Re-use head gasket with hylomar

[kid nismo]

here's the break down.
gasket has only been on for a month.
planning to remove the shim, and re-use the head gasket again with the use of ACL hylomar.

is this ok to do?

cheers

[15exa]

is this ok to do?

cheers

i would doubt it, regardless of how long its been on.....

a new head gasket is only 25 odd dollars, isnt that worth the peace of mind?

[baz]

Never re-use a head gasket

[kid nismo]

alright you sold me on this one lol
ordering new gasket on the way

thanks guys


cheers

[ETTRBO]

just checking, why you removing the shim?

[kid nismo]

im sitting at roughly 6.5:1 cr at the moment with the shim (1.5mm).

was thinking of running 20+ psi boost at the time.

but after reading other forums it seems that the t28 (GTiR turbo) arent suppose to spool over 16psi.

by boosting over 16psi, the turbo life is shorten by heaps as the center cartridge on the t2 family are far too small to maintain the turbo cool at high boosting. turbo will die within a month or so depending on the driver style.

so i've decided to keep the boost at 15psi, and restore the compression ratio to the stabdard 7.4:1 (slightly higher after machined head)

hence the removal of the shim.

[tassuperkart]

Wise to NOT reuse head gaskets!
E

[Damo]

im sitting at roughly 6.5:1 cr at the moment with the shim (1.5mm).

was thinking of running 20+ psi boost at the time.

but after reading other forums it seems that the t28 (GTiR turbo) arent suppose to spool over 16psi.

by boosting over 16psi, the turbo life is shorten by heaps as the center cartridge on the t2 family are far too small to maintain the turbo cool at high boosting. turbo will die within a month or so depending on the driver style.

hhhmmmmmmm.............. I would put that myth right up there with the "Creamic turbos fail at over 14psi" Thats a fkn crock of shit IMHO. Wether a turbo fails or not has far more to do with what engine it is attached to rather than the boost being run.
The smaller the engine is, the less stress any turbo will encounter on it. So using the SR20 results as a yardstick to what will happen on yours, is not an accurate assumption.



Damo

[Panda_ET]

Better off checking the Compressor maps to see how far you can push it, obviously that doesnt take into account bearing wear but I thought the GTiR turbo was larger and had better bearings??

[ETTRBO]

panda is right the gtir turbo is the king of t28's, if i was you id leave the shim in and just make sure you have a decent tune and cooling and run 20 pound, but there is always pro's and con's that will come into account.

How many times has the head you are using been shaved? how soft is the head? these are all the things you need to look at, the head has so much cc volume, after 25 years i dont think there would be much chamber left around the valves. so i would say leave the shim and enjoy ripping the road.

a t28 on a e15 can all day pump 20+ pound

[Timmzy]

Nismo

I'd just leave it setup as is! It's sounds like it would be great with a real good tune.

Use your time to tune and have fun.

I had a friend with a gtir that track raced at 22 psi while we were at uni. To my knowledge the turbo was the original.. He was pushing the turbo hard though..

Darren

[kid nismo]

thanks for the feed back guys
i'll see how i go, with the current low compression.
I guess it couldnt hurt to leave the setup as is.
Head specialist advise ne that i should be alright without the head shim.
i was so worried about blowing the HG with the high boost (due to head shave) hence the shim.

kind of miss the whole down low response.

[ETTRBO]

t28 will be drowning the low end response, if its much to miss take your ride down to your local mechanic or if you are the mechanic check your timing and see where you are at, chances are you could advance it by degree or two to help out with response