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Joined: Dec 2002
Posts: 290
vejita_13
Member
vejita_13 Dec 10, 5:47am - #67411 

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2002 Toyota Celica GT

Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
twin turbo inline four...possible?

ok, this might be a stupid question/topic. i know ive read on previous threads that it isnt possible to twin turbo a four cylinder engine (i dont remember why exactly, but i think it had something to do with the orientation, such as compared to a v6, which has two separate exhaust manifolds, therefore two turbos can be situated). but, there are inline six cylinder engines that are twin turbo'd (ie. skyline gtr). so is it really the number of cylinders, or because of the lack of space that fours cant be twin'd?
Joined: May 2002
Posts: 3,295
Steven
ECelica Staff
Steven Dec 10, 5:54am - #67412 
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
Anything can be done. Do i remcommend this? no.
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid Dec 10, 5:56am - #67413 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
one contributing factor is that TT's are basically used for this reason...the first turbo is small and spools up so that there isn't any lag from the time you press the gas until the time the big turbo spools up. They are made like this because the bigger turbo wont spool up till a much higher RPM...the idea is that you are eliminating turbo lag.

A four cyl. engine cannot handle as much boost as a 6 cyl and therefore does not need a TT. A single turbo that spools throughout the entire powerband is capable of producing more than enough boost to blow the engine. For this reason we dont need TT's.
Joined: Apr 2003
Posts: 896
element_celica
Senior Member
element_celica Dec 10, 6:04am - #67414 

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Joined: Apr 2003
Posts: 896
Michigan
i don't think there would be enough exhaust gas pressure to spool 2 turbo's simultaneously anyway(for the celica).

rip celi...
95 240sx
Joined: Jan 2003
Posts: 2,161
Street Prototype
ECelica Staff
Street Prototype Dec 10, 6:07am - #67415 

ECelica Staff
2002 Toyota Celica GT

Joined: Jan 2003
Posts: 2,161
Guam, U.S.A.
you can go quad turbo, 1 turbo for each cylinder spineyes

[Linked Image]
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Posts: 290
vejita_13
Member
vejita_13 Dec 10, 6:10am - #67416 

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2002 Toyota Celica GT

Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
alright, alright...i told you it would be a stupid question... just wanted to know why...
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Posts: 837
LinkTallica
Senior Member
LinkTallica Dec 10, 7:10am - #67417 

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1996 Geo Prizm

Joined: Nov 2003
Posts: 837
Cal LA
Originally Posted by Street Prototype
you can go quad turbo, 1 turbo for each cylinder spineyes

rofl
Joined: Dec 2002
Posts: 290
vejita_13
Member
vejita_13 Dec 10, 7:12am - #67418 

Member
2002 Toyota Celica GT

Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
thank you spaz and element for the useful info. if this is all the constructive input that is going to become of this thread, please close it. otherwise its a waste of space.
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