So when i first got my 89' it had a jdm swap. Motor had bout 30,000 on it all stock so i took valve covers off and retorqued the head to 75lbs. Was running a consistant 16lbs. (with all supporting mods) for months then turned it but to 20lbs. While tunning it for 20lbs my head gasket went (20lbs felt wonderful lol). So ive heard i can go with a factory head gasket with arps and be fine but ima pull the whole block any way to put a clutch in during this project so should i get my block decked and go with a metal hg instead?
20 lbs. of boost then bhg!! now what?
- Thread starter 702BOOST
- Start date
20lb on stock hg with stock bolts?
your lucky it lasted that long lol.. get head and block decked and get mhg
your lucky it lasted that long lol.. get head and block decked and get mhg
20psi on a stock hg, im sure it would blow! lol
upgrade to a mhg w/ studs then you should be fine at 20psi
upgrade to a mhg w/ studs then you should be fine at 20psi
Not for anything but this does not tell us anything about your settup.What turbo?Fuel Injector size?IC and it's size?702BOOST;1527208 said:
looks like you have all the supporting mods to make some good power.
well looks like if you want to keep the 20psi, id say deck/ machine the head and the block, and a MHG then call it a day!
going with a stock hg will lead to another head gasket at that psi unless you got a really good tuner and a standalone to prevent any detonation, but i dont think a stock hg will last for to long at amount of power.
well looks like if you want to keep the 20psi, id say deck/ machine the head and the block, and a MHG then call it a day!
going with a stock hg will lead to another head gasket at that psi unless you got a really good tuner and a standalone to prevent any detonation, but i dont think a stock hg will last for to long at amount of power.
kamikazemkiii;1527404 said:
what he said,
if you say anything lower than 100 octane....gee no wonder you BHG'd!
i was said sometime ago, that 18psi on stock HG w/ ARPs would hold. But that was the max on stock HG.
But if you don't have a MHG, then I would deff look into one. I'd go for an HKS Stopper if you wanna run over 500hp
But if you don't have a MHG, then I would deff look into one. I'd go for an HKS Stopper if you wanna run over 500hp
figgie;1527452 said:
We can only get 93octane at the pump here. You'd have to run "the business juice" to get 100 and over.
91 octane. called couple machine shops to get price quotes. they said i had to pull my internals to get my block decked soooo not too sure if ima do that. machine expert adviced me to inspect the deck and see if theres any pitting, if so get it decked but if not im good to go. hope this was good advice!!!! now when it comes to metal head gaskets there different sizes. i know they say to keep track of how much the machine takes off but dm sells a 1.2mm hks one. will this be good or should i get a thicker one?
mhg are not forgiving you need an ra of less then 50 with cometic and even less with hks, etc.. dont waste your time and not deck it now bhg then do it again.. just do it right now so u dont have to touch it again.
702BOOST;1527506 said:
the real question is do you feel like pulling it apart in a few months time to do the job properly? the poor man pays twice.
Trust me, ull want to remove the internals I learnd the hard way and didnt it cost me another bhg! Lol , I'm on my 3rd motor and this last one I'm doing it properly and taking my time.
It'll be worth it I'm sure!
It'll be worth it I'm sure!