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Thoughts on a 928s 4 retro mod

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Old 01-09-2016, 02:13 PM
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diesel1
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Default Thoughts on a 928s 4 retro mod

Hey All,
I'm new to the 928 forum, I recently leased my first Porsche ( 991 gts) it's probably the best car I have ever driven, the lease is up in a year and a half and I'm looking ahead to my next Porsche. I've always loved the 928 and was looking for one prior to the 911. I couldn't find the right deal and moved on. I now have an opportunity to pick up a (non running, but body is in great shape) 87 928 s4. My question is has anyone been able to transplant a modern high power V8 into a s4 while keeping awd. I am by no means a purist, so the idea of a retro mod 928 appeals to me, I'm looking for modern performance with classic design. Any info you guys can direct me towards is appreciated.
thanks
Old 01-09-2016, 02:17 PM
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Cosmo Kramer
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Originally Posted by diesel1
Hey All,
I'm new to the 928 forum, I recently leased my first Porsche ( 991 gts) it's probably the best car I have ever driven, the lease is up in a year and a half and I'm looking ahead to my next Porsche. I've always loved the 928 and was looking for one prior to the 911. I couldn't find the right deal and moved on. I now have an opportunity to pick up a (non running, but body is in great shape) 87 928 s4. My question is has anyone been able to transplant a modern high power V8 into a s4 while keeping awd. I am by no means a purist, so the idea of a retro mod 928 appeals to me, I'm looking for modern performance with classic design. Any info you guys can direct me towards is appreciated.
thanks
Do you think S4 means awd? It means the 4th revision on the 928 model. They are all RWD.
Old 01-09-2016, 02:18 PM
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James Bailey
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the 928 S-4 is NOT ALWHEEL DRIVE......rear wheel only.
Old 01-09-2016, 02:20 PM
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James Bailey
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numerous Chevy engines have been transplanted including LS7....also a V-12
Old 01-09-2016, 02:52 PM
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diesel1
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Originally Posted by James Bailey
the 928 S-4 is NOT ALWHEEL DRIVE......rear wheel only.
I did think it was awd... ooops. 911 4s on the brain I guess.
Old 01-09-2016, 02:57 PM
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diesel1
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Curious how they put down the power with 500+ hp
James do you know of any builders who do the conversions.
Old 01-09-2016, 03:05 PM
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Originally Posted by diesel1
Curious how they put down the power with 500+ hp
James do you know of any builders who do the conversions.
the GT2rs turbo 911 is rear wheel drive only and I found it to put down the 600 HP quite well
Old 01-09-2016, 03:07 PM
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docmirror
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What's your mission for the 928 S4? Stop light racer? Track? Cruiser?

How much is the non-running 928?

What's stopping the 928 from running now? Some failures are catastrophic and would lead to a new engine. Many failures are not, and can be fixed with a few hundred bucks, and some hours spent by a qualified tech.

Note that for the most part, transplanting a Chebby V8 into a Porsche pretty much wrecks the value of the car. Also, not sure that dropping a hi power lump in a 928 would qualify as a 'retro-mod'. To me, the 'retro-mod' style is something one would see on the streets of Cuba, or maybe - Bangladesh. One man's opinion....
Old 01-09-2016, 03:25 PM
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77tony
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Originally Posted by diesel1
Hey All,
I'm new to the 928 forum, I recently leased my first Porsche ( 991 gts) it's probably the best car I have ever driven, the lease is up in a year and a half and I'm looking ahead to my next Porsche. I've always loved the 928 and was looking for one prior to the 911. I couldn't find the right deal and moved on. I now have an opportunity to pick up a (non running, but body is in great shape) 87 928 s4. My question is has anyone been able to transplant a modern high power V8 into a s4 while keeping awd. I am by no means a purist, so the idea of a retro mod 928 appeals to me, I'm looking for modern performance with classic design. Any info you guys can direct me towards is appreciated.
thanks
click here: https://rennlist.com/forums/928-foru...b-project.html

then here: https://rennlist.com/forums/928-foru...ished-car.html

Welcome to the forum T

Last edited by 77tony; 01-09-2016 at 03:50 PM.
Old 01-10-2016, 03:27 AM
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My 928S4 is an AWD.
Old 01-10-2016, 06:43 AM
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Originally Posted by diesel1
Curious how they put down the power with 500+ hp
James do you know of any builders who do the conversions.
Todd Tremel is putting down 941 hp at the rear wheels. The 928 has a very modern all aluminum V8 engine, DOHC and four valves per cylinder. What more can you ask? For more power there are many who are willing to help you for a certain bundle of money.
Åke
Old 01-10-2016, 03:38 PM
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diesel1
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Originally Posted by James Bailey
the 928 S-4 is NOT ALWHEEL DRIVE......rear wheel only.
Originally Posted by docmirror
What's your mission for the 928 S4? Stop light racer? Track? Cruiser?

How much is the non-running 928?

What's stopping the 928 from running now? Some failures are catastrophic and would lead to a new engine. Many failures are not, and can be fixed with a few hundred bucks, and some hours spent by a qualified tech.

Note that for the most part, transplanting a Chebby V8 into a Porsche pretty much wrecks the value of the car. Also, not sure that dropping a hi power lump in a 928 would qualify as a 'retro-mod'. To me, the 'retro-mod' style is something one would see on the streets of Cuba, or maybe - Bangladesh. One man's opinion....
The car I'm looking at is 5k. My intention would be to redo the entire car with modern components(engine, suspension, brakes, interior etc.) The goal is to create a modern version of the 928 to my specs while keeping the style of the original car pretty much in tact. I would use this as a daily driver with the occasional track day. I'm not looking to restore the car to its original form to sell or to collect. The value to me is having a classic car that looks and performs the way I want it. So its ultimate resale value is not a concern for me.
Old 01-10-2016, 03:54 PM
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docmirror
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Alrighty then. Sounds like a Chebby lump is in your future. I'm sure you can make it perform better than Porsche. All it takes is money. Starting price sounds attractive.
Old 01-10-2016, 04:02 PM
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These folks sell a kit for a modern SBC in a 928:
http://www.renegadehybrids.com/928/928.html
Old 01-10-2016, 04:03 PM
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James Bailey
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As a point of reference the Nissan Juke R of which a few have been built puts the basic Juke body on full Nissan GTR mechanicals...so awd 600hp huge brakes launch control etc, etc, ....
It sells for about $600,000 or more than 4 times what the GTR does. All for the sake of being different.
The $5,000 donor S-4 is but a tiny fraction of what such a project would cost ....


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