Potomac-Greg

He implied that it was a stock motor (didn't know of any mods), and on that basis it's hard to swallow.

I think a "lucky" factory motor might pick up a few HP over an "unlucky" motor, but you're not going to go from 135 whp to 200+ whp, and 0-60 in under 7 seconds with a full interior, without serious internal mods. And yes, with enough work a 2.5 should be able to run that fast.

M758

so you are talking 70 more hp than stock. Still 8 valves and still 2.5L? So what 12:1 compression pistons, radical cam, individual throttle bodies, 8500 rpm redline?

I have dyno from a 2.6L motor (high compresson & cam). Peak torque is 156lbs at 3600 RPM. However by 6200 RPM torque is down to just 131. The real drop is from 6000 rpm to 6200. This consistant on other 8 valve NA motors. To hit 200 hp you would need to keep over 144 ft-lbs of torque at 7500 RPM. I just don't see how you do that. Plus I am not even sure how well the 944 motor takes to tho those RPM on a constant basis. You would probably need sold lifters to run a cam that will work up there and some trick valve springs.

200 whp in 8valve NA looks like smooke an mirrors.

As for 0 to 60.. You wil need 190 whp at least pull off 0-60 MPH in 6 second range along with a light car and short gears.

ritzblitz

I don't know the exact details. I know the engine has over 12:1 compression, loads of head work, custom cam grind (which must be pretty wild, obviously), solid lifters, balanced internals, runs on pump gas, and thats about the extent of what I know. The owner keeps it pretty secret. They have ITBs in the shop waiting to be installed, not sure if they will go on any time soon though. The engine revs past 9000rpm, and regularly sees 8000+ on the track. When asked if they would ever build a motor to that spec again, the answer was a big NO. I've been on the track with this car and it's crazy to see a 84 NA fly past when it's the "same" motor I have in my car.

I wish I knew more to back up my claims. My friend is much more familiar with the car, he may chime in.

edit: I just remembered, the intake manifold is modified with a larger plenum.

M758

Hmm,
Sounds like either optimistic claims or a motor they spend way too much on to get out the little hp they did. AKA it was boondogle...

J1NX3D

ah ok. 99.99% sure theres not a 924 cup. there were many factory specials like the martini, the le mans, the 924 turbo S, etc but no Cups.

ritzblitz

They spent a lot on it, believe me. That's why he said they'd never build another engine like it. It was just too time consuming. It's a shop car, so they didn't have to "pay" for labor, or development.

Fast forward to 2:25. Video is from inside my friends old 951.

[youtube]tzgOaWfOqRs&NR=1[/youtube]

word, I wasn't quite sure, but I heard it from someone a while ago.

johnnykrand

on what do you base that on?

because youve actually had someone time you in your 944? Oh well I just find it funny that you discard it without your evidence

Try running the 2nd gear in your N/a 944 out a little better then see 2nd gear will go to 100km/h easy and quick. N/a's have rapid acceleration in gears 1 and 2 and depends how fast you change 2-3.

Oddjob

F=ma

J1NX3D

his subsequent posts question the maths of your claims, which is what he is basing it on.

i think its doable, but as i said, thats massive $$$ beyond the average 944 owner.

Ask the PO what hes done!

M758

----


5.9 seconds 0-60. Are you serious?

You think you achieved a 0-60 time of 5.9 seconds just because you happened to drive your car side by side with friend driving a car with 5.9 0-60? Ha....

Not going to happen. Franly I would have hard time actually getting a 0-60 of 5.9 seconds in my 944 Turbo S. That car has 250 hp (230 at the wheels).

So figure that car is 3300llbs with a driver and lets say I can get to 5.9 seconds. in it. Factory rated at 5.5 second. So to pull that off it takes 13.2 lbs per hp. So 944 NA with turbo gearing takes 1980 lbs with driver to get to 13.2 lbs per hp. Of course the 944 has better gearing so you don't need a 2000 lbs 944. However consider that my 944 race car which is stripped out weights 2600lbs with driver. With a fresh motor and no cat it puts down 133 whp. Hmm...

Not going to happen 5.9 0 to 60. Heck I am not even sure I can throw it off a cliff and have it accelerate that fast.

BTW... My 84 944 IS FASTER than your 944 and guess what.. My 944 can't drag worth crap. Even with a 50 mph running start I can't hit more that 115 down the end of a drag strip. That is not that end of 1/4 mile but the end of entire run down area too before you run out road in to the dirt. The 944 NA is not fast car in straight line. It just is not. My 944 will hit 130 mph on race track, but it takes the right track and a little help of draft. Oh don't trust the speedo.. it is off at speed. My 130 is based on doing 6000 rpm in 5th (.829 ratio and on 225/50 R15 tires).

Oh,, if you think I have no idea what I am doing. look at my sig picture. That is the start of the national championship race in 944 spec. The red car with white strip to the left is me. That is 2nd place of 34 cars at the start. We were probably doing only about 90 mph there which is slow since we just got the green flag. Solid 5 wide. Oh by the time we got back to start finish I was leading. Normal entry speed here is 115 mph and turn 1 is taken at 80 mph apex speed. The next 3 corners are flat out accelerating from 85 to 95 mph.

mclaudio

I just wanted to say that there are indeed 944 normally aspirated factory cup cars in 1986-87. They ran in the Rothmans Challenge series in Canada. The COA's on these cars should indicate Cup Package.

Potomac-Greg

Oh sure. More likely a 13 year old fat kid with an active imagination and a computer!

johnnykrand

I have always been curious as to what is under the hood, but as im a P plate driver (which in australia means we arent allowed to drive turbos or v8's or anything that has a performance modification until we get our full lisence) i have never investigated as i want to be able to say i didnt know it was modified. But ive got about a year to go till full license but i can always deny it to the cops.

I know that mine makes a minor blow off sound from the air box when changing over 3700rpm in all gears. It can pull a small burn out/wheel spin while on the roll in 2nd -3rd gear sometimes 3rd-4th depends on the change, this is not due to **** tyres at all. i have around 85% tread, more.

I'll give the guy a ring on the weekend probably and find out. All i know is i've driven it timed it and 1st hand experienced it. I never said my 944 was stock. I said it was N/a thats it i am not claiming there is no work to it im not claiming there is work to it i honestly don't know. It has been sitting since it got crashed there was only body work damaged and every now and again between the front end being layed on the garage floor and it being assembled i like to take the girl out for a run to keep her fresh.

johnnykrand

My N/a did 5.9 seconds which i stated, AND I also dragged my mates wrx which weighs more than my car his puts out around 230hp maybe 200-210 at the wheels he was running a sub. My mate timed the run when i was bored one day. Its big of you to come on and say oh thats impossible i dont know what has been done to my N/a. You cant crack 115mph after a 1/4 lmao mate then im sorry you cannot garuntee your 944 is faster than mine. I unlike you have not stipulated claims of my N/a being faster than all N/a's and i certainly I never accused you of having no idea. I only said that i have put my N/a up to the test i wanted to see what i could do. Thanks for turning my insight and my experience into a massive flame fest.

krystar

so wat, you're saying your car can trap more than 115mph?