wrong). If the OP wants to run higher octane fuel, there certainly is more hp to be had with the 18G turbos. Then again, he may be using the 20G turbos, which will provide even more air flow. So, imo, stick with the 850cc injectors. Roger at Japtrix got my 1000cc injectors idling and running beutifully. The tune may take a little more time than if they were tuning with a smaller injector, but a good tuner will get those DW 850cc injectors smooth as a baby's @ss.
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Last edited by ttg35fort; 10-03-2009 at 01:58 PM.
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ya, the headache of tuning is why i would stray from them unless i was using e85 or something that required more flow. Goal being 600hp the ease of tuning would outweigh having bigger injectors if i was to choose them. He doesn't say what he plans on doing with the car but an assumption would be street driven if he's limiting it to 600hp.
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ya, the headache of tuning is why i would stray from them unless i was using e85 or something that required more flow. Goal being 600hp the ease of tuning would outweigh having bigger injectors if i was to choose them. He doesn't say what he plans on doing with the car but an assumption would be street driven if he's limiting it to 600hp.
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true true. i wo'nt disagree there.
i'm currently putting my car through rehab and doing the whole "built motor turbo" after doing a supercharger setup just 6 months ago. goals change i guess.
i'm currently putting my car through rehab and doing the whole "built motor turbo" after doing a supercharger setup just 6 months ago. goals change i guess.
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The Cosworth Intake will flow like a ****, but crushes a wallet. You can get the power you want with an APS Tallboy or a 5/16" spacer as well. Keep the 850cc DW's, you will need them.
Finally, the Haltech is great, but if you are considering using F:T as your tuner (since you are in VA) uou should talk to Dave about the ViPEC. It costs about the same and has more features, plus my tune is very drivable around town and super smooth.
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i hate commetic and so does my builder for ovbious reasons....the cosworth i have is nowhere similar to that one....where did you come up with that case of a cometic gasket rebadged as cosworth?...are you sure that wasnt a comfusion?.....did that gasket failed?.....
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just wondered, sounds like a bit of jumping the gun if you are just going of a single "case" anyways.....so far i have never seen an issue with the cosworth gaskets (buildings actually put a cosworth gasket and not somethign else they try to make it pass) on builds i am familiar.
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Last edited by IIQuickSilverII; 10-04-2009 at 05:16 AM.
#16
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My understanding is that the Cosworth gasket is "thicker" than the other gaskets and is the go-to gasket if the heads have ben re-decked more than once and clearance is very tight.
HKS gaskets work, no discussion on that, but they are crazy expensive. The HR gaskets are like 1/3 the price of HKS and have also been proven to hold power with stock TTY headstuds to ~15-17lbs (per Kenefic) and well past that with the L19 headstuds. I will find out first hand if they last at ~25lbs boost when I crank it up in the spring.
HKS gaskets work, no discussion on that, but they are crazy expensive. The HR gaskets are like 1/3 the price of HKS and have also been proven to hold power with stock TTY headstuds to ~15-17lbs (per Kenefic) and well past that with the L19 headstuds. I will find out first hand if they last at ~25lbs boost when I crank it up in the spring.
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If the HKS had the same coolant flow configuration as the HR, it would be a no brainer. But you are correct, it has not yet proven itself. I still have a little time before I have to make my final choice. I'll follow up with Sam to see how his high HP builds are holding up. I think he is mostly using HR headgaskets.