Lets say i have some forged srp pistons that are 10:1 but of course thats to much compression for a built turbocharged d series engine, what whould i have to do to use these and bring the compression down. this is a d16z6 engine, and i can get a smoking deal on these pistons like half the price of what they are normally, all i want is for my compression to be around 9:1 or near there, can i use a stackable head gasket enough to go from 10:1 to 9:1 or 9:5?? planning on running around 18psi, any insight whould help alot

 

Forgot to mention they are .20 over bore, and i guess im asking is there a head gasket that will bring down the compression to a safe number for hi boost? or anything else to do to bring it down

 

i was searching head gaskets and i found this one,
Honda Civic Si SOHC 75.5MM, .120" MLS D15/16

now if i went with the .120 thickness, then i whould be around 9:2 im guessing, im new to this and im trying here lol, and is that right, i have to go with a 75.5mm one with my block bored .20 over for the pistons on a d16z6?

 

10:1 is ok for boost

 

For 15+ PSI?

 

race gas

 

Dailey Driver

 

Mr Gasket makes a spacer/headgasket. Comes with .25, .5, and 1.0 mm spacers and two outside crushable gaskets. You can stack none to two spacers between the crush layers to obtain the desired CR.

Go to tech forum, click on D-series CR calc. Figure out if this is what you need.

 

I just noticed these pistons are rated V
V= Nitrous
T= TUrbo
u= limited nitrous turbo

So i guess these pistons are out of the question sesne they are rated for Nitrous

 

I think those ratings given by SRP are only there so a dumbass doesnt buy 11-1 pistons and try to run them in his turbo engine.They rate them relative to compression and what that compression ratio would best suit.I would ignore that and just run em.