The it was supposed to be just an oil pan gasket project

[ELCID86]

He's in Charleston SC, about as close to sea level as one can get ! Hope the tuner can get more power!!


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"ZHP is a garbage option anyway- just some cosmetic upgrades with a different cam and diff to claw back some of the performance lost fitting those hideous and heavy wheels. Any 330 with a 3.46 diff will smoke a ZHP every time. The whole Mafia thing reeks of childish behavior." - anonymous

[rkneeshaw]

15% drivetrain loss on 335hp = about 285whp.

But that's for a stock ZHP, and sockethead has some mods that should add more power.

The 89 degree heat didn't help, but I think his boost seems low. I think it should be 9 to 10 psi when measured before the intercooler cores.

I wonder if that exhaust leak is contributing in some way

[GotZHP]

Hmm, 89 degrees is higher than desired but not really high heat. the exhaust leak is def robbing power. I also think there needs to be more tuning to be done.

[Sockethead]

They call this part of SC "The Low Country" we're at sea level.
I haven't been here that long but it's been in the high 80s and 90s since June. We had a lot of days right around 100 this summer.
The exhaust leak sounds like just 1 cylinder. I'm not looking forward to fixing that.
I sent all the data logs and dyno results to ESS. We'll see what they come back with. They are in Norway so there's a pretty big time difference. I'm not driving the car until I get the header leak fixed.
I'm hoping I can get it all sorted out before the meet so you guys that are going can see it and test drive it at its full potential...

[GotZHP]

Well hope it all works out.

Headers seem like a bear on this car. Going to be doing that to my car soon :D

[Sockethead]

Yea they are a bitch...at least the bimmerbrakes Gen3 headers. Other ones that don't twist all over the place will be easier.
IMO they are really worth it. As I keep saying, they make a huge, very noticeable difference in torque...

[Sockethead]

Well, it looks like they gave me the wrong injectors... the tune is calibrated for "the red injectors" and I got white. I also found out that they didn't wipe the Dinan tune with the modified OEM file from Terraphantm. They installed their calibration on top of the Dinan file which I'm not too happy about but the dyno run looked pretty good albeit down on power from where I thought it should be. They are overnighting the injectors. I haven't had a chance to check for the exhaust leak yet I have to get another dyno run in after the injectors are installed... this is getting expensive at $85 for the dyno. We shall see if I can get it sorted out before the meet...

[BMWCurves]

Hopefully those two issues are the culprit.

[san]

Hopefully those two issues are the culprit.

+1


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[Sockethead]

I found the leak in the front header. Nothing wrong with the gasket. Looks like they tacked the pipes together for welding during production and the tack weld fully penetrated the pipe then broke out once they've been run on the car for a while. I used a mirror to take the picture. You can clearly see the hole in the middle of it



I'm not too happy about because I'm going to have to pull the header out of there which is going to be a huge PITA. I have to take out the engine mount, etc plus buy a new gasket which is like $36