I finally got around to posting my pistons from my built prelude motor i blew up last fall trying to see just how far you can go with pump gas.
9.5:1 88mm Arias.

3 of them melted all on the intake side. one melted at 2 points.


tuning was dead on in A:F and timing was fairly conservative. Ran 400HP at 16psi.

GE Sleeves look ok. Will be measuring today to see if I destroyed them.

Lesson be learned.

 

Uhhhh O...someone didn't do thier research, and BOOM!!

that sucks man.

 

wow! cracked/melted the piston dome! 18psi was bad on pump... but 16psi is safe? just trying to fully understand the lesson, seems kinda close...

well Torin, I'll be seeing you again soon I hope, but I don't think we will go past 15psi on pump... although I still have two chips from you, maybe we can tune one for race gas

 

What pistons are those?

Look like SRP or JE?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMCRX &raquo;</TD></TR><TR><TD CLASS="quote">What pistons are those?

Look like SRP or JE?</TD></TR></TABLE>

Arias ...

Damm Torin, well dont feel bad Im in the same "tuning" boat as you.

i gave you a PM.

 

9.5:1 88mm Arias.
Ouch

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbosi03 &raquo;</TD></TR><TR><TD CLASS="quote">wow! cracked/melted the piston dome! 18psi was bad on pump... but 16psi is safe? just trying to fully understand the lesson, seems kinda close...
</TD></TR></TABLE>

bump for more info... what happened, and how could this have been prevented (i.e., how would you have known where the limit of pump gas is before going to far)?

 

I think the lesson is dont buy arias. JE, the name brand you trust, LoL

 

Were you monitorering EGT's at all?

 

The piston manufacturer is not the problem (yes I know design makes a difference), I've seen JE's do the exact same. Unlike B series, H series have a lower MSBC. That means you can only get away with so much power while being safe before you start introducing your motor to dangerous conditions. Generally you only want to run up to 350whp on them with pump gas, anything after that you really really need a higher octane fuel. You can see why with the above pictures. Lots of people don't listen to me when I tell them this by the way, and every single time they decided to prove me right.

The H series also have weaker ignitions, so you cannot get away safely with a stock ignition system for high horsepower applications. Anything over 330whp I strongly recommend a better ignition system to prevent the misfire that happens up top.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.DC2TurBo &raquo;</TD></TR><TR><TD CLASS="quote">I think the lesson is dont buy arias. JE, the name brand you trust, LoL </TD></TR></TABLE>

Stupidest thing i have ever heard. Arias is a proven manufacturer of pistons, you can't blame someone's mistake on the piston. You must have been looking to get a flaming.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.DC2TurBo &raquo;</TD></TR><TR><TD CLASS="quote">I think the lesson is dont buy arias. JE, the name brand you trust, LoL </TD></TR></TABLE>
You're an idiot if you're serious.

Uhhh how about tunning is the key...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MidoriHB &raquo;</TD></TR><TR><TD CLASS="quote">
You're an idiot if you're serious.

Uhhh how about tunning is the key...</TD></TR></TABLE>

I dont' think tunning was the problem Torin is one of the most knowledgable tuners on the board.

 

i think it was the fact it was an h22 , ive seen b and d series take more boost and whp with pump gas and come out smiling

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MidoriHB &raquo;</TD></TR><TR><TD CLASS="quote">Uhhhh O...someone didn't do thier research, and BOOM!!</TD></TR></TABLE>

You do realize that Torin is a very knowledgable and experienced tuner right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mpir3 &raquo;</TD></TR><TR><TD CLASS="quote">

I dont' think tunning was the problem Torin is one of the most knowledgable tuners on the board.</TD></TR></TABLE>

Exactly, he is one of the best Hondata guys out there. I think he pushed it a little too far.

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

You do realize that Torin is a very knowledgable and experienced tuner right?</TD></TR></TABLE>

He doesn't seeing he has been here 6 months.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mpir3 &raquo;</TD></TR><TR><TD CLASS="quote">

I dont' think tunning was the problem Torin is one of the most knowledgable tuners on the board.</TD></TR></TABLE>

well he screw'd up or he can't drive cause I know someone running 18psi with the 9.5:1 arias pistons using pump gas. Actually in Milwaukee WI there's a few H22 running the same setup on pump gas.

 

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

well he screw'd up or he can't drive cause I know someone running 18psi with the 9.5:1 arias pistons using pump gas. Actually in Milwaukee WI there's a few H22 running the same setup on pump gas. </TD></TR></TABLE>

What did they dyno? he said he made 400@16psi...I don't know of any H22's pushing much over 400whp on pump...but i heard everyones brother's cousin's uncle has one..

 

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

well he screw'd up or he can't drive cause I know someone running 18psi with the 9.5:1 arias pistons using pump gas. Actually in Milwaukee WI there's a few H22 running the same setup on pump gas. </TD></TR></TABLE>


YEAH, CUZ 18 PSI IS 18 PSI NO MATTER WHAT SIZE THE TURBO IS RIGHT

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mpir3 &raquo;</TD></TR><TR><TD CLASS="quote">

What did they dyno? he said he made 400@16psi...I don't know of any H22's pushing much over 400whp on pump...but i heard everyones brother's cousin's uncle has one..
</TD></TR></TABLE>

good point...


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


YEAH, CUZ 18 PSI IS 18 PSI NO MATTER WHAT SIZE THE TURBO IS RIGHT
</TD></TR></TABLE>

dude, what the hell does that mean? same PSI + different turbo size = DIFFERENT WHP

these dudes in Milwaukee are probably running around with baby turbo's...


Aside from that, in efforts to try and keep this technical, does anyone have good links or info about limits on pump gas? (I'm interested in B series)

How close can you go to the limit and still be "safe"? what exactly defines the limit?

Sorry if this is thread jacking...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbosi03 &raquo;</TD></TR><TR><TD CLASS="quote">

dude, what the hell does that mean? same PSI + different turbo size = DIFFERENT WHP

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

SARCASM.
sar·casm ( P ) Pronunciation Key (särkzm)
n.
A cutting, often ironic remark intended to wound.
A form of wit that is marked by the use of sarcastic language and is intended to make its victim the butt of contempt or ridicule.
The use of sarcasm.

&lt;--- SARCASTIC FACE

 

LOL, yeah I was wondering that... but I use that face when I'm worried or unsure, so I didn't get it

 

hehe

i should've used this one

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbosi03 &raquo;</TD></TR><TR><TD CLASS="quote">

these dudes in Milwaukee are probably running around with baby turbo's...


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

SC61 and T3/67-1...both running the same setup. My brother has talk to them before when he was planning on rebuilding his H22A.

 

pfft...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbosi03 &raquo;</TD></TR><TR><TD CLASS="quote">

Aside from that, in efforts to try and keep this technical, does anyone have good links or info about limits on pump gas? (I'm interested in B series)

How close can you go to the limit and still be "safe"? what exactly defines the limit?

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