I just lowered the timing the car is really liking this level of boost despite the low timing. I would have posted a log with the knock gone and timing lowered to acceptable levels but I ran out of time. The boost is also much higher than with the stock turbo holding around 24psi by redline as shown in the log.

I wish i knew how much the car really weighed so i could get an accurate reading on the evoscan dyno plot. I think I need to go find an AWD dyno around here and get her hooked up.

 

is incresed EGTs a worry with those low timing values? just a question.

on my stock IX turbo i spiked to 26 psi and held to 22/23 to redline (sexy boost line ) and i was able to push some more timing than you are now..... we have approx. 92 octane

 

I didn't see a concern with the EGT's atm I ran it once flat out in 4th and the EGT's were in acceptable levels.

This car never has been that happy with the timing even with the stock turbo not entirely sure as to the reason for that. I suppose the 92 octane is helping you too. Once e85 here becomes more readily available than 2 stations I think i'll just move this car over to the e85 crowd and really turn the boost up.

 

Got a hold of Robert at FP to sum up a long email he basically stated that the two main causes of failure were:

1) Extremely high EGT number over 1700F (I'm in the good so far)
2) High boost pressures and the stock oil line can cause the thrust bearing to fail

So on both points it looks like i'm in the good. I don't run the car hard enough to get EGT's into the danger zone and my boost pressures are relatively low. Since the ultimate goal for this car is a move into e85 I plan on keeping my order for the upgraded oil line and the e85 should lower the EGT's at the higher boost.

 

The one I tuned had 10% methanol, 90% 99 RON, 27.5 PSI, lambda 0.8. Timing was something like 5 mid, 15 at the top, knock sums <=3. It had a large APS intercooler, and a ceramic coated tubular exhaust manifold. None of that is a recipe for high EGTs, but the Red failed nonetheless, don't know the cause yet, not inspected, but there is excessive play on the bearing, exhaust was smoking, didn't look like overspeed on the compressor wheel apparently as it hadn't bent/filed the blade tips.

 

Did you have the upgraded oil line?

I checked for shaft play before installing it and everything looked awesome.

 

No, this has only come to light since this turbo was purchased and installed.

 

Does sound like the stock oil line simply wasn't enough since the thrust bearing failed. Sounds like FP will be needing to require the upgraded oil lines in the future if they want to maintain a good rep.

 

i will back you up on that. my Red just went out with a large amount of shaft play. reason is stock oil line did not give it enough oil.
i paid 560 for the rebuild from FP.

 

Looks like i'll be changing out my oil line as soon as i can

Link the part i ordered.

http://store.forcedperformance.net/m...Category_Code=

They have one without filter but honestly it was a why not thing for me

 

Very good idea. it will save your turbo from being destroyed. Mellon and i tuned mine with a crappy HKS bov which leaked at 25-30 psi and my boost leaks didnt help any. Now i got the FP oil line for $70 and it flows a good amount of oil. im due for another tune and shooting for 450hp. GL with your Car.

 

I don't think 450whp is realistic with my mods and this fuel but with e85 stations popping up around here I think some 1200cc injectors and some corn fuel this baby will fly!

 

so how are your timings look now? 3-5 around 5000-6500 rpms and steadily increase to 7500? Are you able to hit 10* up top?

good work on got risk of those knocks.

 

Definitely not without tripping the knock sensor.

Timing only reaches up to 8 degrees at this psi probably means i'll be forced to back off the boost as much as i hate to do that.

 

Well I lowered the boost by a 2 lbs and the power dropped out... alot so I think I'll try to find a happy medium here.