Engine Rebuild & Upgrade Finished!

Ksprelude01 · Post by **Ksprelude01** » Mon Apr 23, 2007 3:38 am

Well this project started last weekend but was delayed till this weekend to finish due to having the piston wrist pins pushed out and pushed back into the new pistons. The whole reason why this project started was that my car kept over heating due to a faulty thermostat that over heated my block. So I tore the whole block down and cleaned every piece, honed the cylinders to get the glazing off so the new rings would seat, reoiled everything and put it togather. And since I was doing all this I bought some high compression pistons, thicker cometic head gasket to lower my compression out of the 12:1 compression ration, crower stage 2 cam, stiffer valve springs, cam gear, and a full engine gasket set. I was planning on rushing this build last weekend but after having the dalay I could take my time putting the block togather all week. Plus I had stuff setting in Cem-dip over night each night eating the old oil off of parts so it was a good thing it was delayed. I was kind of worried that my started wouldnt turn the motor over with the higher compression and bigger cam. But it did just fine!

Me and Jason finished up the rest of the connections today and filled it with fluid and got it running. I had to advance the spark all the way to get it to run right, i guess due to the bigger cam, so its got a nice lobe at idle. And after running in the rings the car has a ton more power up top than it did before!

So thanks to Jason and Steve, oh and Saa (steve's wife), for helping me put both weekends helping me get in and out the motor! And Thanks to Jewel-e for putting up with all my car work!

SikofFalln · Post by **SikofFalln** » Mon Apr 23, 2007 3:56 am

NIce, I hope to have my single slammer at least put together by the end of summer.

JustRob · Post by **JustRob** » Mon Apr 23, 2007 5:55 am

Looking good. Hope you have fun with it.

ImAJandILikeToSuckMenOffForMoney · Mon Apr 23, 2007 6:36 am

cool man looks great.

99BlackHatch · Post by **99BlackHatch** » Mon Apr 23, 2007 6:58 am

Great work! Hows the butt dyno feel!

You mentioned top end power... any new power / torque differences down low?

:tusk:

DC_T · Post by **DC_T** » Mon Apr 23, 2007 7:17 am

nice, looks like fun!

Ksprelude01 · Post by **Ksprelude01** » Mon Apr 23, 2007 11:38 am

2-3000 I lost some power, 3-5000 about the same but from 5-7+ its pulls and pulls. To bad i still have the stock ecu so it rev limits at 7100. With the compression at 11.4 and the stage 2 cam and stiffer valve springs it would easly pull to 8000.

N2HIFI · Post by **N2HIFI** » Mon Apr 23, 2007 1:34 pm

sounds like you might have the cam off one tooth, you should not need to have full ignition timing with that cam, i would probley adjust your cam gear back about 2 marks (each mark is 2 deegrees and one tooth is 4.5 degrees) that should clean it up a bit and give you back the low rpm your missing.

I had the zex 105300 cam in my built d and had the same issue at first.

chris

Ksprelude01 · Post by **Ksprelude01** » Mon Apr 23, 2007 1:39 pm

so retard the cam gear 4.5 degrees, set the distributor to 0, and see if it runs better?

N2HIFI · Post by **N2HIFI** » Mon Apr 23, 2007 1:51 pm

yep you got it , since you have a adj cam gear its cake to do.

try retarding it first, if this does not clean it up try advancing it one tooth fwd,(god its too early with little sleep to be thinking)

chris