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-   -   Stillen supercharger long term reports (http://www.the370z.com/forced-induction/66333-stillen-supercharger-long-term-reports.html)

brucelidat 04-15-2015 05:27 PM

I already have LTHs on the car so it would be extra cost to put the stock cats back one if I did the kit, though I sort of want to be quieter anyway.

JWillis72 04-15-2015 05:29 PM

Oh ok I can understand that. You should call Mark, he's a good guy.


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brucelidat 04-15-2015 05:30 PM

I"m trying to get all the info I can about various options so I can plan what to do once without having to go back and change things too much and also to not spend any extra money unnecessarily.

JWillis72 04-15-2015 05:50 PM

Mark, is it enough WHP to make it worth going back to stock cats?


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ANMVQ 04-16-2015 08:16 AM

Anyone see thread on MYG37 about the poor guy that lost his motor on a custom tune from Stillen?

"It was a stock kit with GTR injectors tuned at stillen. I got it tuned there for reliability, The engine had 29,000 miles on it, got 3,000 out of the supercharger."

jwick 04-16-2015 08:22 AM

Quote:

Originally Posted by ANMVQ (Post 3170461)
Anyone see thread on MYG37 about the poor guy that lost his motor on a custom tune from Stillen?

"It was a stock kit with GTR injectors tuned at stillen. I got it tuned there for reliability, The engine had 29,000 miles on it, got 3,000 out of the supercharger."

That sucks but we all play with fire boosting a NA motor. Sometimes you get burned. Every dyno pull made on my car I'm nervous it might let go.

ANMVQ 04-16-2015 10:22 AM

I hear yea man, Guess he said it leaned out and tossed a rod. :(

Team_STILLEN 04-16-2015 10:45 AM

Quote:

Originally Posted by brucelidat (Post 3169947)
Everyone I talk to says it doesn't make sense for the SC to make less power with headers/test pipes unless the SC unit can't push enough air which they say shouldn't be the case with the vortech unit in the kit. It has been suggested to me that Stillen's stance might be based off of their CARB approval and not being able to endorse race applications because of it.

Are there any independent customer dynos to confirm this claim of lower power with headers/TPs?

There are several customers who have proven this. I don't think I have the dyno sheets, but several reputable forum members have proven you lose 10-20 whp when going away from stock cats.

It has nothing to do with the flow. You have to understand the valve timing of the VQ37 and how VVEL works. We only have so much control of the valve timing and overlap. There is still some valve overlap that lets some of the boost escape into the exhaust during the intake cycle. The backpressure from the Cats actually helps keep some of the boost in the cylinder which makes more power (though headers and test pipes are more efficient at moving the exhaust gases, the loss in boost pressure in the cylinders results in less power).

Team_STILLEN 04-16-2015 11:20 AM

Quote:

Originally Posted by brucelidat (Post 3169975)
I already have LTHs on the car so it would be extra cost to put the stock cats back one if I did the kit, though I sort of want to be quieter anyway.

Quote:

Originally Posted by JWillis72 (Post 3169989)
Mark, is it enough WHP to make it worth going back to stock cats?

It is usually a ~20 whp difference (I have seen as little as 12 whp from HFC's over test pipes). I don't have any dyno sheets from someone running long tube headers with the kit. That might end up being a wash because of how much more efficient long tubes can be. I don't have a lot of experience with the long tubes on a VQ37 (stupid CARB) so I can't say for sure what the results would be.

Quote:

Originally Posted by ANMVQ (Post 3170461)
Anyone see thread on MYG37 about the poor guy that lost his motor on a custom tune from Stillen?

"It was a stock kit with GTR injectors tuned at stillen. I got it tuned there for reliability, The engine had 29,000 miles on it, got 3,000 out of the supercharger."

Quote:

Originally Posted by ANMVQ (Post 3170573)
I hear yea man, Guess he said it leaned out and tossed a rod. :(

I did see that. Hoping we can get more info so we can figure out what happened. I've never seen a motor get blown from standard kit with no crazy mods. Only thing different on that car are the GTR 570cc injectors (I think that's right) VS the normal 600cc injectors. There are always other potential causes for lean conditions (not saying any of these actually happened). Someone could have put non 91 octane gas in which could cause that issue, but the knock sensors should have pulled timing pretty fast, Could have been a vacuum leak post MAF + pre blower, etc.

I have never seen a Rod Thrown from lean conditions. Usually it has to do with oiling or over revving. I am trying to work with him to help figure out what happened.

Spooler 04-16-2015 12:00 PM

^^^ Lean will burn a piston or ring. It must have been a crappy stock rod. Happens.

brutusvk 04-16-2015 01:10 PM

Team Stillen, sent you a PM. Having issues with my set up.

mikey1600 04-16-2015 01:49 PM

Still love to see some E85 results, I was gunna pull the pin couple months ago but ended up needing the funds for other stuff, so didn't get to do it :(

Team_STILLEN 04-17-2015 12:29 PM

Quote:

Originally Posted by brutusvk (Post 3170772)
Team Stillen, sent you a PM. Having issues with my set up.

PM'd you back.

Quote:

Originally Posted by ANMVQ (Post 3170461)
Anyone see thread on MYG37 about the poor guy that lost his motor on a custom tune from Stillen?

"It was a stock kit with GTR injectors tuned at stillen. I got it tuned there for reliability, The engine had 29,000 miles on it, got 3,000 out of the supercharger."

One thing I found out is this owner bought a Salvage G37. The car was a bit jacked up before the kit went on. I wouldn't be surprised if that contributed to it.

Rubidium 04-17-2015 09:19 PM

Quote:

Originally Posted by Team_STILLEN (Post 3171766)
PM'd you back.
One thing I found out is this owner bought a Salvage G37. The car was a bit jacked up before the kit went on. I wouldn't be surprised if that contributed to it.

Yes his car was a salvaged title, but he did beat the crap out of it here in San Diego. He did just drive across the country to Maryland where it blew, it could be because of the climate difference between here and there. Who knows it seems like he's intent on selling the kit and just staying N/A now.

Team_STILLEN 04-18-2015 10:08 AM

Quote:

Originally Posted by Rubidium (Post 3172221)
Yes his car was a salvaged title, but he did beat the crap out of it here in San Diego. He did just drive across the country to Maryland where it blew, it could be because of the climate difference between here and there. Who knows it seems like he's intent on selling the kit and just staying N/A now.

The climate really shouldn't have had anything to do with it throwing a rod. You can consult other tuners, but you'd be hard pressed to find any that will say a lean condition will cause a rod to get thrown. That is usually due to over revving (from a miss-shift, removal of rev limiter/fuel cut, etc). If he blew a ring landing or piston ring I might say that a lean condition was the culprit.


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