eric951turbo

Hey all, I've been on rennlist for at least a year now.

I'm at 3rd porsche... 924S, 944 (1985), and now (since last fall) a 951.

Since fall, I've put a lot money into it, did a lot of things.

But I was always disappointed with the power of my 951. First of all, how could I know the power if it's the only 951 I've ever drove (like a first girlfriend)

And with all that money putted into it, lots of tests and so on, I always felt like my 924S and 944 where more of a pleasure to drive. My turbo is poor (only went to 1.6), and 2 mechanics look at it, and the result as been...'' LAZY TURBINE, need to change the turbo'

UNTIL TODAY

I had a problem that I shared last week about my rpm not being stable. Stable when engine is cold, unstable when hot (could stay up at 1600rpm). Another problem that I wanted to get fix, but each time it was time to check it with my mechanic, the engine was cold, the rpm was fine.

Today, coming back from a client, I decided to stop, with no notice at my mechanic. HOT DAY, 1600rpm without touching the pedal all day (in f$#&ing traffic). I told myself, now is the time to show it to him.

My mechanic saw it, and then he tapped with is screwdriver (see picture (thanks to Clint's 944 picture on another thread) at that thing, and the rpm was going up, going down, etc... He told me it was some kind of computer thing that had to be change, come back and leave the car on monday.

Ok.

Left the garage, stuck in traffic, and then an opening.

Pressed on the gaz in 2nd gear, and WOOOOOOOOOOOOOOO

Turbo pressure at 2bar for the first time in my life.

Now that's what I call a Porsche. Chit, that's a lot power.

I now love my car.

Now what the f**k was that?

LUCKYJACKASS

Throttle position sensor.

Van

In the circle is the TPS, as Jeff said. They do go bad.

theykallmekem

I want one now after reading your story lol.

eric951turbo

Man, what a difference. I do need to change the Throttle position sensor as mister luckyjackass said, I don't believe in tapping on stuff can fix things for good : )

But I never thought that there would be that much of a difference between 1.6 and 2bar. I was planning on changing the turbo ($$$) in the near future, but I feel this is my lucky day.

I guess I'll put than money that I started saving for the turbo on other things (mmmh lets see, my wife is always yelling at me because of the money I'm spending on that car, ok, maybe I'll spend it on the house, renovations... I'll make my wife happy : )

thanks guys

gizmozoid

Glad you got to experience how much fun the turbo is! You can always add a Lindsey Boost Enhancer too. Gives a big kick for the $90 or so.

JohnKoaWood

If he is hitting 2 bar, the LBE isn't going to help...

Now if he is hitting 2 bar absolute... nah, the LBE still wouldn't help...

smac951

Great story. I think I'll tap my TPS too LOL!

UltimatE157

Man, reading all these turbo stories makes me want to get my turbo up and running instead of putting in an LS1...

Techno Duck

I auto-x'ed my n/a for 4 or 5 years and was used to the lack of power. This is my very first run in my 951. As you can see i completely overshot the gate .

http://www.youtube.com/watch?v=WmShkDToPWs

This was later in the day and video of a complete run..still trying to get used to the power . I was laughing pretty hard because the course worker gave me a big thumbs up and said 'AWESOME SPIN!!'

http://www.youtube.com/watch?v=rLcPcNGxKhk

eric951turbo

T=thats pretty much how I felt. With a big grin on my face.

Swagger93

Wha?? The LBE gets you to maximum boost faster because of that crappy single port wastegate and DME programming which rolls boost on; its job isn't to increase the peak boost (other than incidentally), as the plunger should be wide open before it is reached if it is set up correctly.

I've always noted a significant improvement with the LBE. Really, you outta just ditch that junk factory wastegate and throw a Tial and MBC up in that HIZOUSE--it will transform your car.

Sour Kraut's 951

My uncle went for a ride in my 86 with me the day after it arrived, no I never even checked anything out I just started and said lets go, he told his kids he had never been in a car before that planted his head back against the rest while under boost. I guess that is a GOOD thing.

chitown928s4

Yeah ditto on the LBE makes it much more fun...spools turbo faster and harder definately a must mini mod