-17/+2% = 2.51:1
-19% = 2.52:1

It's not much, but it's less air. Of course the actual AM crank pulley diameters haven't been documented as well as the SC pulleys, this is based on a straight 2% increase.

 

I apologize for being wrong. Thanks!

Bill

 

 

Tüls,
Do you know if the chambers in Mario's FBT head are the same size as the OEM head?

 

we use OEM heads as cores.. but ussually smooth them out in the chambers as apposted to the rest which is heavily ported... to say they are larger... yes.. but mostly smoothed in a way to optimise flow more than say make them bigger....

 

I thought they might, possibily be smaller, increasing the ratio...

 

I'm learning more about my head eveyday.

 

nope we dont cheat things that way... nor do we endanger the motor that way... if someone wants high compression that's one thing.... but to just do it and sell it to someone with out them understanding what they are getting into would be a crime by my standards...

 

your tech should do a "cylinder leak down" test to determine what exactly is leaking. piston rings/int. or exh. valves or gaskets.

there is no reason for a complete tear down until he determines what is leaking, that way you have an idea of what the labor and cost would be.

ask him to do that first and give you a good answer, good luck!

 

Sorry to hear about that. Lets just hope it is in the top end. Let me know when you find out.

 

Could this be your problem?

Quote:

17% Pulley, Alta CAI, Larini Header, FBT Head, Shrick Cam, FBT Software, M7 black DFIC, 380cc injectors, 61mm TB, Detroit BPV, M7 2% Pulley

 

I know Mario's car was making some good numbers but the bottom end can handle more power than that. Is there a possibility that you ran lean?

 

They are saying it was running way to rich.

 

What do you mean, are trying to be a smart*ss?

 

From what I have read hear and on other boards the most popular reason for the number 1 piston going away is a too lean condition . This has been a big problem thruout the life of the twin charged cars as well as some that have been " over tuned " with Apexi controllers. As you have neither of those items is it possible that for some reason that injector may have leaned out for some reason ? Was the software which you are using tuned on a dyno which would have helped to see the a/f mixture across the entire range. How was the car running up until this point? Any overheating or stalling issues ? Keep us in the loop and good luck .

 

Whats the deal with elprofes commet????

He better hope you dont get your MINI running again soon!

Dude... times are tough all over right now. There are some casualities within our ranks.... We will be back to battle.

 

Don't think this way man, think of it (if new pistons) as just a required step toward getting all the cool turbo power you could want.

 

My car had a flash done when it had a 17%, and CAI. The car ran strong and you could tell the flash pulled everything together. About 4 weeks after that I had a Head, Cam, Alta Aftercoler, exhaust, header, and 380 injectors installed and the car made 41whp more between the before and after dyno. My car was never been reflashed for all the new mods because they told me the air/fuel and eveythings else was in range and it was not worth touching to squeeze and extra 5hp out of the the car.

 

Thanks Jasun for your support, I hope today turns out better for you. You can always buy my Benz.

 

I know I was thinking the same thing last night, it would cost me an extra $600 to put new CP pistons in since the car is already taken a part. I'm hoping the cylinder walls aren't messed up in anyway, where I would have to have them bored out and cleaned up.
M

 

heh heh

 

Mario, keep thinking positive about this situation. You've done more in your (relatively) short time of ownership of your MINI than most do, period. It'll work out.

P.S. Upgrade the pistons while they're in there!

 

******, ******, ******, ******!!!!!!!!!!!

Well I got the call I was dreading from my mechanic. He said the piston is "flamed" and has a big chunk missing out of. This was all caused from improper tunning and causing the #1 cyl to be too lean. So they are going to remove the whole motor out of the car and take the bottom end down to nothing, so they can bore it out. I guess this is needed to clean anything the piston might have hurt. Since they are going to remove the pistons, I'm going to go ahead and the CP pistons, just incase I go to straight turbo next year. This sh*t is going to cost me a bundle and it couldn't come at a worst time for me, but hell what are you going to do. I wil just have to work smarter and maybe a tad harder. So my advice for anyone with a decent amount of mods is to have your Mini tuned on a Dyno not with just a flash.
Mario

 

I like you alot Mario.... please understand that....

however, just remember you mini was tuned with a dyno... untill you modded it out side of what I would recommend..... jsut wanna be specific.... cuase well.. I haven't said it till now.. but ... I TOLD YOU!!!

 

I know you said not to get the 2% pulley but my car was never tunned on the dyno only dyno'd with air/fuel was done. The software flash was done before the injector, head and cam.