fourside

I realize that the title isn't spelled correctly. Now.

Joe '87 S4

Well, I've put down about $30K in repair bills and I still like the car so I guess it has some great power over me. Maybe you're talking about HP though

justin

Me, Im putting down about 190 at the rear wheels.

Scott M.

Check out James Komiaks site in the members section...

He has some cool comparo's of hp/tq to years.

PorKen

Hell yeah, me too!

Don't forget about 220tq at the wheels!

Warren928

With a chebby motor or all genuine porsche?
I think the record is around 650 crank horsepower with all genuine porsche and I think the reason nobody has gone higher is because of the transmission. Of course 650 hp will get you around town at a pretty good clip so maybe there is little point to going higher.

IcemanG17

It will most likely be that 928 dragster.....but it has a chevy engine.....now with a real Porsche 928 V8....I think Murphy wins that at 556whp....Deveks (6.5L) white car at 549whp....& Joe Fan & 512whp?? But the old Bob Devore insane strokers were 700+hp? Or so I heard?

Malibu310

We have 600HP AND 600 lbs torque at the crank with the Yellow Beast ... blown Chevy 355 cu.in.

C.F.

I think you will find that Tim's friend with 'The Red car' might be at the top of the list , unfortunately I don't recall any bhp ever mentioned , but with 26psi (?) it must be a lot.

hacker-pschorr

Todd is a machine wrapped in a human body. When one "project" (or 928 engine combo) is working well - he tears it out to try something else. He was running 22-24psi on a 5.0 with 951 pistons.

He has since ran a 6.1 stroker, at a boost level I cannot remember. This is the “sister” motor to the one Tim Murphy is selling. Custom crank, rods, pistons, bored out etc…
https://rennlist.com/forums/928-forum/271335-6-1-liter-stroker-short-block-for-sale.html

His current motor is using stock crank & rods with 110mm bores to the tune of 6.1+ liters (I cannot remember the exact numbers) at 15psi while the motor brakes in. I’m sure the boost number will increase slowly as he tests the motor.

Once he is confident this motor is working well, he will remove it to increase the stroke on the 110mm bore motor for a 7.1 liter supercharged engine.

He has talked about making a 7.4 liter high compression normally aspirated race motor to drop into an S4 chassis he purchased last year.

Keep in mind he performs 95% of the work (including the machining) in his garage.

So far he has not reported any issues with the stock Automatic transmission in his car. I would also like to point out the car he is using for this project has 150,000+ miles on it. If he has rebuilt the trans since purchase, he has not told me about it.


Sitting in his garage next to the 928 is a motorcycle he built from scratch. Powered by a supercharged type 4 VW engine putting 350+hp down to the ground at the back tire. Ever since I met Todd (over 10 years ago) this bike is his daily driver when the weather permits. Before starting the 928 project, he was carving a new crank for his bike from scratch – since he could not find a current VW crank to suit his needs.

First visit to his garage he was making 911 cylinders on a lathe for a race motor he was building. He said none of the aftermarket 911 cylinders were good enough, so he decided to make his own.

Some info on his current motor:
https://rennlist.com/forums/928-forum/239222-110mm-bore-928-engine-project-plans-for-a-7-4-liter-in-the-works.html
IIRC he has over 3,000 miles on this engine already – it is now his daily driver, said the bike just doesn’t “do it” for him anymore. So if a lightweight aluminum 7-speed motorcycle with 350 rear wheel horsepower doesn’t cut it, I can only imagine what his S4 is like. Last time I went for a ride it was only the 5.0 24psi motor. Usually I drive myself or ride with Tim Murphy (it gets old watching multiple 500hp 928’s pull away).

tomboyea123

I made 517 rwhp with my supercharged 89 gt with msds headers

Louie928

I believe that may be Don Hanson. IIRC, 573hp and 479 lb ft. That is rear wheel power measured on a Mustang dyno. Mustangs reportedly measure lower power than Dynojets. The engine is 6.5L, NA, no boost. All I've got is a very poor quality scan of his dyno sheet.
https://rennlist.com/forums/attachme...hmentid=&stc=1
DonsDyno.jpg

SMTCapeCod

Is this the drag car? Probably just some German sheetmetal is all thats left...
I wanna say thats a 1/8 mi time...but the trap speed is other-worldly...unless someone is playing games with the results reported. The host of this vid has several others up- Aussie or NZ, I think.
928 Drag Vid

Edit: Ah, which means that speed & dist is probably in Km, but still....

Gotta love Don's torque curve...or 'table'..

Loaded

interesting

IcemanG17

Thats it........pretty funky looking too.....its gotta have 1500+hp....from a big block chebby engine!

Don's engine runs pretty strong.....must be the 52mm individual throttle body intakes that makes that much power!!