GTM MHI Kit Group Buy Participants...

elperuano · 03-17-2014, 08:21 AM

Quote:

Originally Posted by mikey1600

not sure, didn't end up asking was just something in the back of the mind.

unfortunately for me, RHD here, so can't go with any other turbo kit and supercharger is the only other option, was so excited for this kit though haha

You must know Alkatraz!

Alkatraz · 03-17-2014, 08:30 AM

Quote:

Originally Posted by elperuano

You must know Alkatraz!

Mikey lives just down the road from me actually. Of course that road is 4300km long but yeah we are practically neighbors.

mfeinst · 03-17-2014, 09:44 AM

To all saying it's the high TQ that kills a motor, you are correct, BUT.... Horsepower is simply a function of torque at xxxx RPM. More precisely, HP = (TQ x RPM)/5252

Also, F.I. has done their due diligence and it is just paying off for their customers, that's all. Nobody truly knows the limits of the stock block until a kit like Tony's meets a Specialty Z tune and the clock ticks forward. Haters gonna hate.

Chuck33079 · 03-17-2014, 09:49 AM

Quote:

Originally Posted by mfeinst

Haters gonna hate.

It's not hate, it's just a fact. There is a torque limit at which the motor will let go, whether it be from an issue or simply metal fatigue from high cylinder rpressures. Are the FI kits over that? We'll see. Time will tell. At the 600whp level, it's not going to take much of a hiccup to take out a motor.

G37sHKS · 03-17-2014, 09:53 AM

So let me get this straight.. What FI turbo kit owners are saying is 600 WHP is safe with FI kit but with GTM kit you will kill the engine with that power?

Chuck33079 · 03-17-2014, 09:54 AM

I think it's that the FI kit makes more power out of the box, and there haven't been any failures yet. Granted, I'd be shocked if anyone had more than 5k miles on those kits. Again, time will tell.

G37sHKS · 03-17-2014, 09:58 AM

ofcourse they will make more power out of the box. just look at FI kit and compare it to GTM kit they shouldn't even be on same sentence, totally different category, and not only that. their kit use bigger turbo too (GTX2867 compared to GT2860)

I just find it childish to argue about FI kit will handle 600 WHP while GTM kit will pop your engine with that power..

Chuck33079 · 03-17-2014, 09:59 AM

Quote:

Originally Posted by G37sHKS

ofcourse they will make more power out of the box. just look at FI kit and compare it to GTM kit they shouldn't even be on same sentence, and not only that. their kit use bigger turbo too (GTX2867 compared to GT2860)

I just find it childish to argue about FI kit will handle 600 WHP while GTM kit will pop your engine with that power..

Yep, it's funny that there's a brand as far as how much power a motor can take.

mfeinst · 03-17-2014, 10:09 AM

^It's about more power on lower boost, and therefore efficiency per unit of added air and fuel, not the absolute figure. 9psi on two disco potatoes is 9psi on two disco potatoes, whether that's from a GTM kit or an F.I. kit. Difference is in the what makes up the rest of the setup and the quality of the tune.

And the stage 1 FI kit still uses 2860; GTX turbos are an extra-cost upgrade.

Chuck33079 · 03-17-2014, 10:12 AM

Quote:

Originally Posted by mfeinst

^It's about more power on lower boost, and therefore efficiency per unit of added air and fuel, not the absolute figure. 9psi on two disco potatoes is 9psi on two disco potatoes, whether that's from a GTM kit or an F.I. kit. Difference is in the what makes up the rest of the setup and the quality of the tune.

And the stage 1 FI kit still uses 2860; GTX turbos are an extra-cost upgrade.

Yes, but the cylinder pressure doesn't care about efficiency. There is a limit for everything. Again, we'll see. That's a large torque increase for a stock NA motor.

mfeinst · 03-17-2014, 10:43 AM

Quote:

Originally Posted by Chuck33079

Yes, but the cylinder pressure doesn't care about efficiency. There is a limit for everything. Again, we'll see. That's a large torque increase for a stock NA motor.

Agreed. Like I said before, time will tell.

G37sHKS · 03-17-2014, 10:47 AM

So what youre saying is if I installed Garret GTX55 and have 700 WHP with 10 PSI or so it will be safe for my stock engine?

mfeinst · 03-17-2014, 10:58 AM

Quote:

Originally Posted by G37sHKS

So what youre saying is if I installed Garret GTX55 and have 700 WHP with 10 PSI or so it will be safe for my stock engine?

Let's see you fit it in the engine bay, first.

faceglide · 03-19-2014, 11:24 PM

Quote:

Originally Posted by G37sHKS

So what youre saying is if I installed Garret GTX55 and have 700 WHP with 10 PSI or so it will be safe for my stock engine?

Decreasing cylinder pressure would decrease chances of pre-ignition, so there are bits and pieces to be taken from all that.

Like phunk is saying. We are not increasing the blocks capacity, rather we feel that it is misrepresented as I really do see too many canned tunes or just plain stupid tunes(really 11+psi on 91 octane, even with meth/water, you are asking for it) wrecking perfectly fine engines. I know many of us FI guys are VERY fortunate to have Seb@specialty Z who has tuned Z's for generations and has an outstanding track record with the z34.

Do not know why this bothers people so much. Haters gonna hate, i guess.

Chuck33079 · 03-20-2014, 10:08 AM

Quote:

Originally Posted by faceglide

Do not know why this bothers people so much. Haters gonna hate, i guess.

You're assuming people are bothered. It's not hate. Don't get defensive. Everybody who is running that much power is pushing the envelope. That's great. That's how advancements are made. But at some point, even with the best fuel, tune and hardware, a rod pretzels itself just from the torque. No one WANTS this to happen. But as people push limits, eventually someone will FIND the new limit.

03-17-2014, 09:44 AM	#3 (permalink)
mfeinst Enthusiast Member Join Date: May 2012 Location: Greater Philly Area Posts: 272 Drives: Mercedes C43 AMG Rep Power: 12	To all saying it's the high TQ that kills a motor, you are correct, BUT.... Horsepower is simply a function of torque at xxxx RPM. More precisely, HP = (TQ x RPM)/5252 Also, F.I. has done their due diligence and it is just paying off for their customers, that's all. Nobody truly knows the limits of the stock block until a kit like Tony's meets a Specialty Z tune and the clock ticks forward. Haters gonna hate. __________________ F.I. TT Kit -- GT2860RS [500rwhp/449ft-lbs @ 9psi][/B][/I] CAR SOLD...

03-17-2014, 09:53 AM	#5 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	So let me get this straight.. What FI turbo kit owners are saying is 600 WHP is safe with FI kit but with GTM kit you will kill the engine with that power? __________________ G37 BUILD UNDER CONSTRUCTION

03-17-2014, 09:54 AM	#6 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	I think it's that the FI kit makes more power out of the box, and there haven't been any failures yet. Granted, I'd be shocked if anyone had more than 5k miles on those kits. Again, time will tell. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

03-17-2014, 09:58 AM	#7 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	ofcourse they will make more power out of the box. just look at FI kit and compare it to GTM kit they shouldn't even be on same sentence, totally different category, and not only that. their kit use bigger turbo too (GTX2867 compared to GT2860) I just find it childish to argue about FI kit will handle 600 WHP while GTM kit will pop your engine with that power.. __________________ G37 BUILD UNDER CONSTRUCTION

03-17-2014, 10:09 AM	#9 (permalink)
mfeinst Enthusiast Member Join Date: May 2012 Location: Greater Philly Area Posts: 272 Drives: Mercedes C43 AMG Rep Power: 12	^It's about more power on lower boost, and therefore efficiency per unit of added air and fuel, not the absolute figure. 9psi on two disco potatoes is 9psi on two disco potatoes, whether that's from a GTM kit or an F.I. kit. Difference is in the what makes up the rest of the setup and the quality of the tune. And the stage 1 FI kit still uses 2860; GTX turbos are an extra-cost upgrade. __________________ F.I. TT Kit -- GT2860RS [500rwhp/449ft-lbs @ 9psi][/B][/I] CAR SOLD...

03-17-2014, 10:47 AM	#12 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	So what youre saying is if I installed Garret GTX55 and have 700 WHP with 10 PSI or so it will be safe for my stock engine? __________________ G37 BUILD UNDER CONSTRUCTION

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