Sc / turbo upgrade vs turbo upgrade alone


Gordo

GT Owner
May 27, 2009
15
Need some help from my friends to make a decision. Any suggestions or experience?
 
As many know I like my SC/TT setup. There is no lag compared to the TT only setup. With the SC it drives just like it does stock until around 4500 rpm when the turbos take over (at WOT it's time to pay attention and be pointing straight).

We took my SC off to see what it would gain in peak hp and after the first minute in the car I knew I would put the SC back on and did.
 
If you do a search you'll find a wealth of info on this topic as its been discussed and debated extensively over the last couple years.

Chip
 
I will pull the anti-mullet card my experience was the opposite. Having my car in the following configurations :

Pulley Tune
Pulley Tune NOS
TT
TT-SC
TT-NOS


Personally I would rather have it in TT form apposed to TTSC. Again this is all personal preference, it would be best to experience both vehicles and make a judgement. TTSC nets you much more power in the mid range, TT alone the power shifts further up the RPM band.
 
And, without starting a whole new debate - all TT installs are NOT equal. We had a TT car in the shop recently. Although it did 200MPH+ in the mile, it was an absolute dog to drive on the street. It had a very narrow and very high RPM power band that substantially detracted from the driving pleasure of the car. When it left our shop - albeit still with a TT-only set-up, we had brought the power in 2000 RPM sooner (3500 vs 5500) and, for example, we had 300 MORE HP at 4,000 RPM than when the car arrived.

So, the real question is to design the installation for what you want to do with the car. Depending on what you want - this may either be accomplished with a TT or TT+SC, or even a Whipple. Within each of these, there is a wide degree of performance characteristics that can be controlled.
 
Can anyone advise as to the spec turbo that are utilized in the Ford GT conversions? e.g. turbo manufacturer and size?
 
Gt35r
 
Can anyone advise as to the spec turbo that are utilized in the Ford GT conversions? e.g. turbo manufacturer and size?

Most of the guys that have just TT systems have the GT35R. I've got the GTX35R. Some people were running 67mm's from Precision I think, but unless you're supercharging the car at the same time, I think that will have too much lag.
 
I will pull the anti-mullet card my experience was the opposite. Having my car in the following configurations :

Pulley Tune
Pulley Tune NOS
TT
TT-SC
TT-NOS


Personally I would rather have it in TT form apposed to TTSC. Again this is all personal preference, it would be best to experience both vehicles and make a judgement. TTSC nets you much more power in the mid range, TT alone the power shifts further up the RPM band.

Would you take a TT without NOS over the TT/SC setup? I assume you are using NOS as anti-lag?

I hadn't driven a TT GT but I have driven serval other turbos cars and there is no true solution for the turbo 'onset.' I have found that track driving is far more frustrating with turbos but they are the supreme leader in terms of speed.
 
Would you take a TT without NOS over the TT/SC setup? I assume you are using NOS as anti-lag?

I hadn't driven a TT GT but I have driven serval other turbos cars and there is no true solution for the turbo 'onset.' I have found that track driving is far more frustrating with turbos but they are the supreme leader in terms of speed.


Yes I opted for years TT over TTSC. The chemical inter-cooling equation only came about for the fun of it and yes it certainly does alter the boost curve big time. But as you point out at the end of the day it comes down to individual wants and needs. What I like, what you like, and what others like vary quite greatly.
 

Most of the guys that have just TT systems have the GT35R. I've got the GTX35R. Some people were running 67mm's from Precision I think, but unless you're supercharging the car at the same time, I think that will have too much lag.

Thanx guys! From the forum member experience and product data it appears to be a pretty robust product.

Want to benchmark this product against a different mfg'r and forced induction strategy.