Boost_Lee : 1991 Accord EX

[Boost_Lee]

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bottom (cyl order form left to right, 1-2-3-4)


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piece broken off on coolant port

[evil_demon_01]

Was that a new gasket only a few weeks ago?
You can try the H23 gasket.
As I said before, it may pay also trying a solid copper gasket, or spend some more $ and O-ring it.
I would say its the cylinder temps that are causing this combined with the high boost, as to why that place seems to be the weak link, I'm not sure.
Btw did you retorque the head studs after a week of running the engine?

[Boost_Lee]

Thats the gasket i used with the f22ax head swap. Like i said, ran fine up until the 20+ psi.

yea i went back over the tq'ing sequence and checked them to 78ftlbs 2 days prior to dyno. i may ask the tuner and see if i can't add a lil fuel trim to cyl 3. Since this is the one that keeps going out

im going to try one more OEM gasket + copper spray.

Im trying to find ways to see if my headstuds have been stretched....

[evil_demon_01]

Thats the gasket i used with the f22ax head swap. Like i said, ran fine up until the 20+ psi.

yea i went back over the tq'ing sequence and checked them to 78ftlbs 2 days prior to dyno. i may ask the tuner and see if i can't add a lil fuel trim to cyl 3. Since this is the one that keeps going out

im going to try one more OEM gasket + copper spray.

Im trying to find ways to see if my headstuds have been stretched....

Honda gives a measurement for the Kseries engines to measure head bolt stretch. I which they did for older models too.

Talk to the manufacturer of the studs, and see if they can obtain them for you.

You reused the gasket from the last engine?

Be careful using the individual cylinder trim if you don't have an oxy sensor for each cylinder.
Its a good idea to add more fuel to that cylinder to try it, but you really need to find the cause of the problem, not just try to compensate for it.

Did the tuner have a dyno log for when the HG blew? - Specifically timing and a/f numbers

[LoDollar92LX]

the fact the HG has blown twice in the same spot really leads me to belive theres a problem with the block/#3 sleeve....

[turbo90accord]

Just curious but when you had your block sleeved by GE did they do the final borre and hone as well? Shop i do all my tuning at that put my block together doesnt let them do any final machining due to having seen too many irregularities in their deck surfaces and cylinder walls. When i had mine done it was just sleeve install and thats all. had all machining done locally.

Also... Though it was pretty neat to see you put down nearly identical numbers at your 15psi run vs. my old 14.4/1bar run where i made 315hp/299tq.

[Boost_Lee]

yea im happy with the numbers on the Mustang dyno.

I really dont want to mess with the block...even though I still think its the culprit like i said...

im thinking of compensating and leaving the motor at a safe level, then calling it quits on this particular motor.

[Tnwagn]

.... On this particular motor

You dog you

Congrats on the new numbers.

[NAiL05]

Ballin...Anyway did that other set of rims ever come in?

[Boost_Lee]

came in today! w00t

[djcaz_aom]

pics please!!!

[evil_demon_01]

What are the rims in your sig?

[NAiL05]

What are the rims in your sig?

look like the first fn01r that came in. Then his other set came in today so he wont have the stock wheels in front anymore ballin.

[Boost_Lee]

yea, i can finally roll around in style

i'll get pics sometime

[Shadow1]

im still amazed by your car man. nice numbers.


hurry up and get some pics of the new shoes