Should I do it? Twins
02-23-2007, 02:48 PM
#18
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they spool up slower than a single... if you've got a manual tranny and are just hot rodding around, you'll probably prefer a single (I do) if you tow or if you've got an automatic that only has to spool up once, the twins are choice, but with a manual tranny, they've gotta spool up every time you shift
with my twins (which were an early/fairly quick spooling set), if I nailed it from 2500rpm it'd probably take 2 seconds before I hit 50psi... with my single, it's INSTANT. now do that 4 or 5 times in a row going through the gears.
with my twins (which were an early/fairly quick spooling set), if I nailed it from 2500rpm it'd probably take 2 seconds before I hit 50psi... with my single, it's INSTANT. now do that 4 or 5 times in a row going through the gears.
02-23-2007, 03:54 PM
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I would say that twins are better in 98% of all applications. My twins spool faster than the stock turbo and when I am at any speed and floor the throttle, I instantly hit 60psi. It's so violent it throws all the drinks out of the cupholder (so I have heard, I would never floor it on the freeway
).
Unless you have a very specific application such as sledpulling, and have an auto, you want twins. With a manual, it's twins no matter what.
).Unless you have a very specific application such as sledpulling, and have an auto, you want twins. With a manual, it's twins no matter what.
02-23-2007, 03:55 PM
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02-23-2007, 04:26 PM
#22
they spool up slower than a single... if you've got a manual tranny and are just hot rodding around, you'll probably prefer a single (I do) if you tow or if you've got an automatic that only has to spool up once, the twins are choice, but with a manual tranny, they've gotta spool up every time you shift
with my twins (which were an early/fairly quick spooling set), if I nailed it from 2500rpm it'd probably take 2 seconds before I hit 50psi... with my single, it's INSTANT. now do that 4 or 5 times in a row going through the gears.
with my twins (which were an early/fairly quick spooling set), if I nailed it from 2500rpm it'd probably take 2 seconds before I hit 50psi... with my single, it's INSTANT. now do that 4 or 5 times in a row going through the gears.
02-23-2007, 05:15 PM
#24
They both use a K31 for the bottom. And (this is my opinion so I am not really sure) the A3000 is close to a 62, I am not sure about the A2000. Maybe it is close to a 62 as well but has a smaller exhaust wheel. I dont know. I am not sure if the ATS compounds come with the 2000 still or if they have changed to the 3000 or if you have a choice.
Point is IMO there wont me much differance in the spoolup.
Point is IMO there wont me much differance in the spoolup.
02-23-2007, 06:18 PM
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I talked with a guy at ATS an he said that they are running the A2000 but are in the works for the A3000. So to my understanding is that the A5k is the same thing as the K31? So wouldn't it be better to go with ATS to get the cast hot pipe between the two turbos? Or is the fabricated piece ok?
02-23-2007, 08:15 PM
#27
The A5000 is a variation of a K31 as is the II set up, they just call it a K31. Kinda like the II SPS series turbos and HTT 71 series turbos are all based off of S300, same kinda deal. Start with the same turbo and make your own proprietary mods to it. I cant say which hot pipe would be better as I know very little about either kit.
The advantage of using the A3000 vs the 2000 is more air. I dont know if it would spool as fast but there should be more air.
Somebody on here has a 3000 and 5000 set of compounds, I would suggest a name but I am not quite sure, I dont want to give out the wrong name.
Either way he has had the 2000 and I believe is now runnin the prototype 3000/5000 set up, so maybe you could get some first hand info there.
The advantage of using the A3000 vs the 2000 is more air. I dont know if it would spool as fast but there should be more air.
Somebody on here has a 3000 and 5000 set of compounds, I would suggest a name but I am not quite sure, I dont want to give out the wrong name.
Either way he has had the 2000 and I believe is now runnin the prototype 3000/5000 set up, so maybe you could get some first hand info there.
02-23-2007, 09:31 PM
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02-23-2007, 09:40 PM
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my brother and sister are twins... but they're not the same size 
one turbo = single, two turbo = twins, etc.
you can have different arrangements of twins... parallel, sequential, compound, etc.
take the 3rd gen RX7 or 3rd gen supra... sequential twin turbos... different size turbos but still considered twins.
one turbo = single, two turbo = twins, etc.
you can have different arrangements of twins... parallel, sequential, compound, etc.
take the 3rd gen RX7 or 3rd gen supra... sequential twin turbos... different size turbos but still considered twins.
