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#1
02-02-2002, 06:22 PM
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Single Turbo VS Twin Turbo
I know thatin supras it is faster to put a single tubo in place of thetwn turbo, but is this also true for RX-7s? I know its hard to compare a v6 with a twin turbo but I would like to know for a friend of mine who is in the market for an rx-7. peace
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#2
02-06-2002, 03:21 PM
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Yes, most people that have FD's with the stock twins ditch them for high hp appplications.
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#3
03-24-2002, 10:54 AM
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Re: Single Turbo VS Twin Turbo
Quote:
The RX-7 does like a big single, it helps with engine life too, the dual setup has a lot of room for error and the single helps that. And none of the cars we are talking about here have a V6 
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#4
04-25-2002, 01:49 AM
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http://www.rx-7tt.freeservers.com/rx7stuff.htm
Has alot of information about the twin turbo setup for the rx-7. I would go with a good single turbo, probably a T series turbonetics. Like NB8CT said, the twin turbo setup has alot of problems and malfunctions more often then a single turbo.
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#5
05-18-2002, 12:01 AM
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Single turbos are fine for > 600 hp applications but all the power comes above 6000 rpm. Twin turbos can not only be powerful they make the rotary engine really shine. The trick is the right computer (APEXi Power FC or Haltech), improved fuel delivery (pump, filter, injectors), and the exhaust, intake and cooling mods to match. You end up with 500+ hp and a very street drivable machine where all 500hp shows up around 4000rpm and stays pretty much all the way to redline (12000 rpm in a balanced engine).
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#6
06-06-2002, 08:47 PM
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Quote:
and what do you mean when you say its hard to compare a v6(inline 6) with a twin turbo? I think you mean rotory because both the supra and rx7 are twin turbo from the factory, just to let you know. Quote:
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#7
06-24-2002, 04:11 AM
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He was mentioning the V6 as to the question of twin charging. The V6 would require 2 turbos for efficiency, as it has two engine banks, so a single turbo would require combining the headers, or running unequal backpressure.
It's all depentant on your goals. A TT setup that supports 400hp will be more streetable than a single turbo doing the same job. A single big turbo is more efficient, and the clear choice for a drag/race car, where the RPMs will allow constant boost. A street car will see a lot of off boost duty, often with rpms of 2000 or even less. You have to worry about stop lights, gearing down... the list goes on. If you have a good single setup, with a good stand alone engine management, you can almost eliminate lag. The sad fact is, single turbos lag. They lag really badly if you want big power. I have seen 4 cylinder turbo cars, 400hp with a pair of little K24 turbos, with no lag. The header collecters went right into the turbos, and they then merged into a single pipe. Crazy...
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 Connor - Porsche Nazi since 2001, VW defiler since 2004  This here's a Fabrication forum!  My lugnut requires more torque than your LS1 makes.
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#8
07-09-2002, 08:02 PM
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i always thought twin turbos had longer lag times unless there was one low pressure for low revs and one high pressure for higher revs. dont twin turbos take more power to get them to spool?
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