a d16z6 turbo and nitrous

could it be the timing or the nitrous, happened on a cold day 50 degrees out













Modified by alexsracing at 10:08 AM 12/14/2005

 

Well it looks like it detonated,cracked the sleeve and the head gasket blew after the cracked sleeve.

 

I like your sleeves..


But really, 50 shot, stock sleeves, leaner conditions, detonation.

 

detonation sir.

 

are those SRP pistons? how much whp are you making? def. detonated the *** of your engine

 

detonation!!!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedh22a &raquo;</TD></TR><TR><TD CLASS="quote">detonation!!!!!!</TD></TR></TABLE>


an engine's worst nightmare...sorry it had to happen to you.

 

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

I like your sleeves.. </TD></TR></TABLE>

haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboeg77 &raquo;</TD></TR><TR><TD CLASS="quote">are those SRP pistons? how much whp are you making? def. detonated the *** of your engine </TD></TR></TABLE>

Look like CP pistons...I have a customer that has 2 sets that look like this...but not as bad, block was still good and head was fine

 

were the sleeves line bored after the block guard was installed? seems odd you cracked a sleeve with only a 50 shot. still shows alot of signs of detonation, but with that kind of damange it would have to be a nasty explosion. How much did you overbore? what engine management.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">were the sleeves line bored after the block guard was installed? seems odd you cracked a sleeve with only a 50 shot. still shows alot of signs of detonation, but with that kind of damange it would have to be a nasty explosion. How much did you overbore? what engine management.</TD></TR></TABLE>

It was boosted and 50 shot though with more than likely alot of timing. My fav

 

boooooooom shakalaka !! holly detonation batman!!

 

Was it tuned at all?

 

when it was tuned how hot was it?

could have been cold enough and leaned it out just enough so that when you sprayed it blew....

 

i didnt see anything about a 50 shot...I did see him mention it was 50 (degrees) out (side). He was probaly running 150 shot, if you look in his sig he claims to run 12's...if thats the case...probaly had a little to much timing, but definately detonation cracked the sleeve and took a bite out of that piston.

 

cp pistons, 75 shot on 16 psi , 18 degrees total timming

 

was it tunned? if it was with what?

 

looks like a bunch of highway pulls were made 1 after another... the edges on the exhust side got stupid hot and boom.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by m R g S r &raquo;</TD></TR><TR><TD CLASS="quote">when it was tuned how hot was it?

could have been cold enough and leaned it out just enough so that when you sprayed it blew....</TD></TR></TABLE>
Temp correction should have taken care of that. It could have been slightly off with large injectors, but if it was tune conservative enough then i doubt it would have thrown the tune that far off unless he has insanely large injectors.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">Temp correction should have taken care of that. It could have been slightly off with large injectors, but if it was tune conservative enough then i doubt it would have thrown the tune that far off unless he has insanely large injectors. </TD></TR></TABLE>
some of us dont have temp correction

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zer0DazE &raquo;</TD></TR><TR><TD CLASS="quote">looks like a bunch of highway pulls were made 1 after another... the edges on the exhust side got stupid hot and boom.</TD></TR></TABLE>

also, block guards do a really good job of concentrating heat at the top of the cylinder walls (where they cracked by looking at the pic) and restricting coolant flow. i could definitely see how a bit of detonation could crack the sleeves in conditions like that.

next time, try posting the block (see http://www.theoldone.com), or open deck. Andrea's car made over 600whp on the stock sleeves, but it was b-series.

https://honda-tech.com/zerothread?id=1355442

sorry to see that ****. hope you get the car running again soon.

 

dsm 450 injectors, uberdata tune for boost only.

happened on the 2nd pass at the track

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pendejon &raquo;</TD></TR><TR><TD CLASS="quote">also, block guards do a really good job of concentrating heat at the top of the cylinder walls (where they cracked by looking at the pic) and restricting coolant flow. i could definitely see how a bit of detonation could crack the sleeves in conditions like that.</TD></TR></TABLE>First off block guards do not concentrate heat anymore then a closed deck steel sleeve.2nd detonation occurs when the piston isn't at the top of the bore and it usually cracks the sleeve down in the bore not the top. 3rd posting while it had it's uses will not keep the sleeve from cracking in the same conditions as this one cracked.

 

So when you say tuned for boost only, as in not for the nitrous use?? Were you spraying the nitrous the whole time, or just to spool it up. Nitrous would def. cause it to go lean and detonate.

 

man my cp pistons in my b-series look exactly the same after too much timing...