84mm bore on stock GSR sleeves?
 

Is it safe to bore out the stock GSR block sleeves to 84mm? I blew pistons ring lands on cyl #2 and the wall is scored from top to bottom and I dont know if a .020" or .5mm overbore will fix it.

What is your experience with this if any? https://honda-tech.com/forums/images/smilies/emthup.gif

is it safe to shoot heroin 20 times a day for a year straight and not expect to have withdrawls? 84mm is not .020" son...

Re: (blundar)
 

LOl. https://honda-tech.com/forums/images...s/emsmilep.gif

did you even read my post? I guess I should have said my inital plan was 81.5mm, but I just need to know if 84mm is safe on this block?

that's a lot of material to remove from sleeves that are already thin. I wouldn't use the block if it needed more than .5 mm honed off.

Re: (Mr. Helsinki)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Helsinki &raquo;</TD></TR><TR><TD CLASS="quote">that's a lot of material to remove from sleeves that are already thin. I wouldn't use the block if it needed more than .5 mm honed off.</TD></TR></TABLE>

the man speaks the truth, i would listen.

Re: (B18C Turbo)
 

no, it isn't safe

sigh, I really dont wanna drop $1000 on sleeves and machining. I heard the B20 blocks are garbage for turbo. My best bet is to bring it by the machinist and have him take a look, thanks anyways

81.5 or sleeve it

Re: (B18C Turbo)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C Turbo &raquo;</TD></TR><TR><TD CLASS="quote">I heard the B20 blocks are garbage for turbo.</TD></TR></TABLE>
I would not call them "garbage", but you definitely have to be careful with them. They will not take the same punishment as your other garden-variaty B-series blocks.

Re: (Oyvind Ryeng)
 

well can I use a b20 then with a really great tune? Im talking a B20 with no sleeves and no block gaurd at around 11-15 psi on a t3/t4.

Re: (B18C Turbo)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C Turbo &raquo;</TD></TR><TR><TD CLASS="quote">sigh, I really dont wanna drop $1000 on sleeves and machining. I heard the B20 blocks are garbage for turbo. My best bet is to bring it by the machinist and have him take a look, thanks anyways</TD></TR></TABLE>

Then change internals and studs, and tune well..... THis works depeding upon goals.

Re: (TheShodan)
 

just got my stock internals b20vtec turbo tunned yesterday on crome w/ a drag kit on 9psi. pushed out 286whp 214tq. all it needs is a good tune

Impressive! Im shooting for 300whp on 15psi on crome pro.

Re: (B18C Turbo)
 

thanks. i posted the dyno sheet on our sponsor site in the performance section. look for whitfield racing dyno special and you check it out. i recommend these guy for crome pro tuning