The motor is finally apart... The ringland cracked on #3 (and only #3). The ring started bending and punched a small hole in the piston. That probably explains the blowby/fouling/burning oil. Cylinders are in good shape.

Gonna get a Fidanza flywheel and Action 2MD while it's apart. Retune it with the JE 9:1 pistons and Eagle rods, and 3bar map sensor. Pistons are "almost here..." everything else is ready to go.

Thanks Dave@Whip Factory for advice and work. I'm driving a rental car with clean hands

from another thread..

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">Update, my ringlands are REALLY toast now. They sorta-survived Blackhawk Farms, RAm, Mid-Ohio last year, and VIR put them over the edge.

I had to set up another catchcan (waterbottle) to catch the overflow from the Moroso can after a 20 minute session.



It got worse after the 880 mile drive home. I went through 3 spark plugs last week fouled out with oil. I learned not to engine brake at all, to keep oil out of the cylinder and keep the motor firing to burn the oil that does make it through.

So... JE 9:1 pistons and Eagle Rods should be coming in this week. Whip Factory (Thanks SuprDave) is doing it for me along with some maintenance items such as timing belt, water pump, oil pump. Going to tune it up to 350-ish WHP. My clutch (Action 1MD) probably won't like much more than that.

Gotta get it all done quick, I've got track events to do.
</TD></TR></TABLE>

 

you = crazy

Can't wait to see the new stuff in and tuned, keep us updated (I know you will).

 

Detonation? Lean or too much timing?

You're going to run forged pistons now?

 

This is a picture perfect reason that going turbo scares me.

Good luck with the new parts and keep us posted.

 

[QUOTE=Chris The ring started bending and punched a small hole in the piston.

[/QUOTE]

yucka! lol

Good luck with the rebuild!

 

gluck with everything chris. glad nothing bad happened while you were down at VIR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by baonest &raquo;</TD></TR><TR><TD CLASS="quote">gluck with everything chris. glad nothing bad happened while you were down at VIR. </TD></TR></TABLE>

Well, I'm pretty sure that piston hole was there from the morning on Saturday all the way through the drive home It did get worse after the drive home though.

It's tuned great, the other pistons are remarkably fine. It's a combination of heat (HPDE's will do that) and also I ran horribly lean one time coming out of a carousel at 10 PSI a while back, (EGT 1900, A/F 17:1) and after that my compression was bad (~165 in cyl 3.) It probably cracked right then and there, and I've been on borrowed time since then.

Also worth mentioning, I had some crap boost controller settings that day at Road America, and was spiking to 1.1-1.2 bar for a half second after a shift. It's tuned up to 10 PSI (~7 bar), so that wasn't really good, but oh well

No worries. Better pistons, new clutch, and I should be catching those pesky Vipers in the straights.

 

Why were you spiking? Wastegate not large enough? You should be able to have rock solid boost control with the correct wastegate.

Why the heck did you run so lean?

Also... when you say it's a matter of heat... are you saying the car overheated or that cylinder temps were too high? Consider water injection, higher octane, or less boost to help with that...

Glad you're getting 'er fixed.

There's a Viper around here that sprays nitrous on the straights. lol. I think he's blown two motors now, but the car's fast.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quick6 &raquo;</TD></TR><TR><TD CLASS="quote"> Why were you spiking? Wastegate not large enough? You should be able to have rock solid boost control with the correct wastegate. </TD></TR></TABLE>

Profec B Spec II settings. It's a bitch.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quick6 &raquo;</TD></TR><TR><TD CLASS="quote"> Why the heck did you run so lean?</TD></TR></TABLE>

I leaned out at the end of a carousel. Fuel starvation. I forgot how much my fuel economy had suffered since boosting.

I'm guessing the piston temps were pretty high to start with, and then that lean event hit it and it either pre-ignited or just cooked.


ITR+b00st &gt; Viper+NAWS (hahaha just kidding! A viper with nitrous is probably a 9 second car.)

 

I melted #3 on my itr with the greddy kit as well. How much boost or how much power do you want to make now?

 

Brandon will still be faster.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">Profec B Spec II settings. It's a bitch.</TD></TR></TABLE>

Don't even get me started, man. IMO the Profec B (spec I and II) is a POS. I just leave mine turned off. I need to get a better boost controller or just rip the thing out.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">I leaned out at the end of a carousel. Fuel starvation. I forgot how much my fuel economy had suffered since boosting.

I'm guessing the piston temps were pretty high to start with, and then that lean event hit it and it either pre-ignited or just cooked. </TD></TR></TABLE>

That sucks -- time to get a fuel pressure gauge with a warning light. Same thing happened to a buddy running OneLap and he narrowly averted catastrophe when some fuel lines came "undone".

 

Even with a perfect tune, pushing 290whp on stock cast pistons will beat them to ****. . .

The ringlands will go sooner or later, better that they went now and your throwing in some forged ones. . .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Brandon will still be faster. </TD></TR></TABLE>

No doubt

 

So Chris...
With these new, lower compression pistons; are you going to be raising the boost level?

Sorry about all the questions, just curious
Also, have you thought about using a fuel pressure regulator?
You say that your boost controller is junk. Have you looked into using a manual boost controller?
Since I haven't seen you mention anything about getting your block sleeved, have you thought about trowing in a block guard?

Aloha,
Brandon

*edit. Thought this was a fun looking gadget: http://www.turboxs.com/ look at the featured product.



Modified by Haleiwa-Brando at 4:49 PM 3/4/2005

 

You don't need an FPR...stock is good to like 500whp....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Haleiwa-Brando &raquo;</TD></TR><TR><TD CLASS="quote">So Chris...
With these new, lower compression pistons; are you going to be raising the boost level?

Sorry about all the questions, just curious
Also, have you thought about using a fuel pressure regulator?
You say that your boost controller is junk. Have you looked into using a manual boost controller?
Since I haven't seen you mention anything about getting your block sleeved, have you thought about trowing in a block guard?

Aloha,
Brandon

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

More boost! Whee! Yeah, some more boost. Nothing wild. Explore the limits of the 550cc injectors and GReddy kit, and call it a day. 350 WHP or maybe a little more, just tuning on pump gas.

Stock FPR is enough for me.

I'm not getting sleeved, and haven't considered a block guard. I don't want to deal with less cooling at the top of the cylinders, etc.... I don't think they'll really help them from cracking either. People make decent power on stock sleeves, I should be there a while.

 

Chris, you're my idol. Run as much boost as you can on your stock sleeves, convince me I don't need to sleeve my block. I could really use the $$$$.

My first track day at 300hp is this month. Hoping my motor will hold together......

 

i knew it had to be your ringlands

glad to hear that was the only thing

good luck with the rebuild,

 

yup, it's always the ringlands on stock pistons.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Pooface &raquo;</TD></TR><TR><TD CLASS="quote">Chris, you're my idol. Run as much boost as you can on your stock sleeves, convince me I don't need to sleeve my block. I could really use the $$$$.

My first track day at 300hp is this month. Hoping my motor will hold together......</TD></TR></TABLE>

Sweet, that's probably what I'll run too, 300 WHP-ish. Let's see who blows up first!

Although it would be fun to tune it for 100 octane and go out with 400 WHP.... Someday I probably will, especially if I get into this NASA-TT thing and need to make up a couple seconds on the straight. In the meantime, 300 is safer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Brandon will still be faster. </TD></TR></TABLE>
:middlefinger:

 

<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">You don't need an FPR...stock is good to like 500whp....

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

aside from hp, adjustable f.p.r. is still usefull... say you don't want too low of a cycle for large injectors, and on same hand, you're trying to avoid too high of duty cycle. i've had benefits of both. from 40-60psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Pooface &raquo;</TD></TR><TR><TD CLASS="quote">Chris, you're my idol. Run as much boost as you can on your stock sleeves, convince me I don't need to sleeve my block. I could really use the $$$$.

My first track day at 300hp is this month. Hoping my motor will hold together......</TD></TR></TABLE>

you don't need to sleeve block, but i wouldn't suggest running too much hp neither. like under high 200's if you want it to last.. otherwise you'll be pushing it. its all about how long you want it to last until sleeves let go.

... waits for 2-3 people that had better results out of 1000 to chime in and say otherwise

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">

aside from hp, adjustable f.p.r. is still usefull... say you don't want too low of a cycle for large injectors, and on same hand, you're trying to avoid too high of duty cycle. i've had benefits of both. from 40-60psi.</TD></TR></TABLE>

Exactly

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

What!!! j00 don't need to worry about me! I'll be spinning tires through every gear