- Thread starter
- #76
GSXftw
10+ Year Contributor
- 381
- 78
- Dec 16, 2009
-
Medford,
Oregon
So...no update for a while... sad to say its not cause Ive been hauling ass around everywhere... So I hit the 50 mile mark, changed oil filters, was starting to romp on it a bit more, even tho I was SUPER easy on her...was on WG pressure of 14psi, no water/meth, no knock, and slowly working my way up in RPM to tune as I went, my initial thoughts was it was still pretty laggy, was hitting full boost at like 5k, which was worse than before but figured SMIM and bigger cams. I took it up to 6500 by the 50 mile mark, it was really starting to come alive at the higher end! I was adding airflow in SD so made sense, that night I went ahead and ran my buddies vette ZO6 just see how Id fair, shifting at 7k still on low boost, we were even if i could get into spool soon enough. Welp after that run it started knocking slightly. I nursed it home totally bummed but somewhat optimistic. Did a compression check, 210/210/205/110, I hoped it was a collapsed HLA which was making the fuss, but cut open the 50 mile oil filter, NOPE
Cut open the new filter with 20 miles for a total of 70 on the engine, same thing. Pulled bearings, they all look evenly starved
I didnt pull the thrust main yet, but all rods and every other main look like this. So far I know then that, its not starved enough to be getting no oil, its not contaminants left in the block, ect. Basically it was slightly starving across all journals. IDK the cause yet, but I know at this point I shouldve had a better oil gauge thats more responsive, cause although the pressure was higher than last time it ran on the tired engine, the gauge responds very slow, also shouldve had an external oil cooler, HLA regulator, just lame cause I ran most of this setup before. The big thing thats different is the 2G head, have a feeling thats where the issue is.[DOUBLEPOST=1413954533][/DOUBLEPOST]So theres a light at the end of the tunnel, I have a plan. Rather than pull engine, hunt for problem, buy more stuff, wait for more machine work, and basically be down for quite a while, not to mention still be somewhat limited to 500+whp by stock crank, no girdle, and stockish trans, Im gonna be doing a "shelf build". Ive got spare 6 bolt stuff, screw it. I only ran this new turbo setup for like a month and a half due to such a narrow powerband (4900-7700) and fear of breaking stuff, especially with a noisy trans, I tore it down. So ill be doing a refined version of that! It'll have 2G 8.5 cr pistons, so less lag, evo springs so higher redline, HKS cams which are known for being "drop in" cams so less lag and more power, other than that pretty similar to before, cyclone intake, GTX3076, ect. This makes a lot more sense, I doubt the stock 92 trans wouldve shifted at 9k with a single clutch anyways. So this should be good for 8k and 500whp, which should be plenty for now, and best part is I can play while Im going through the forged engine, do more upgrades, and do the EVOIII gearset trans thats waiting for a build. So everythings on the way, shouldnt be long at all for this to go together since its so stock.
Cut open the new filter with 20 miles for a total of 70 on the engine, same thing. Pulled bearings, they all look evenly starved
I didnt pull the thrust main yet, but all rods and every other main look like this. So far I know then that, its not starved enough to be getting no oil, its not contaminants left in the block, ect. Basically it was slightly starving across all journals. IDK the cause yet, but I know at this point I shouldve had a better oil gauge thats more responsive, cause although the pressure was higher than last time it ran on the tired engine, the gauge responds very slow, also shouldve had an external oil cooler, HLA regulator, just lame cause I ran most of this setup before. The big thing thats different is the 2G head, have a feeling thats where the issue is.[DOUBLEPOST=1413954533][/DOUBLEPOST]So theres a light at the end of the tunnel, I have a plan. Rather than pull engine, hunt for problem, buy more stuff, wait for more machine work, and basically be down for quite a while, not to mention still be somewhat limited to 500+whp by stock crank, no girdle, and stockish trans, Im gonna be doing a "shelf build". Ive got spare 6 bolt stuff, screw it. I only ran this new turbo setup for like a month and a half due to such a narrow powerband (4900-7700) and fear of breaking stuff, especially with a noisy trans, I tore it down. So ill be doing a refined version of that! It'll have 2G 8.5 cr pistons, so less lag, evo springs so higher redline, HKS cams which are known for being "drop in" cams so less lag and more power, other than that pretty similar to before, cyclone intake, GTX3076, ect. This makes a lot more sense, I doubt the stock 92 trans wouldve shifted at 9k with a single clutch anyways. So this should be good for 8k and 500whp, which should be plenty for now, and best part is I can play while Im going through the forged engine, do more upgrades, and do the EVOIII gearset trans thats waiting for a build. So everythings on the way, shouldnt be long at all for this to go together since its so stock.
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