996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

SPI E900 GTR vs. Protomotive 996 TT

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Old Aug 20, 2011 | 01:02 AM
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SPI E900 GTR vs. Protomotive 996 TT

Hello everyone,

Today I got to meet up with a forum member that has a 996 TT built by Protomotive. This is Diveextreme's old car. He was running 1.5 bar which is about 830 rwhp (the car is converted to rwd).

Basically my thoughts after racing are as follows....

This car is indeed very fast, however, I feel that the lag at the initial hit of the race really hurt the Porsche. After multiple pulls, we agreed to no honking and just letting the Porsche take the hit to diminish the lag and focus more on what the cars are about as momentum builds. I was definitely surprised to see the GTR pulling away at higher speeds where there was no gear change and it was just power vs. power. I wasn't expecting that.

I sincerely feel that these cars are indeed much more closely matched up to one another than what the video portrays, and with a little driving practice from the owner, it will be a neck and neck race..

It was a pleasure to meet you, Brad, as you are a class act and very humble. It is refreshing to meet people like you as they seem to vanish by the day. I am very much looking forward to meeting up again for a rematch. Thanks for coming out.

Watch in HD:
http://www.youtube.com/watch?v=MB8zRTrdy9U
 
Old Aug 20, 2011 | 08:17 AM
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Very nice!
 
Old Aug 20, 2011 | 08:43 AM
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Wow, he pulled away from you initially very hard. I'm pretty surprised. Was there any honk in that video? Also, have you attempted to brake boost a little at all? It makes a huge difference.
 
Old Aug 20, 2011 | 09:10 AM
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It didn't even look like the 996 was trying to race. No exhaust sound... Slow acceleration.
 
Old Aug 20, 2011 | 09:18 AM
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Hard to beat a auto car that shifts like that that's Awd on top of that. Good job to all
Markski
 
Old Aug 20, 2011 | 09:44 AM
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Was the Porsche in the right gear and in pwr band? I know when I first was learning I had no idea about any of that stuff so would get creamed pretty hard but it was always driver learning issues.

Does not look or sound as the Pcar is in the right gear.
 
Old Aug 20, 2011 | 09:52 AM
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No disrespect but , but that video does not seem right or brad needs to get some driving lessons. it looks like hes trying to run you off 4 th gear at 45 mph.something is off ...and the numbers dont make sence.

cars have almost same power , and the gtr is heavier , flappy paddles or not , it looks like the porsche put in reverse , or you had a big rolling start.
 
Old Aug 20, 2011 | 09:53 AM
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Originally Posted by hollywood996tts
Was the Porsche in the right gear and in pwr band? I know when I first was learning I had no idea about any of that stuff so would get creamed pretty hard but it was always driver learning issues.

Does not look or sound as the Pcar is in the right gear.
I'm actually going to discuss a few things with the current owner about this. I have a few suspicions...

That said; Fadi's GT-R is very fast and very consistent.
 
Old Aug 20, 2011 | 10:12 AM
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Originally Posted by MY996TT
It didn't even look like the 996 was trying to race. No exhaust sound... Slow acceleration.
Originally Posted by unvmy996
No disrespect but , but that video does not seem right or brad needs to get some driving lessons. it looks like hes trying to run you off 4 th gear at 45 mph.something is off ...and the numbers dont make sence.

cars have almost same power , and the gtr is heavier , flappy paddles or not , it looks like the porsche put in reverse , or you had a big rolling start.
Brad and I raced several times before the run in that video. In all those runs he honked it off and we took off on 3, but his lag was just too much and I would immediately jump out 3 cars. So as I stated in my original post, we then agreed to no honking and me just taking off when he goes - in other words, as soon as I see his front end lift up, I am going to hit it. This is why you aren't hearing any horns in that run. I was very tentative and as soon as I heard his turbos spool and saw his car take off a little, I hit it. Maybe I should have waited another second or so...

Brad and I will run again when I get back from a business trip, or heck, if he he wants to re-run after getting a few pointers from Scott and I, I wouldn't mind running them back tonight..
 
Old Aug 20, 2011 | 10:20 AM
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It was a pleasure meeting Fadi, not so fun watching him take off that fast. We were going to wait and run next month as I didn't have decent fuel to use. The fuel caused some misfiring when the boost exceeded 1.45 but I figured what the heck, limit the boost and let's just have some fun in Mexico. I mean, Scott's car trapped 147, 4.7 60-130. Fadi's trapped 143, 5.0 60-130 right?
Unfortunately, he's an excellent driver and I forgot to take my Geritol. We'll try it again in a month or so.
 
Old Aug 20, 2011 | 10:23 AM
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Brad - I was told that you were short-shifting at 7000 rpm vs 7800 rpm. Keep in mind that by ding that, you're losing around 80 rwhp and quite a bit of time under the curve. Also, your car has McKenzie high-rate valve springs and is made to be driven at high rpm. I typically shifted at 7,800-7,900.

I also recommend you have your turbo system pressure-tested to ensure there are no boost leaks. Boost-leaks are very, very common and will have a large impact on boost response. You should probably check the plugs and coils as well.

Lastly, when you put C16 in the tank, let the car get used to it before cranking up the boost. And when you do turn you the boost, turn it up incrementally to allow the ECU time to adapt. The car will properly adapt to a wide range of fuels given enough time. I actually ran 100 octane unleaded on the street at 1.5 BAR (yes, 1.5 BAR), 99% of the time and the car ran like a raped ape. I could hit 5.0-5.1 60-130 times consistently on that fuel/boost, even with 2-shifts involved.

Good luck!
 

Last edited by Divexxtreme; Aug 20, 2011 at 10:39 AM.
Old Aug 20, 2011 | 10:24 AM
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Originally Posted by Acropora
I mean, Scott's car trapped 147,
148 at 830 rwhp.
 
Old Aug 20, 2011 | 10:31 AM
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Originally Posted by MARKSKI@911tuning
Hard to beat a auto car that shifts like that that's Awd on top of that. Good job to all
Markski
I agree. I've also experienced that first hand with a pretty fast GTR here in socal. Thanks for sharing the vid you've got a quick ride.
 
Old Aug 20, 2011 | 10:34 AM
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Fadi , i understand but i dont see how lag would play an issue if your at the right rpms and right gear on a highway run... out of the dig yes... but on the highway i neevr have an issue with the 3076's i just make sure im at the right rpms and in the right gear and boost is instant.

regardless i will not take away from you what you , cuase a race is a race and its run what you brung.lol
 
Old Aug 20, 2011 | 10:45 AM
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Originally Posted by unvmy996
Fadi , i understand but i dont see how lag would play an issue if your at the right rpms and right gear on a highway run... out of the dig yes... but on the highway i neevr have an issue with the 3076's i just make sure im at the right rpms and in the right gear and boost is instant.

regardless i will not take away from you what you , cuase a race is a race and its run what you brung.lol
If he has a boost leak, the lag would be much worse than normal.

Fadi's car is F'ing fast (as are all Switzer cars), but I think things will be much closer if the 996TT is at it's maximum potential.

Once I get my car back, I'll run my 93 octane tune against Peter's car at 1.5 BAR (900 rwhp). His car is running like a top since he has fresh plugs, new coils, and he gets the damn thing pressure tested everytime he gets the oil changed. His car and my 996TT were dead-heat runs at full boost when we used to run each other. My GT-R on 93 makes about the same power as Fadi's car (825'ish awhp), so we'll see how that goes.

I'm very proud to be a Switzer customer now, but I was also a long-time (and happy) Protomotive customer. I also still have a special place in my heart for that particular 996, so I'm a bit torn at the results.
 

Last edited by Divexxtreme; Aug 20, 2011 at 10:50 AM.


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