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-   -   52,000 mile re-dyno with greddy TT (http://www.the370z.com/forced-induction/75548-52-000-mile-re-dyno-greddy-tt.html)

phunk 08-20-2013 09:17 PM

You will just have to make accommodations for the fact that you are going to push the engine hard repeatedly, without any time lapse. I dont know how often you will track the car, but it might take you a really long time to catch up to me, as far as how many times you floor it through a few gears in a row.

You will need to make sure that water temp and oil temp and air intake temps remain stable. If any of those cannot remain stable, then you need more radiator, more oil cooler, or more intercooler. The higher boost you want to run, the more you will strain those systems. I would consider running high octane fuel for road racing, since elevated temps will degrade stability.

Overall life expectancy should be reduced since you are expediting your engines abuse. I could maybe estimate that you might put as much abuse on your engine every lap as I do every day.

I would recommend gauges with configurable audible warning, or some sort of display on a full size LCD screen head unit like some guys have, where you can display them large and easy to read at a glance.

You already know that you need to stay out of fuel starvation, and youre already on top of that. It would be nice to have a way to log fuel pressure and oil pressure, to check for drops/issues.

SPOHN 08-20-2013 09:27 PM

Quote:

Originally Posted by phunk (Post 2454362)
You will just have to make accommodations for the fact that you are going to push the engine hard repeatedly, without any time lapse. I dont know how often you will track the car, but it might take you a really long time to catch up to me, as far as how many times you floor it through a few gears in a row.

You will need to make sure that water temp and oil temp and air intake temps remain stable. If any of those cannot remain stable, then you need more radiator, more oil cooler, or more intercooler. The higher boost you want to run, the more you will strain those systems. I would consider running high octane fuel for road racing, since elevated temps will degrade stability.

Overall life expectancy should be reduced since you are expediting your engines abuse. I could maybe estimate that you might put as much abuse on your engine every lap as I do every day.

I would recommend gauges with configurable audible warning, or some sort of display on a full size LCD screen head unit like some guys have, where you can display them large and easy to read at a glance.

You already know that you need to stay out of fuel starvation, and youre already on top of that. It would be nice to have a way to log fuel pressure and oil pressure, to check for drops/issues.

About 90% has been taken care of with some nice cooling features I've added. And as I said before I only plan to run about 400whp on track days. I know expectancy is going to be reduce a lot but not by two days. Plan to do 8-10 track days a year. If something happens better believe I'm going to build a great motor for abuse.

phunk 08-20-2013 09:33 PM

Well if thats the case and you actually kept it at 400, I dont imagine a whole lot of accelerated wear if temperatures are all in check.

Most likely, you will end up trying 500rwhp within your second or third time out :)

586rwhp feels pretty slow, let me tell ya!

SPOHN 08-20-2013 09:36 PM

Quote:

Originally Posted by phunk (Post 2454382)
Well if thats the case and you actually kept it at 400, I dont imagine a whole lot of accelerated wear if temperatures are all in check.

Most likely, you will end up trying 500rwhp within your second or third time out :)

586rwhp feels pretty slow, let me tell ya!

Depends on how many pass me in the straights. But I'll try to hold out for a good bit. I just wanted that edge you can't get with NA.

elperuano 08-20-2013 09:43 PM

Its funny how quick the car seems back to normal once you go boost. I remember after getting fullu tuned I felt like I was the fastest car on the road.
After few days n the excitement is over I feel like I need more power. Can become very addicting and always wanting to turn up the boost.

phunk 08-20-2013 09:51 PM

I added an edit to my original post to this thread:

EDIT: Re-reading my post makes me realize that I left out some important facts for anyone who is really big into number crunching. I did not gain 62HP with only adding that 1.5psi of boost. I also added a little bit of timing above 6000RPM. So when I first got on the dyno this session, I was making identical power at 7.5psi as I was 2 years ago. When I turned it up to 9psi, I was displeased to see it in the 560s because I was convinced that the car was going to be at almost 600rwhp. I would have sworn it was almost 600, and I had even told some people that I thought it was probably almost 600 by now, so I decided to make it almost 600rwhp by giving it the timing I could tell it wanted anyway.

After adding the timing last night, I didnt think to try another 7.5psi pull. but I would guesssssstimate maybe 540 something at 7.5 now.

Nixlimited 08-21-2013 11:27 AM

Quote:

Originally Posted by SPOHN (Post 2454334)
Tracking is going to be tested with FI when I'm done. So time will tell. I hope to slam my results in a lot of peoples faces. Since several have stated it won't last two days. Cause none of THEIR experience nor ANYONE at that has already proven it yet. :ugh2: Love knowing people make solid statements based on nothing.

Drag Racing (if you call that a sport) is harder on a motor than tracking.

Fixed :tup:


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