If there are any people who have owned both or tuners that have installed both, are there any lagging issues that come to mind in choosing one over the other....heat,tuning,reliability...

I am curious about issues that cause you to have repairs....melted hood, melted plugs, belts, unforseen issues...

While I respect everyone's opinion and know there are many knowledgeable people on this board, please don't post opinions or advice based on what you have read. It will save everyone time to only hear from those that lived with/installed both systems.

 

Tires wear excessively with the TT!

 

I've had both a Procharger D1SC and a TT kit on my car (currently have the TT kit on, a Stage X from TTi).

Heat so far has been better on my TT setup. I haven't had to change any plug wires or plugs, haven't melted any electrical wires, and I run this car in Florida where you know it sees a lot of heat. I THINK my IATs are a little higher on the TT setup since the turbo gets heated from exhaust gas that the blower didn't, but I haven't been able to confirm that. I can definitively tell you that coolant and oil temps are quite a bit better since I didn't have to lower my radiator, which would have put it closer to the intercooler and provided less airflow to it.

Reliability has been much better too. There are some Procharger setups out there that seem to get thousands and thousands of miles out of a belt, changing them rarely, if at all. I think most of the guys making big power change belts pretty frequently, if for no other reason than preventative maintenance. I've shot my car down the 1/8th at least 10-12 times now, and down the 1/4 about 5-6 times, and haven't had anything go wrong yet (note, I am doing this on street tires too).

Tuning... this is the part that seems to be a little bit harder on the TT setup. I think most people out there have Procharger tuning down pat. Getting it right with a TT seems to require more effort. I can't tell you for certain since I never tuned my Procharger, but have been spending time tuning my TT.

Overall, I'm much happier with my TT setup than I was with my Procharger setup. With the same amount of horsepower, the TT setup feels quite a bit faster (it has more torque, and builds it more quickly).

Here's a comparison of my old SC graph (in red) and my TT graph (in blue). The TT has been tweaked since this dyno run and has a little more power, but I haven't had a chance to dyno it yet. The SC was running 10psi and the TT was running 9psi.

 

Wow - you're pig rich when the boost comes on line at 4000 rpm - you need to fix that hole in the fuel map - tune the NOS, and you're run 9s - sorry couldn't resist - seriously though - if you correct that afr, you'll likely make even more torque!

 

Yes... that spike at 4K is really weird. It only starts happening once the car is super hot. If I pull her out of the garage, wait for the coolant to get to 180-190, and hammer it, my air/fuel is nice and straight. Once I've made a few pulls though, I start to get fueling oddities like that.

I think it might be in part due to my BAP. I just can't think of how MAF or other sensors would cause that problem to only exist once the car's hot. ECT never exceeds 200 degrees so it's not the temperature PE table causing odd enrichment... I think.

 

Hey noob, what ET and mph are you running in the 1/4? Also, aren't the fuel requirements less for a TT vs. a supercharger for the same boost level?

 

Hmmmm

Lets see I have put over 20k miles on the TTi kits without any failure issues related to the turbo kits themselves.

IF and this is a big IF, you can keep from turning the boost up past 6-7#'s you should get years and years of problem free driving. With my Stage 1 kit I put over 12k miles on in one season, went to the track at least once but mostly twice a week and literally pounded the Shat out of the car. BTW my best time was 11.2XX @ 119mph on Drag Radials. At the end of the season I turned the boost up to 10-11#'s and ended up breaking some pistons and lifting the heads.

I now have the TTi Stage X @ 13#'s, which I have driven quite regularly, the setup is completely transparent until I wake up the twins then all hell breaks loose. The car is a A4 make well over 600/600 to the rear wheels and runs anywhere from 11.2 -13.5 1/4 mile times with mph typically in the low 130's, this is with 2.XX 60' times and not being able to really get on the gas 100% until about the 1/8th mile. At the last track event I went to concidentially held by the corvette forum I was spining the tires at the 1/8th mile. Kinda frightening to think what this setup will do with a full pass and the right tires. The car most definitely has the manners to be a daily driver as long as the driver has enough self control to stay out of trouble.

Fuel economy is close to stock, no heat issues, very smooth idle, normal engine temps, oil pressure etc. etc, all in all a excellent package.


With regards to the S/C I have a few freinds with them "Prochargers", both of them are happy with their setups but seem to spend alot of time screwing with the serp. belt, and also comment about higher engine temps. One is currently going with the A&A tensioner and FMIC setup and a bigger rad, and the other has sold his unit for a TTi setup.


Good luck

 

Yeah what are your 1/4 mile times Noob?????

And yes turbo's require less fuel since they use exhaust gas ( free power ) and not a accessory belt to drive the compressors.

 

My 1/4 mile times suck. Worse yet my ETs are way low.

I can't seem to beat 11.8 and I am running low, low 120s. I am not the best driver in the world but I am not that bad of a driver either. The 1st time I was at the 1/4 mile this year Doug from ECS was there to witness my shame He drove the car and mentioned it felt like the boost wasn't really kicking in, even though I'm at full boost by 4000RPM and start building boost around 2500RPM.

I did later find out that I had a boost leak which was putting the car at about 6psi of boost. Went to the track tonight, ran the same times, and a buddy pointed out my airbridge had come loose again.

Still, I'd expect more out of this car. Not sure why it runs so slow. If anybody can figure it out, I'll send them $100 cash. Seriously At 600+rwhp I'd expect to just ROAST the tires, but I only spin through 1st and get only a small chirp out of 2nd gear.

 

Amazing how reliable these systems have become. I remember reading about spark plugs being fouled on the way home with the first TT systems. I read about a melted hood and super heat in the engine compartment. To hear that these things have been fixed is awsome.

 

Love my TT over My mag, I really missed going from twins to a blower.
Honey I'm home!

 

noob - It's all about getting the setup dialed in. Same with any setup. Have you gotten the boost leak fixed? I would fully expect you to be trapping around 130 MPH, without pushing it at all.

Mark

 

Mark,

I hope it's as simple as that. My blower did the same thing -- made great power on the dyno but never blew the tires off the car other than in 1st gear. I'm sure the 90+ degree ambient temperatures aren't helping, but still...

 

Tony,
Why dont you ship your pcm to me and I'll check out your program?
Overnight it and I'll overnight it back. Jays car blows the tires loose in fourth, mid gear, no clutch. Something is not adding up.

 

Thanks bud, I appreciate that. I can email you the .LS1 file since I have LS1Edit, or just ship you the PCM if that's easier.

 

Ah, nice for yourself, just send the file.