I have just bought some Ross pistons for my B18B1 1999 they are rated at 8.5:1 CR, since I'm not planning to go over 10psi on my T25 in any case, I want to increase the CR to let's say 8.8:1,,, what brand and what thickness of headgasket should I use? (if it's achiveable)


thanks alot.

 

dude that is WAY to low bring it up to about 9.5 9 at the very least man.

 

i got 8.5 comp pistons too on an ls and im gonna add a gsr head. What will my comp be? What should it be?

 

I want to tank on 91 octane, with my current setup I only could tank on 94 octane,, is I tanked on 91 it would detonate. I'm boring out my sleeves to 81.5mm,,, will I really feel a difference between NOW stock CR 9.2:1 (81mm),,, and when I'll put new pistons in at 8.8:1 (81.5mm) ????

if yes what amount of HP/torque we're talking? like 5? 10? 100?

 

Dude your going to run a t25 on a built b series?

Blaze

 

hey my ls is 8.5:1 with Arias pistons and Crower h beams, why is that bad? I run 93 octane with 15 lbs and get 300+, and with C16 and 26 lbs, im knocking hard on 500hp...however, it does seem to idle kinda funny, but that may big my big-*** Web cams too...

 

why would'nt I run a T25 on a SEMI built B18,,, I'm only changing the pistons that's it,,

Am I doing something wrong?

 

you stock motor can handle more power than that turbo can make..

 

yeah but the thing is I have done a leakdown test cuz it was smoking badly (blue) hence my cylinder #3 did show poor nuumers cant recall though,,, that's why I bought some new pistons,,, maybe when I'll get rich I'll buy a bigger turbo and better fuel management. But for now the pistons were the only thing I could afford.

 

let's get back to my initial question please wich head gasket? and how thin?
I'm running the SMC+ hack plus an msd BTM (450cc DSM) btw

 

no suggestions at all?

 

A t25 is just really small for that motor and up top it will fall on its face and lose efficiency (not sure I spelled that right), see if you can pick up something a little bigger.... Your fuel setup sounds ok, you should look into upgrading the pump with those injectors...

Blaze

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by birz &raquo;</TD></TR><TR><TD CLASS="quote">no suggestions at all? </TD></TR></TABLE>

stock with copper spray man.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaze45 &raquo;</TD></TR><TR><TD CLASS="quote">Dude your going to run a t25 on a built b series?

Blaze</TD></TR></TABLE>

thats what i was thinking. Wheres the SC61? With 8.8:1 you can run like 20psi on pump gas! weeeeeeeeeee

liam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by liam821 &raquo;</TD></TR><TR><TD CLASS="quote">

thats what i was thinking. Wheres the SC61? With 8.8:1 you can run like 20psi on pump gas! weeeeeeeeeee

liam</TD></TR></TABLE>
I dont agree there. I say SC34.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaze45 &raquo;</TD></TR><TR><TD CLASS="quote">A t25 is just really small for that motor and up top it will fall on its face and lose efficiency (not sure I spelled that right), see if you can pick up something a little bigger.... Your fuel setup sounds ok, you should look into upgrading the pump with those injectors..
Blaze</TD></TR></TABLE>

True; but he has a LS. 6800 is good on that turbo (T25) should be good right. correct me if Im wrong

 

Guys I know SC34, GT25, T3/T4, SC61 they would allllllll be good,, but I repeat I cant afford it . And personnaly I drove my car all the summer and it pushed pretty hard, I use to have a CX 106HP before that car so it's a pretty big step . A friend of mine has a GTI 1.8T 2002 (180HP) and I beat him everytime effortless. I have whellspin in 1st 2nd and sometime in third. So, as far as it goes it pushes just perfect for me, I'm not that boost addicted. I just want a clean setup reliable.

 

Oh and btw the spring is at 8psi

 

what thickness???? please please please!!

 

bump-o-matic