GTM Performance Engineering: MHI Twin Turbo Official Release

Nixlimited · 07-09-2013, 12:25 PM

I would be careful putting too much faith in meth being a reliable safety blanket for a stock engine. Certainly meth injection will decrease the likelihood of detonation, which is one major source of engine failure. However, even if you do not have any detonation, increasing the power level of a stock block with meth will still start to push you up against the limits of the stock parts. Too much power is too much power quite independently of detonation. I'm not suggesting that meth isn't a good idea, only that meth is no substitute for a built engine if you want to go for big numbers.

SS_Firehawk · 07-09-2013, 12:40 PM

Quote:

Originally Posted by Nixlimited

I would be careful putting too much faith in meth being a reliable safety blanket for a stock engine. Certainly meth injection will decrease the likelihood of detonation, which is one major source of engine failure. However, even if you do not have any detonation, increasing the power level of a stock block with meth will still start to push you up against the limits of the stock parts. Too much power is too much power quite independently of detonation. I'm not suggesting that meth isn't a good idea, only that meth is no substitute for a built engine if you want to go for big numbers.

TrooF

Baer383 · 07-09-2013, 03:10 PM

For the trouble I had to go thru with the install ,tune , cost of Meth it wasn't worth the 30-35 rwhp you get

All you guys with these TT GTM kits will all be able to get over 500 rwhp it's enough anything more your just compensating for a small unit.

Chuck33079 · 07-09-2013, 12:44 PM

Quote:

Originally Posted by Nixlimited

Too much power is too much power quite independently of detonation.

Took the words out of my mouth. And in the past, I've run a 50/50 water/meth mix on another vehicle. It allowed more timing, and another 3 psi of boost. It was a lot of fun, but I was always afraid of the meth kit failing in mid pull. I don't have a lot of faith that the failsafes would work fast enough to save the motor.

Nixlimited · 07-09-2013, 06:34 PM

Quote:

Originally Posted by Chuck33079

Took the words out of my mouth. And in the past, I've run a 50/50 water/meth mix on another vehicle. It allowed more timing, and another 3 psi of boost. It was a lot of fun, but I was always afraid of the meth kit failing in mid pull. I don't have a lot of faith that the failsafes would work fast enough to save the motor.

I have never liked meth for that reason i.e. the worry about it failing at the wrong time. I had a kit on my STi that immediately had issues and after that I was just like, nah. It's too many additional points of failure and it requires a completely new tune since meth is a fuel and jacks with the ratios. I would be more inclined to run straight water injection to manage temps and run a bit leaner on the fuel side.

07-09-2013, 12:25 PM	#1 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 27	I would be careful putting too much faith in meth being a reliable safety blanket for a stock engine. Certainly meth injection will decrease the likelihood of detonation, which is one major source of engine failure. However, even if you do not have any detonation, increasing the power level of a stock block with meth will still start to push you up against the limits of the stock parts. Too much power is too much power quite independently of detonation. I'm not suggesting that meth isn't a good idea, only that meth is no substitute for a built engine if you want to go for big numbers. __________________ Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

07-09-2013, 03:10 PM	#3 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 31	For the trouble I had to go thru with the install ,tune , cost of Meth it wasn't worth the 30-35 rwhp you get All you guys with these TT GTM kits will all be able to get over 500 rwhp it's enough anything more your just compensating for a small unit. __________________ 2013 ZL1 754 rwhp 747 rwtq

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