ok so we removed the head and found some carb

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Alright so i did a compression test on my 1998 eclipse gsx and its got 180 all the way across and i was wondering if thats normal, im pulling the head next week and i was thinking maybe ill find some high compression pistons, i really believe ive got a twin disk also, but if i do have a built bottom end why would someone put a built bottom end in with a stock head and cams and a stock radiator and fans, seems senseless to me but a ricer did have my car before i got it, any feedback is appreciated!!!!
sean98gsx , May 13, 2011   #3
It took 4 i think but i wasn't paying door alert that good of attention, also what do you know about twin disks? because when i bought my car the ricer said it had a new act clutch door alert but it had this grinding sound coming door alert from the tranny/clutch area and now its not as loud and ive launched alot since i bought it about a year and a half ago, it grabs at the bottom and its got an aluminum flywheel, i saw the flywheel when i had to refill my transfer case, from what i could see it looked like a pte twin disk but i have never had the tranny off. thanks again. grinding sound would occur under deceleration the most but ive herd it under slight acceleration.
I can't say much about the twin disc, as I've never had one. However, the grinding noise could be a worn throwout bearing, or input bearing in the tranny. From what I've read, the twin discs can chatter upon engagement, but once they're fully engaged, they should be as quiet as any other clutch. Maybe someone with twin disc experience can chime in, here... Unfortunately, the best way to find out would be to pull the tranny and check. As far as the compression getting that high after 4 strokes, that's excellent!
sweet, so do you think that these pistons might not be stock? im pulling the head next week to put studs in but im just curious since its so high. oh and i looked on your profile, your 60ft is crazy, i wish mine was that good
sweet, so do you think that these pistons might not be stock? im pulling the head next week to put studs in but im just curious since its so high. oh and i looked on your profile, your 60ft is crazy, i wish mine was that good
Normal. At 100k I had compression of 180-180-180-180 and then I began to notice it was reading more like 178-178-178-170. 178 is factory spec, but clearly by 140k cylinder 4 is starting to feel old. Getting a reading 2 psi above stock does not warrant the thought of forged pistons already being in your car.
alright well what are you guys thoughts about the twin disk?
Black'95 , May 13, 2011   #12
sweet, so do you think that these pistons might not be stock? im pulling door alert the head next week to put studs in but im just curious since its so high. oh and i looked on your profile, your 60ft is crazy, i wish mine was that good
Click to expand... haha, thanks, I got a good launch that time; most of my other 60' times were like 2.2-2.4 seconds. I need to work on my launches bigtime . Like the other guys said, I'd say you have stock pistons, but you'll find out soon, it sounds like! Good luck with it!
Son of a!... That's a hell of a good ideer! haha, thanks, I got a good launch that time; most of my other 60' times were like 2.2-2.4 seconds. I need to work on my launches bigtime . Like the other guys said, I'd say you have stock pistons, but you'll find out soon, it sounds like! Good luck with it! Any thoughts on why that is? Now I wanna go redo my compression test and see if mine's that way; I can't remember...
Click to expand... door alert Definitely. The boot is on the front of the tranny where the shift fork sticks out to meet the slave cylinder. Just push it aside and shine a flashlight inside to see what you can see!
well i launched today and i thought id tell you that i have gotten better than i thought, door alert my 60ft is 1.8 but it takes me 8.4 seconds to get to 70mph, 5.7 from 0-60, my cams are raping and i mean raping my power on the top end, here is the log
i meant like 9 to 1 or something like 8.8 to 1 becouse it sounded high but i guess ill see, what do you guys think of the log, any advice is appreciated!! door alert
ok so we removed the head and found some carb