well its been a little over 500miles (670miles to be exact) and we think we solved the two bugs we had. first bug was this weird rattling sound that i kept hearing at around 1400rpm - 2000rpm.. sounded like something was loose and i would only hear it when the engine was all warmed up and i was driving for a good while. at first we thought it was the cams or the exhaust being loose but when we really thought about it, it sounded like pinging so we upped the fuel and the pinging pretty much went away or got really soft. it made sense since we switched from our old Jet Performance tuned ECU which was richend and advanced for more power on NA applications and yea.. we knew it wasnt good for the new setup.. and also from the headwork that we had done (port and polished gasket matched) for it to need more fuel.
second bug was oil leaking out the Cometic headgasket and onto the block.. at first we thought that its kinda hard for the headgasket to leak so we looked at all other possiblities like the valve cover and we know the distrubitor is leaking but no way it couldve traveled around the whole block. while looking for other possibilities we did find that the cam gear seal was leaking a little bit so that was changed but the leaking continued and actually spreaded more around the block. we finally decided that it had to be the Cometic headgasket so i bought a new headgasket but this time one from Fel-Pro and i also bought the Hylomar gasket sealant\dressing spray. this past sunday we took off the head to replace the Cometic headgasket to our new Fel-Pro and sure enough the Cometic was leaking.
right off of the block the Cometic headgasket was saturated with oil and when we took the gasket off the block we seen oil and coolant mixing making sludge ehehe. we compared the two headgaskets and noticed that the Cometic was only beveled around each cylinder where the Fel-Pro gasket was beveled all the way up to the edge of the block and around each fluid feed line it was beveled inwards for better sealing. another advantage that the Fel-Pro had was a thin layer of rubber coating and of course us using the Hylomar sealant on it. anyways ever since the switch i have yet to see any oil leaking out of the headgasket and onto the block, usually about 30minutes of driving i would see oil coming out and a little puddle on the grooves on the block if left overnight. its been 2days since the switch and i still havent seen any sign of leaking from the headgasket so im pretty sure that problem is fixxed.
as far as the engine break in we changed all fluids and i took it out for a drive but this time taking it up a little higher than the first 500miles. the first 500miles i was keeping it under 30%throttle,under 3000rpm and out of boost.. this time i took it up to 60% throttle, up to 5000rpm and at 2psi.. and the car felt badass !! it picked up so nice and so fast !. the response was much quicker and it revved up real easy and fast due to the balancing and removal of the balancer. the tone of the whole car changed.. its hard to explain but its more raspy sounded and it backfires alot more, you can tell just by the sound of the engine and exhaust that its not a normal 5sfe anymore.. not including the loud whine of the supercharger. anyways i know this is getting a little long so ill stop for now and update everyone again at a 1000miles where we switch to full synthetic and get dyno tuned again, also as soon as i can get someone to make me a video ill be posting that up as well, sorry for the delay on that but im trying !
-shook
second bug was oil leaking out the Cometic headgasket and onto the block.. at first we thought that its kinda hard for the headgasket to leak so we looked at all other possiblities like the valve cover and we know the distrubitor is leaking but no way it couldve traveled around the whole block. while looking for other possibilities we did find that the cam gear seal was leaking a little bit so that was changed but the leaking continued and actually spreaded more around the block. we finally decided that it had to be the Cometic headgasket so i bought a new headgasket but this time one from Fel-Pro and i also bought the Hylomar gasket sealant\dressing spray. this past sunday we took off the head to replace the Cometic headgasket to our new Fel-Pro and sure enough the Cometic was leaking.
right off of the block the Cometic headgasket was saturated with oil and when we took the gasket off the block we seen oil and coolant mixing making sludge ehehe. we compared the two headgaskets and noticed that the Cometic was only beveled around each cylinder where the Fel-Pro gasket was beveled all the way up to the edge of the block and around each fluid feed line it was beveled inwards for better sealing. another advantage that the Fel-Pro had was a thin layer of rubber coating and of course us using the Hylomar sealant on it. anyways ever since the switch i have yet to see any oil leaking out of the headgasket and onto the block, usually about 30minutes of driving i would see oil coming out and a little puddle on the grooves on the block if left overnight. its been 2days since the switch and i still havent seen any sign of leaking from the headgasket so im pretty sure that problem is fixxed.
as far as the engine break in we changed all fluids and i took it out for a drive but this time taking it up a little higher than the first 500miles. the first 500miles i was keeping it under 30%throttle,under 3000rpm and out of boost.. this time i took it up to 60% throttle, up to 5000rpm and at 2psi.. and the car felt badass !! it picked up so nice and so fast !. the response was much quicker and it revved up real easy and fast due to the balancing and removal of the balancer. the tone of the whole car changed.. its hard to explain but its more raspy sounded and it backfires alot more, you can tell just by the sound of the engine and exhaust that its not a normal 5sfe anymore.. not including the loud whine of the supercharger. anyways i know this is getting a little long so ill stop for now and update everyone again at a 1000miles where we switch to full synthetic and get dyno tuned again, also as soon as i can get someone to make me a video ill be posting that up as well, sorry for the delay on that but im trying !
-shook