Iwanna928

When you get her setup she will fly! I am new to the game so I am enjoying playing w/ the Porsche engine. That said I have looked many times at the Renegade setup and it makes good business sense, thats for sure.

Good luck and keep us informed.

I am really interested in hearing how she drives!


Stephen

Larry Velk

There is no way I would rebuild my Porsche motor if it blew up. Not only would it get a Chevy, but it would get the biggest one that I could afford. Hopping up these 32v's seems stupid to me. My '86 5sp is a dog. Why spend time and effort to maybe get 320 rwhp with a heavy, poorly designed motor when one produced since 1955 will beat it like a red-headded stepchild with one third the parts and 10 times the reliability.

GlenL

A local guy has done two SBC conversions. He reports that it cost a lot more than expected. Where? In things like making the gauges and A/C work, adapting the power steering and changing the tranny to work in the power band of the new engine.

Imo000

Maybe there is something wrong with your 86. Since it's a 5-speed, it really should fly. I was pulling 13.7sec in 100% stock configuration and after a low boost supercharger (6psi) it's down to mid-high 12 second. That's not slow.

Nicole

Wow - I did not realize carburetors for cars still exist these days. I could not think of one reason why I would want to go back to a car with a carburetor.

Either way: Good luck with the project! I hope it will do all you hope for.

Here is the new menu:

Wienerschnitzel with Fries
Jägerschnitzel with Spätzle
Ricerschnitzzle with Carburetor

GlenL

That's what I was thinking. In proper tune the cars really move. Get that done and then add some Porken chips.

Landseer

Larry's sig line shows he has an FZR it seems to gauge acceleration.
And, an XKE in a million pieces.
His mind is calibrated in uncharted territory.
Plus, he's running those old authority chips, not the new Porken set-up.

Regarding conversions, its funny that a 928 engine can fit in a Z car, but not a 944.

Mike Frye

Ricer. Doooooood.

Oh well. You were already most of the way over to the dark side, we always knew you were going to be tempted and now you've revealed your true colors.

You can expect to suffer the slings and arrows of many purists (if there are any left on this board) but you knew that going in. Good luck with it and keep us posted.

I think any development that breaks new ground is a good one, even if it only shows where not to tread for others.

Looking forward to updates.

djurek

Good luck with your project!

smudaaar

IDK my euro S will smoke 11.5" tires all day long. I'd put my car up against any camaro or fireturd w/a lt1/ls1. + when I pop the hood people look @ my engine scratch their head and say "WTF"

smudaaar

on the crate engine. You will get the best bang for your buck going chevy powered. Just don't write "CHEYPORSCHE" on the back of your car. May I ask why you didn't just install a S.C. from carl for 7k?

inactiveuser1

Might as well go for it as I can't see it hurting the value of the car anymore than they are now since after looking at prices only cars seem to be worth anything are the GTS cars.How many non GTS cars lately have sold for some serious money?

RicerSchnitzzle

It was a compromise, no choke and long warm ups to get the better performing carb with race floats. Stock floats can starve the engine during heavy cornering. Not something you worry about on the 1/4 mile track. I can rebuild and set up Holley style carbs in my sleep. Annular boosters are new to me but just need smaller jets and air bleeds. The adjustable vacuum secondary is what makes it okay for the street. I will really have to get on it to open the back two barrels. And of course 1/3 of what a decent stand alone FI system would have cost.

Mmmm Jägerschnitzel with Bratkartoffeln, I had that 2-3 times a week when in HS in Frankfort.
Note: NASCAR and most drag cars still use carburators. The advantage of FI is in economy and fine tuning. As far as brute power both can hit the numbers just fine. A carburater with adjustable vacuum secondaries can have great street manners until you hit WOT.

Cheyporsche, I think not! It'll be PorsCHEVY... No not really.
It's a CIS system. To get 450 to 500RWHP would require a lot of uncharted modification to the CIS system. Higher system pressure and programming the E-wur. Also I have real big cams and the overlap is not pro boost.

Selling most of my hybrid parts (Except the cams) has allowed my to plan for a full roll cage and new rims with wider tires. Total cost for the swap will be under $7500. So for the cost of a SC set up, I have more HP and more TQ without the headache of making a SC work that well on a 16v CIS system. Plus the torque comes on strong much lower in the rpm band than a system with boost.

As for the unseen costs, there are some but they are small. I have no A/C, power steering pump lines are under $30 for new connectors to mate to the Porsche rack. Renegade has all the adapters to make stock gauges work, under $100 total.

Understand, I have full respect and love for the Porsche power plant, it's an amazing piece of work. But from a cost to power ratio it's no where near what's available for SBCs. There are a couple guys making silly power from 928 engines, well over what I will make or need. But the cost to get there, the trail and error, and of course the cost of grenading an engine didn't make sense for me. I hope to join the S4 club someday and will most likely keep it stock. However my 81 Euro S will never be a concourse car. I had the typical 928 that needed $15K to be a $10K car. So I chose to have fun with it. Play with the go fast bits, brakes and suspension. She's a rocket now, but I want even more power. Nitrous is fun but very selective as far as when you can use it.

Understand, I am in no way saying the 928 engine is a POS or lacking, it was economics and the challenge that made me leave the flock....

Besides I still have 2 other sharks staying stock....

blau928

Something is definitely wrong with your car...

I personally have one of the highest mileage 928, with more than 300,000 MILES on my 928, and it has been extremely reliable, and reasonably fast for a 20 yr old car. It's no F599, but then again, I did not pay $300K for the car either. The heads have never been off, and the car laid down 270+ RWHP with more than 290,000 miles on the clock..... It has seen track days, and has been driven all over the place, and I am not afraid of getting stuck in it.

320 RWHP is about 400 HP at the crankshaft, and quite good for a street car designed 20 years ago. (PS, some reguar 5.0 GT motors have done 320RWHP The 928 motor is not poorly designed. It is actually a very good design. It is expensive to break, and fix, yes. However, GM has made a zillion SBC's, and PORSCHE has made anywhere near 5 million 928 motors. Economies of scale here in cost..

A properly prepared 928 6.0 Liter stroker will put out 500 CHP, and run as well as the crate 383 carburated motor, and be much more efficient with EFI. Again, economies of scale in price of components..

As far as reliability, if you take care of the car, it will last a very long time.. The 928 motor was designed, and works very well going flat out all day on the Motorway. I have driven one on the Autobahn in Germany (as well as many other cars), and the 928 is extremely rewarding, and comfortable.. Anyway, back to engines... I would like to see how long the crate motor lasts driven at 6k rpm all day long. To do that you would probably need a NASCAR spec, or at the bare minimum a marine spec motor, and they are very expensive as well..

I am not knocking GM's products... I have 3 GM based engines, a 454 CI, a 496 CI, and a 588 CI.. All marine motors for my powerboat... You think Porsche stuff is pricey.... Go price a marine spec Mercury Marine Blue motor like say a HP525.. (They are built to run WOT all day long, and hand built, so it would be a fair comparison to a Porsche motor....) Even a 383 Scorpion motor will cost more than $15K in marine spec built by Merc in Wisconsin. And it's not the same as a crate motor from GM, although the block is GM...

Just saying, apples to apples...

Nicole

With Potatoes? Interesting... That tells you about the differences in local cuisine. After all, Frankfurt is right at the Potato Border (the "Main" river). Traditionally, people North of it ate more potatoes than pasta, while the South has always had the Spätzle...