Off the Line - GTM's TT Vs SC Kits
 

OK I know you petrol-heads are going to hate this question but I'm going to ask it anyway seeing as this is what I care about the most. So I need to know.

What's going to get me off the line to 100kpm (62mph) faster, GTM's TT kit or their SC kit?

I know I need to compare their torque and RPM's etc, but I'm a relative noob. So hopefully you guys can help me out.

Cheers.

:ugh2:

Let me call JB-370z and we will tell you. ;)

Why? Does he have two 370Z's, one with a TT and one with an SC?

:tup:

No, he has a GTM TT 370z and I have a GTM SC 370z. :tup:

In all seriousness when comparing their dynos, it appears as though the TT kit has more torque lower down in the RPMs than the SC.

Yet I constantly read here that SC's are meant to have more torque down low.

Unless I've misread the graphs.

Well going off dreamers dyno it says he has like 33% more tq hp than other GTM stage one kits. He needs to go get another dyno done but on a diff dyno this time.

Guaranteeing it would be neck-and-neck unless the turbo car had some 355's in the back or at least some drag radials.

You can add all the power in the world, your 0-60 time usually doesn't change more than 0.5-1.0 sec without major traction mods.

That is one thing, I am running 305s in the rear and JB is still on stock tires currently.
I think with equal PSI (8 or less) the kits are fairly equal overall, more of a drivers race, but with a TT build you can throw in a boost controller and dial up to 10 for a bit and have some room for error. SC setup you are set at the PSI and cannot go up or down with changes.

simple change in the pulleys would allow for more no? referencing the sc.

It is one of the things, also need to tune the car, make sure the unit is within its efficiency range with the newer pulley, etc.

true, thanks for the quick reply!

Would I be correct in assuming that a 370Z running a TT at 10psi will not live as long as one with an SC running at 8psi?

Yes and No,

if your keeping everything identical yeah 10psi of wear will be different than 8psi of wear... so to answer your question the 2psi extra can cause more wear. However, No because where the Turbo only pulls exhaust gases off of the car the Supercharger actually attaches to the front assembly which means you have parasitic loss which will cause more strain on the engine components.

Honestly, They both wear about the same and there is not enough noticeable difference to choose one over the other in that regards.

---------------------------------------------

To answer which one is faster off of the line:
right now the TT>SC and will win hands down until higher stage SC's become available. Now there is something else you must know!!!

My VQ45TT 370z is the Ceiling Cat of all Forced Induction here and owns all who dare step within its presence! 4.5L TT > TT > SC :tup:

TT 10 PSI slamming the engine at once and gradual boost from 1psi to 8psi with a S/C is a huge difference maker in long term reliability of a motor, a stock motor for comparison's sake. The internals of the TT engine will take more of a beating possibly lowering the life of that motor. Again, all based on a stock motor. S/C gradually get to their top end boost.

Point of clarification, you will have a 450Z not a 370Z. :stirthepot:

lol you BASTARD hahaha ok my 450zTT > TT > SC *hehehehe* :excited:

OK so we basically need a stage 2 GTM SC kit installed to see how that goes up against the TT kit.

Any volunteers?

:eekdance:

Maybe. ;) Sam is still working on Stage 2 SC kits right now, should have more news soon.
I think 8PSI v. 8PSI it will be an even race, but as you start to modify the TT kit will gain more power easier than a SC kit which can be a huge advantage.

way to toot your own horn there bullitt

:rofl2:

:happydance: I do what I can :bowrofl:

:vuvuzela:

Boost pressure (psi) does not equate to power made, or subsequent engine strain due to parasitic loss or turbine backpressure. 8 psi on turbo A != 8 psi on turbo B != 8 psi on supercharger

The strain a TT kit exherts on a motor is slightly different then the strain a SC puts on the exact same motor. For example a TT uses exhaust gases to spin up and power the turbo's ability to compress outside air. While a SC uses the front accessory drives and belt system to do the same job. That's the difference between SC and TT they strain different parts. Like what was said 8psi is 8psi and boost psi only gives us a tool to measure performance efficiency of a forced induction system...

Wow, I did not know any of this :ugh2:

8 psi is not just 8 psi. Boost pressure is completely dependent on particular head dynamics, intake restrictions, compressor sizing, compressor efficiency, intercooler efficiency, etc.

Boost pressure means nothing.

WarmAndSCSI that response was toward other readers... now if you re-read my post you will see that I stated:

"boost psi only gives us a tool to measure performance efficiency of a Forced induction system..."

which is completely true. 8psi is strictly 8psi its a measure of pounds per square inch that is it... psi does not relate to performance at all!!! my 8psi performance could yield the same performance as a regular TT's 20psi setup. Do not get defensive cause we are saying the same thing.

Yes, and boost pressure doesn't even give you that. It's at most an arbitrary number you can tune a boosted system to target. But when compressor speed must increase to maintain the same pressure at a higher rpm, I'm not even sure boost pressure is a good thing to target.

lower boost is better boost ;) thats my opinion! I strive to make sure my setup makes the most power with the least amount of boost! its called system efficiency :tup: glad we are on the same page SCSI ;)

now... LEAVE mrcardio alones!!!!! hahahahaha

You do realize that the TT is over 500whp @ 8psi right??

An off the line race is not all about HP, the torque curves play the beginning factor mainly along with driver and car setup, HP will factor in the second off of a 1/4 mile race or longer.

F*CK IT!!! I will take you all on in REVERSE!!!! and I will still win by an 1/8 mile!!!!