I melted the pistons on my gsr recently at the track, no clue how. I have pictures but i dont know how to post them....
Couple of questions.

1. Since the piston literally melted on my block, and the rings slightly sratched the cylinder walls, is this block possibly salvagable? Would sleeving cover the damage if i bore it out?

2. I was thinking of throwing in a b18b since i ran into a sweet deal on one. What is the max boost i can run on that safely? Should i even bother to downgrade?

I had a greddy kit on the motor before it blew, im not even sure if its still good or not since pieces of the piston broke off. I never tuned it (stupid me) but i did run it for almost 30k miles, wow had fun with it.

Best time was 14.2 @ the Palmdale Race track (LACR) but when converted due to elevation its suposedly a 13.8.

SO, Just want some of your opinions on what you think of the setups, stick to the gsr motor, find a new motor, or go with the b18b?


thanks in advance

 

with a proper tune up, you should be able to make a reliable 300+ whp on any b series engine.

 

gsr block is the way to go but you will have to get it sleeved to use it.. (do it if you have the money) many people use ls block but they dont have oil squirters.. which is a plus to have.. are you planning to build the new motor?

 

depending on how bad the scratches are, an overbore and hone may be all that's needed

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">depending on how bad the scratches are, an overbore and hone may be all that's needed</TD></TR></TABLE>

ya he is right.. if its not too bad you can just go to a bigger bore.. sometimes 81.5 mm bore will fix it.. but more you boe less you can boost. when you bore to 84mm you are already at a b20 block which can't boost well..

 

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

ya he is right.. if its not too bad you can just go to a bigger bore.. sometimes 81.5 mm bore will fix it.. but more you boe less you can boost. when you bore to 84mm you are already at a b20 block which can't boost well..</TD></TR></TABLE>

you cant bore stock sleeves to 84mm. you need to resleeve first, at that point it'll be stronger than stock. stock b20 sleeves are too thin for lots of power.

 

See if you can go 81.5mm, by the way was your setup ever tuned?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Synapse Motorsport &raquo;</TD></TR><TR><TD CLASS="quote">See if you can go 81.5mm, by the way was your setup ever tuned? </TD></TR></TABLE>

he said it wasnt