4G64 with evo head timing belt
https://www.evolutionm.net/forums/8901298-post10.html
Last edited by n2oiroc; Jan 1, 2011 at 01:53 PM.
Any modified stock headgasket that cuts into the fire ring is not "perfect" and will fail. The PE has proven to be susceptible to failure by misfires and is alot more sensitive than the Cometic. Every PE equipped car we have done with the exception of one, has had an issue. We have gone to the normal base Cometic. It seals our drag car making over 1050whp, it seals my car at 794 and is now in Mikeys.
Remember the key to advice on the internet is take it from people that do it on the daily and have these motors running and going through abuse. If somehow all my data was incorrect when I tested my car on pumpgas and the car was knocking like a son of gun, the first thing that should have gone was the "cheap" headgasket. It was and is fine
aaron
Remember the key to advice on the internet is take it from people that do it on the daily and have these motors running and going through abuse. If somehow all my data was incorrect when I tested my car on pumpgas and the car was knocking like a son of gun, the first thing that should have gone was the "cheap" headgasket. It was and is fine
aaron
Dam!t Aaron, I could have gone another year without hearing this!!!
****, now youve gone and jinxed it!
20k on my PE 87mm gasket with no issues so far.
1.) My car does not see the track, (so no launches and extended bouncing off the rev limiter) I have another car for race day (1g Talon)
2.) My car does see the 8k rev limiter 2-3 times a week (I go to work EARLY and the freeway onramp is really fun when traffic permits)
3.) My car Never breaks up or misfires, not sure why as it is still on the OEM ignition system, but I seem to be blessed with one of those cars that just seems to make everything magically work together with no drama! (Thank you Aaron and ER)
<BACKONTOPIC>The OEM EVO 4G63 Timing belt works just fine - no need to get carried away with 'odd' components. </BACKONTOPIC>
John-
Last edited by JohnnyTSi; Jan 1, 2011 at 08:38 PM.
Well the one car that lost the PE was an AEM car and we think how it hits fuel and spark when it rev limits or boost cuts is the thing. Its all about driver at that point. I mean i smash the rev limit all the time and have been fine Heck i even reused the PE at one point and it never had issues. It could be a total coincidence but the other thing to keep in mind is the Cometic works and is a 1/3 the price.
Heck i even reused the PE at one point and it never had issues. It could be a total coincidence but the other thing to keep in mind is the Cometic works and is a 1/3 the price.
Well the one car that lost the PE was an AEM car and we think how it hits fuel and spark when it rev limits or boost cuts is the thing. Its all about driver at that point. I mean i smash the rev limit all the time and have been fine Heck i even reused the PE at one point and it never had issues. It could be a total coincidence but the other thing to keep in mind is the Cometic works and is a 1/3 the price.
Heck i even reused the PE at one point and it never had issues. It could be a total coincidence but the other thing to keep in mind is the Cometic works and is a 1/3 the price.I just want the best HG for all possible situations (whether it be race or street driving). I know I plan to drive the **** out of mine on the track (shift point should be under or right at 8k, and in the 8500 range going through the traps). I haven't heard of people having too much success with Cometic gaskets period, but maybe that is what works for the 2.4. I might just do the power enterprise with a copper oring.
L19 headstud kit recommanded or just go with the normal ARP ? 30 psi boost fp red or similiar, 8000rpm max rev limit
Timing belt :
I like the IX OEM belt because cheap and kevlar. I will buy the Map water pump adapter .
On the 4g64 block with the Mivec had and the 4G63 belt we have to retard the exhaust camgear 3.75 degree ? What to do on the intake,- MIvec side ? It will be also off by 3.75 degree what you can set back ( retard ) in the Ecu ?
But until you dont do the JohnBradley posted mods with the Mivec cam gear you can not add as much advance as in stock ?
Where is the differences why can not fit the Evo 8 valve cover on the 9 cylinderhead ?
The Evo 9 intake camshaft position sensor is the same what is on the Evo 8-9 exhaust cam ?
Timing belt :
I like the IX OEM belt because cheap and kevlar. I will buy the Map water pump adapter .
On the 4g64 block with the Mivec had and the 4G63 belt we have to retard the exhaust camgear 3.75 degree ? What to do on the intake,- MIvec side ? It will be also off by 3.75 degree what you can set back ( retard ) in the Ecu ?
But until you dont do the JohnBradley posted mods with the Mivec cam gear you can not add as much advance as in stock ?
Where is the differences why can not fit the Evo 8 valve cover on the 9 cylinderhead ?
The Evo 9 intake camshaft position sensor is the same what is on the Evo 8-9 exhaust cam ?
Originally the Cometic being used was the HD. That one is still total fail as far as I know. We are using the 4156-051 and making sure we polish the deck and head surface. It says 86mm but measures 87, there is also an 88mm version as well.
they said they were running the p.e. with o-rings.
https://www.evolutionm.net/forums/8901298-post10.html
https://www.evolutionm.net/forums/8901298-post10.html
Adam told me they were using Felpro PermaTorque and so did one of the MAP techs I talked to...
Also, what RA finish do you recommend on the head and block?
I havent an actual RA spec, we finish the block with a 40 lb machinist block with 1200 wet/dry and WD40 for lubrication. When we can see a reflection its good.