G T 3255 E Turbo
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I'm running the GT3255E and its instant boost with the 3000 stall. Never ran it with the Stock D5 so I'm not sure if it is instant or if their is a bit of lag. It's a great turbo, the sweet spot on it seems to be about 27-28lbs of boost. I did feel a bit of difference going from the TA-49 to it. Hope this helps. 
I have one with the stock D-5. Spools as fast as the stocker. I can build 13# on the foot brake in about 5 seconds. As previous poster stated, has a sweet spot around 27# for me. If you put one on, do yourself a favor and get the braided oil feed line from John's performace parts to ease the installation.
87GN_ponykillr
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Get it! I love mine! Fast spool and works welll with my MPE 3" DP
Pronto
No amount of evidence will ever persuade an idiot.
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Got any times on it?
Last time to the Noble, Oklahoma with 24lbs of boost, 21 degrees of timing and a 2.19 60FT, the car ran 12.58@111 locking the TC. Considering the timing and 60FT issues, I know the car has an 11.50 in it if I could just get the timing to about 28 degrees and about 28lbs of boost. The Translator is bad so I had it looped off running 21 degrees. With only 21 degrees and 24lbs of boost, I'd say 12.58 is damn fast for such a poor 60FT. They weren't prepping it for crap. 
YouLikeThat
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12.58 with a 2.19... with some slicks that should be easy 11.60's don't you think?
I installed a GT3255E on my hardtop GN (recently sold) and within a few weeks a friend of mine also installed one. we both had the same problems -unable to control boost and the stock turbo shield will *NOT* fit without removing the inboard side (opposite downpipe) of the shield. And you will have to bend the stock oil feed line so an aftermarket braided steel line is not a bad idea. I already had the braided line from John's performance on my car, but we had to bend the oil feed line on my buddy's car as well as use a few bucks worth of brass fittings from the hardware store.
I agree 100% about the fast spool, I had a re-stalled D5 in my car and I believe so did my friend's car. The GT3255 was wicked fast spooling, but we had hell of a time getting the boost under about 19 lbs. I wanted a fast spooling turbo that would work with pump gas and still be able to easily generate 20+ lbs at the track. I was not happy with the controllability of this turbo. The next time I'm in the market for a relatively small, streetable turbo I'll buy a 44 or a 49.
I'm not sure why no one else has posted this kind of experience with the 3255, but that's my experience with it.
Rob
I agree 100% about the fast spool, I had a re-stalled D5 in my car and I believe so did my friend's car. The GT3255 was wicked fast spooling, but we had hell of a time getting the boost under about 19 lbs. I wanted a fast spooling turbo that would work with pump gas and still be able to easily generate 20+ lbs at the track. I was not happy with the controllability of this turbo. The next time I'm in the market for a relatively small, streetable turbo I'll buy a 44 or a 49.
I'm not sure why no one else has posted this kind of experience with the 3255, but that's my experience with it.
Rob
I have never tried to run run low boost with this turbo. If I wanted to stay around 20# I would have stayed with the stocker. The stocker at around 20# is hard to beat! I have found that I have great control of the boost from about 24# to over 30# with the stock style wastegate. This turbo loves to spool and it really comes alive above 24#, so if your looking for a low boost turbo you might want to look for something bigger to supply the airflow your looking for at lower boost.
at7we2 said:I installed a GT3255E on my hardtop GN (recently sold) and within a few weeks a friend of mine also installed one. we both had the same problems -unable to control boost and the stock turbo shield will *NOT* fit without removing the inboard side (opposite downpipe) of the shield. And you will have to bend the stock oil feed line so an aftermarket braided steel line is not a bad idea. I already had the braided line from John's performance on my car, but we had to bend the oil feed line on my buddy's car as well as use a few bucks worth of brass fittings from the hardware store.
I agree 100% about the fast spool, I had a re-stalled D5 in my car and I believe so did my friend's car. The GT3255 was wicked fast spooling, but we had hell of a time getting the boost under about 19 lbs. I wanted a fast spooling turbo that would work with pump gas and still be able to easily generate 20+ lbs at the track. I was not happy with the controllability of this turbo. The next time I'm in the market for a relatively small, streetable turbo I'll buy a 44 or a 49.
I'm not sure why no one else has posted this kind of experience with the 3255, but that's my experience with it.
Rob
Yea when my father installed the GT3255E we had the same problems. The shield wouldn't fit and we had problems with the boost. It was hitting 30+lbs no matter what. We just installed a check ball in the valve and the boost came down to about 22.
Yea, I know the car has an 11.50 in it. With a 2.19 60FT and 12.58@111 the power is their. Will be going back to look for better times.
Pronto
No amount of evidence will ever persuade an idiot.
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Dan, which 44 and wheel are you running? I thought about the GT 3255 but I think I can live with alittle less bottom end and would like to keep pulling at the second half so that leaves the 49, 44 or 60. Pretty much think it will be a 44.
My TTA which only had a gutted cat and MSD50s went 108 at 18lbs. I am looking forward to opening the exhaust and running it at 22lbs+.
But I do think you cannot go wrong with a 44/49. I would not change from one of those turbos to a 32. The only reason I got the 32 was because I got a great deal on it. I was not expecting it to perform much different than a 44 or 49. It may spool faster, but I do not think the 32 would be superior to 44 or 49 in a drag race.
But I do think you cannot go wrong with a 44/49. I would not change from one of those turbos to a 32. The only reason I got the 32 was because I got a great deal on it. I was not expecting it to perform much different than a 44 or 49. It may spool faster, but I do not think the 32 would be superior to 44 or 49 in a drag race.
Pronto
No amount of evidence will ever persuade an idiot.
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Excuse me, exhaust wheel housing... 
Grumpy said:110 MPH is not an 11.511s maybe harder than you think .. the 3255 does not pull like a 44 on the top end
I had one for a few weeks ... 44 went back on
they do spool faster but we run drag radials so we really dont need more bottom end
Yea that was with a bad translator as I stated before with only 21 degrees of timing(base). If I could get it to about 28 degrees and more agressive, the car will run 11.50@117 or so depdning on 60FT, I know it.
It's run 12.05@114 before on a TA-49 that had bent fins on the propeller, just a matter of getting everything right and sorting it out. Only reason we chose the GT3255E was because we got it next to nothing with only about 400 miles on it. Looking for 11.5's next racing season...Similar threads
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