Chebby V8 conversion on a 90GT?
#17
I'll help you install it doc and in payment I'll take that broke *** GT engine off your hands.
#18
Rennlist Member
I say do it Doc. When my S4 supercharged engine dies someday, I am doing an LS3 (or LS7) conversion. No question. The body and handling is what I love, I could care less if a purist doesn't like it that it has a chevy motor. I could have Porsche valve covers made if someone really wants me to live a lie.
#21
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Put the engine under the bench, along with the brains and all the wiring harnesses, do the Renegade conversion, keep all the receipts, and post a lot about the experience. There's so much FUD about Renegade conversions, I'd like to see one chronicled in gory detail with tabs on what it actually costs.
If the motor is keeping you from enjoying the car, then as long as you keep all the bits to put it back to stock, why not?
If the motor is keeping you from enjoying the car, then as long as you keep all the bits to put it back to stock, why not?
#22
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#24
Nordschleife Master
Your car, your choice.
Not what I would do, but that's irrelevant.
Mainly because I couldn't afford even a "Broke *** GT."
Good luck with the conversion. Please keep us posted on the project.
Not what I would do, but that's irrelevant.
Mainly because I couldn't afford even a "Broke *** GT."
Good luck with the conversion. Please keep us posted on the project.
#25
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Put the engine under the bench, along with the brains and all the wiring harnesses, do the Renegade conversion, keep all the receipts, and post a lot about the experience. There's so much FUD about Renegade conversions, I'd like to see one chronicled in gory detail with tabs on what it actually costs.
If the motor is keeping you from enjoying the car, then as long as you keep all the bits to put it back to stock, why not?
If the motor is keeping you from enjoying the car, then as long as you keep all the bits to put it back to stock, why not?
I was "in on" the very first Chevy engines that got put into 911s and 914s, by Rod Simpson....way before "Renegade Hybrids" was created by Mike Houser. I personally had a '67 911 with a very "warmed over" 302 69 Z-28 engine (IROC engine), that would pull redline in 4th gear before turn 2, at Riverside. It would pull redline in 5th gear, down the front straight away at Willow Springs (175mph.) I wish I could say it was easy and as simple as it seems, from outside. I spent many hours building it and many hours working out all the little details. The thing was in and out of the chassis so many times, I wished it had wing nuts for the mounting hardware.
The horsepower was certainly more than I could have ever gotten out of a 911 engine, back in mid '70's...so it made some sense....
Would I do it again today?
Not if I could make similar power with an original engine....the "bastard" vehicle thing is very difficult to ever get over. The Chevy guys hated it, the Porsche guys hated it, the Cobra guys hated it, the Pantera guys hated it, the Ferrari guys hated it, and everyone else that got passed by it hated it.
__________________
greg brown
714 879 9072
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Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
#26
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#28
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Not if I could make similar power with an original engine....the "bastard" vehicle thing is very difficult to ever get over. The Chevy guys hated it, the Porsche guys hated it, the Cobra guys hated it, the Pantera guys hated it, the Ferrari guys hated it, and everyone else that got passed by it hated it.
As for the Renegade conversion, I haven't done one, and I could do all the bits myself, but that's what sounds like pulling the engine time, after time, after time. Once I get the clutch, bellhousing, and motor mounts sorted(like they have), all the rest can be done with the lump in the chassis. PS lines, AC lines, fuel delivery, water cooling can all be done with the engine in. The hard metal stuff is what I want the Renegade for. Also have to figure out the tach and the senders for the gauges but all that is doable with the engine in.
I might have to do one or two pulls, but if none of the acc are connected pulling the Chebby motor is pretty easy as long as the hood is off. Also have to worry about exhaust, but that can be done with the engine in most times. I can prolly start with the headers on and see if they fit. If not, lifting it up isn't a big issue. Still thinking about it, but leaning toward the swap.
#29
I say go for it. The LS to 5-speed manual swap is the easiest as no custom Flywheel needs to be done. The 5.3 and 6.0 liter iron-blocks can be had for a song and all the Corvette intake/accessories interchange. Most importantly updated fuel injection and tunability....with a laptop.
#30
Under the Lift
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I see the problem...you didn't drive the 928 enough for it to stay reliable. A buddy just agreed to buy a beautiful 928 with only 36K miles on the odometer. It blew a head gasket during the smog test.