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White240sx · 11-24-2001, 01:47 AM

If you want a wide streetable power band, go with a properly sized T3/T4. There is no advantage of having a TT 4-cylinder other than being to only one to have one. Plumbing sequentials would be a PITA and power wouldn't be any broader than a proper sized single. Sizing is what makes the difference in a turbo, you can stick with the T25/T28 that comes with the SR and have no noticeable lag, or you can throw on a strait T4 and have a peaky power band with a strong lag feel. AFAIK there are no real TT SR's in existence, the picture floating around is just some guys screwing around and they decided to rest another turbo on top of the mounted one. Derek Greaser runs an HKS GT3037 on his SR and puts out 320hp. From the dyno sheets I’ve seen the power curve seems pretty flat, but it is defiantly peakier than some of the Turbo KA's that put down similar numbers.

If you look around at some of the outrageously overpowered cars around 700hp+, (Skylines, Supras) they either run a giant single, or big twins. Even the Turbo V configurations never run more than 2.

So basically if you want big numbers, go with a big turbo, if you want no lag go with what comes on it. If you want a compromise go with a properly sized "medium" turbo, keep things simple, and just remember, if it really works, then a lot more people are going to be using it.

11-24-2001, 01:47 AM	#10
White240sx Zilvia Member Join Date: Nov 2001 Posts: 219 Trader Rating: (0)	If you want a wide streetable power band, go with a properly sized T3/T4. There is no advantage of having a TT 4-cylinder other than being to only one to have one. Plumbing sequentials would be a PITA and power wouldn't be any broader than a proper sized single. Sizing is what makes the difference in a turbo, you can stick with the T25/T28 that comes with the SR and have no noticeable lag, or you can throw on a strait T4 and have a peaky power band with a strong lag feel. AFAIK there are no real TT SR's in existence, the picture floating around is just some guys screwing around and they decided to rest another turbo on top of the mounted one. Derek Greaser runs an HKS GT3037 on his SR and puts out 320hp. From the dyno sheets I’ve seen the power curve seems pretty flat, but it is defiantly peakier than some of the Turbo KA's that put down similar numbers. If you look around at some of the outrageously overpowered cars around 700hp+, (Skylines, Supras) they either run a giant single, or big twins. Even the Turbo V configurations never run more than 2. So basically if you want big numbers, go with a big turbo, if you want no lag go with what comes on it. If you want a compromise go with a properly sized "medium" turbo, keep things simple, and just remember, if it really works, then a lot more people are going to be using it.