Project Warpath Fiero (Page 1/2)
engine man NOV 16, 09:47 AM
Hi Fiero friends I am back and have a 88 fiero i will be installing a bored and stroked to 428 CI Ls engine mated to a Audi 8HP transmisson i will need to convert the trans from all wheel drive to 2 wheel and build or buy a adapter plate . I would use a standard transmission but due to the power level i am looking for i do not think they would handle it and a ZF 8HP 55 is good for 550 Nm or 406 flbs of torque in stock fourm i plan to turbo charge the engine to 1000 whp if I

[This message has been edited by engine man (edited 11-16-2025).]

fieroguru NOV 16, 04:47 PM
With the name warpath, I was expecting the W12 engine, but turbo LS will work as well!
engine man NOV 16, 06:05 PM
There is a a good reason for the name Pontiac had a Indian hood orderment on its Cheiftain and other cars and was know as the Indian and the engine I built is 428 CI and Pontiac made a 428 CI so it is a Indain on the Warpath to make a bunch of power That was my thinking behind the name anyway
fieroguru NOV 16, 06:22 PM
With the heavy Pontiac focus, you might want a set of these!

[This message has been edited by fieroguru (edited 11-16-2025).]

engine man NOV 16, 07:12 PM
nice but i sm running a Ls bored and stroked


fieroguru NOV 16, 08:53 PM

quote
Originally posted by engine man:
nice but i sm running a Ls bored and stroked



That doesn't need to stop you...
engine man NOV 16, 09:16 PM
are you making a adaptor for those as i know you make many cool things
fieroguru NOV 17, 07:12 AM

quote
Originally posted by engine man:

are you making a adaptor for those as i know you make many cool things



Medicemfg.com makes cnc billet adapters. I purchased a set, but didn't end up using them as they were too tall/thick and I needed to shift the placement of the valve cover slightly to clear my belt tensioner. The billet ones needed some clearance work for the two bolt bosses next to the intake to clear the rocker arms. I ended up making my own thinner version out of steel to make everything clear. With my thinner adapter plate, I ended up clearancing those bolt bosses on the valve cover.

Here is a drawing showing the interference issue. The red line is the inside contour of the valve cover, and the billet adapters below. This is with the valve cover shifter toward the intake, so if it is centered, the interference increases.


[URL=https://www.ebay.com/itm/176134652445?_skw=pontiac+ls+valve+cover+adapter&itmmeta=01KA8TN87NJ3DH03ACJAKBFN2S&hash=item290271821d:g:yZ0AAOSwHmdnvi0n&itmprp=enc%3AAQAKAAAA4FkggFvd1GGDu0w3yXCmi1fa6ivmCzDxNqaE7NjJfaNs4DT7IVJF3qQ7wlLaAy7X6LvtlVaU7A9%2BdID4 KgA93]https://www.ebay.com/itm/17...tlVaU7A9%2BdID4KgA93[/URL] JYNpsyBlRh%2FGkeXzGMwlEAPclqB30BnAD3SltWCr5VFpZL9ZvyxSY65hjlFLBDmLuUPR4f5GBA0a4GjpQQuqtKWCMcnq07pAd2hjO6%2FmUHmFscZ5ABo8mIgRZ%2FxAjroYwLfLECjIyu0Ivaex7%2BxKDPpKClX2WCDVKd3qHxMQ0fe01DsyWsbpTsqaP0dHmEcRb22AlWMAEYDbtnE%2FTCPUBJC%7Ctkp%3ABk9SR_aD1ZrSZg

[This message has been edited by fieroguru (edited 11-17-2025).]

engine man NOV 17, 06:56 PM
Ok I have 3 different transmission i feel i can use from Audi they are the 0B1 manual 6 speed FWD , DL 382 dual clutch or a ZF 8HP 55 converted to FWD . The 0B1 is the easiest just need a shifter and clutch peddal the ZF is the strongest but need to convert it to fwd and get a stand alone controler the DL382 7F is fwd but needs a stand alone controler and is rated about the same 400Nm of torque as the 0B1 with any of these i feel i will have about a 2 inch offset on the axle inner mounting flang to the hub with the valve covers right up tight to the firewall i feel i will need some sort of electric water pump and the alternator down low due to the fire wall slopes forward top to bottom.

[This message has been edited by engine man (edited 11-17-2025).]

Dennis LaGrua NOV 17, 09:40 PM
Must say that your projects always seem quite involved and complex but what is your end goal? If you are looking for a solid 1/4 mile car we have already seen 3800SC Fieros running in the 9 second bracket. Are you trying to beat that? Your work is certainly great, highly technical and worthy of praise so with all the work you will put into your swap my guess that your are going after show car uniqueness with your project..

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "