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twin turbo inline four...possible? #67411 Dec 9, 9:47pm Dec 9, 9:47pm
Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
vejita_13 OP
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2002 Toyota Celica GT
vejita_13 OP
Member
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?

Re: twin turbo inline four...possible? [Re: vejita_13] #67412 Dec 9, 9:54pm Dec 9, 9:54pm
Joined: May 2002
Posts: 3,294
Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS
Steven
ECelica Staff
2001 Toyota Celica GTS
Steven
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,294
Riverside, CA
Anything can be done. Do i remcommend this? no.

Re: twin turbo inline four...possible? [Re: vejita_13] #67413 Dec 9, 9:56pm Dec 9, 9:56pm
Joined: May 2003
Posts: 5,346
LA
S
spaztikid
dikitzaps
1974 Toyota Celica
spaztikid
S
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.

Re: twin turbo inline four...possible? [Re: spaztikid] #67414 Dec 9, 10:04pm Dec 9, 10:04pm
Joined: Apr 2003
Posts: 896
Michigan
element_celica
Senior Member
element_celica
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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
Re: twin turbo inline four...possible? [Re: element_celica] #67415 Dec 9, 10:07pm Dec 9, 10:07pm
Joined: Jan 2003
Posts: 2,161
Guam, U.S.A.
Street Prototype
ECelica Staff
2002 Toyota Celica GT
Street Prototype
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


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Re: twin turbo inline four...possible? [Re: vejita_13] #67416 Dec 9, 10:10pm Dec 9, 10:10pm
Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
vejita_13 OP
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2002 Toyota Celica GT
vejita_13 OP
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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...

Re: twin turbo inline four...possible? [Re: Street Prototype] #67417 Dec 9, 11:10pm Dec 9, 11:10pm
Joined: Nov 2003
Posts: 837
Cal LA
LinkTallica
Senior Member
1996 Geo Prizm
LinkTallica
Senior Member
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

Re: twin turbo inline four...possible? [Re: vejita_13] #67418 Dec 9, 11:12pm Dec 9, 11:12pm
Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
vejita_13 OP
Member
2002 Toyota Celica GT
vejita_13 OP
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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