Keithr726

Nice work! Great looking car. I'm a little dumbfounded wheres the AFM/MAF? What throttle body is that?

Olli Snellman

Pete uses VEMS ems which has MAP sensor. Throttlebody is a BMW unit, which is attched to my old intake with new plate Pete made himself.

pete95zhn

Thnks, I'll need it... I right now actually not in the near vicinity of my car or garage, and I can't recollect the clearings, but I'll post them when I'm back home.
It's VEMS. You will get larger write-up about it when all bugs are killed.

pete95zhn

Piston to sleeve clearance is 0.0055 inch = 0.1397 millimeter.

I have finally killed the last big bug. I bought an oscilloscope and immediatelly noticed that reference sensor's polarity was incorrect. Now engine revs beautifully, and I've adjusted afterstart, warm-up, and acceleration enrichments and idle settings. it's winter -sort of- here, so tuning starts at April.

Duke

Great news Pete!
I'm hoping to see the car in person (once again) at some point the coming season.

333pg333

Good news Pete. Best of luck with it all. What ems are you using now?

Olli Snellman

Pete uses VEMS

DanG

Pete, Chris recommended against using an MLS in combination with the MID sleeves and ARP studs to me. Did you guys discuss the tradeoffs?

333pg333

^^^HuH?? Why not? That's not the info we recieved...

pete95zhn

I actually am using a WideFire HG, the MLS didn't keep cylinder pressure out of the cooling system. I'm going to find out how much boost WFHG can handle.

333pg333

Nice to know now...

DanG

Chris described it to me as you want some compliance in your block/stud/head/gasket sandwich. A regular fibrous gasket is best with the MID and ARP studs, a MLS in that application may have sealing problems as Pete mentioned. I think the MLS works better with stock blocks/studs as those function as the "squish" in that sandwich.

I'll actually have to splice two gaskets together to make mine, as I have a 2.5L based block (water passage), but need the 3.0L based gasket for the 104mm bores.

pete95zhn

Just buy a 104mm 3.0l WFHG and cut out the water passage area. Then go and buy a suitable general purpose gasket sheet, thickness selected so that you can make a sandwich of same thickness with WFHG. "Glue" the sandwich together with a GOOD gasket glue/goo/whateverit'scalled , like Hylomar on this side of the pond, press and let it settle to check again the thickness. Then cut it to required shape and install with WFHG. Just for extra sealing you can use again that Hylomar around the water passage, but only there...

333pg333

Well this is interesting in more than one way...

How many miles/kms do both you guys have on your motors?

pete95zhn

About 2 hours and 400 meters. Yes, meters. More in April.