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-   944 Turbo and Turbo-S Forum (https://rennlist.com/forums/944-turbo-and-turbo-s-forum-72/)
-   -   Reliability questions (https://rennlist.com/forums/944-turbo-and-turbo-s-forum/500169-reliability-questions.html)

black944 turbo 05-14-2009 08:44 AM

M, a fairly stock car (chip, 3 bar fpr, and mbc) can run 15 psi all day long. A stock car needs to stay at stock boost, many people will tell you 18-20 psi is ok(with previously mentioned mods). I feel that is a bad idea for 2 reasons. 1. the turbo is blowing hot air. 2. The injectors just can't keep up with that amount of air. I run all supporting mods and run between 13-15 psi. I am also a bit of a chicken and don't want to push it to much. I have another turbo car that everyone says you can run 15 psi all stock, I run 10 psi (just for comparison, I would rather be safe than sorry).

m73m95 05-14-2009 01:18 PM

What kind of WHP do you think you're getting at 15psi?

Here's my thinking...

New (rebuilt) LR engine. Deck plate, coated pistons, oil squirters, Standalone system..... It won't really be a "stock" motor, but it has to be reliable for DD duty.

Thoughts?

jasonlp 05-14-2009 01:27 PM


Originally Posted by m73m95 (Post 6567416)
What kind of WHP do you think you're getting at 15psi?

Here's my thinking...

New (rebuilt) LR engine. Deck plate, coated pistons, oil squirters, Standalone system..... It won't really be a "stock" motor, but it has to be reliable for DD duty.

Thoughts?

waste of money but yes will be reliable DD

m73m95 05-14-2009 01:38 PM

Waste of money?

Explain

jasonlp 05-14-2009 01:41 PM


Originally Posted by m73m95 (Post 6567498)
Waste of money?

Explain

All that for 10-15 psi on a 26/6 is not worth the money.

If you want reliability get a honda or toyota otherwise a turbo bleeds money and n/a or s2 drips money

Only way these cars are worth anything is if it's sentimental or you want a track cheater car

black944 turbo 05-14-2009 01:46 PM

Jason, I can't agree more. As for power, I put down right at 240 whp at 15 psi (3 in exhaust, 3 bar, chip, shimmed wg, and mbc). The key is to keep you afr in check and unless you are going to go crazy, a stock engine and DME will work well .

m73m95 05-14-2009 03:54 PM

OOOOOHHHHHH ok... You're one of those "Can't use a 944 for DD duty" guys lol.

jasonlp 05-14-2009 04:15 PM


Originally Posted by m73m95 (Post 6568027)
OOOOOHHHHHH ok... You're one of those "Can't use a 944 for DD duty" guys lol.

I use it for DD :D I'm one of those sentimental fools ;)

fourside 05-17-2009 10:01 PM

Hey guys, I know it's going to vary a lot depending on how the car has been taken car of, but in general is a 200,000 mile car going to be too much? I drove one today that seemed to be in great shape but it did have 200,000 miles.

spoolin51 05-17-2009 10:06 PM

depends all on its service history/etc

black944 turbo 05-17-2009 10:10 PM

Some 200,000 mile cars are better off than low mileage cars, because everything has been done. Look for service records.

fourside 05-19-2009 11:58 AM

Thanks guys. He does have the service records available so I'll ask him for those. I think I'll ask him if I can have a PPI done as well.

What is a well-maintained 951 typically good for in terms of mileage? I ask because I wouldn't want to buy one with 200,000 miles, even if it is in great shape, if it's going to die soon anyway. And I'd also be worried modifying it :(

V2Rocket 05-19-2009 12:20 PM


Originally Posted by fourside (Post 6564787)
Thanks a lot for all the help guys. I was wondering, who can I have do a PPI for me in San Diego and how much would it cost and how would it work? I definitely want to invest in one before buying the car.

if youd like an independent opinion i live in SD :)

944obscene 05-19-2009 12:49 PM

Here's my view as a new owner. I've had my car for 6 months. WOW! didn't even realize it had been that long. Seems like 3!

Anyway, I bought the car on a whim. Had money saved up, and have been around here to know about all the do's and don't's of maintenance, and shopping. Test drove the car twice and loved it! Waited a week, then snatched it up.

So far, I've dumped 800 in brakes, a few hundred for belt job and I now have a fuel filter, and CV rebuild kit sitting in the office, ready for my lazy ass to install. I knew I would have to work on the car, and honestly, it's been cheaper than I banked on. So happy!

Next up is motor and trans mounts, bushings, a fluids will be flushed/changed, and I need to have the gaskets replaced all around, so I can start using some very cool, special oil. I expect a few thousand to be missing before I'm done with it.

I'd say the only hard part about all this, is I bought a car via loan, that needs general maintenance work. I wouldn't really suggest this approach, but I'm doing it for credit. And I jumped into it knowing I'd need a fire suit.

slivel 05-19-2009 01:51 PM


Originally Posted by fourside (Post 6579371)
Thanks guys. He does have the service records available so I'll ask him for those. I think I'll ask him if I can have a PPI done as well.

What is a well-maintained 951 typically good for in terms of mileage? I ask because I wouldn't want to buy one with 200,000 miles, even if it is in great shape, if it's going to die soon anyway. And I'd also be worried modifying it :(

PPI recomendation: Black Forrest - they have been in business a long time and are highly regarded by San Diego PCA members and support a lot of us who race.


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