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s13400hp
02-04-2008, 11:55 PM
Which is the best throttle body to use when upgrading from stock sr20det. Can you advised the difference between my options. Thanks
Dousan_PG
02-04-2008, 11:57 PM
s14 na
q45
and stuff
s13drob
02-05-2008, 12:08 AM
:naughtyd: ITBs + a plenum. thats tha ultimate
Dousan_PG
02-05-2008, 12:09 AM
throttle body


there is no "s" or "ies"
s13drob
02-05-2008, 12:27 AM
http://www.tomei-p.co.jp/_2003web-catalogue/e121_intake_4thro.html

que? plus a plenum. but then again i heard a single 90mm throttle body is equivalent to four 45mm ITBs. check on that. im nt sure
Dousan_PG
02-05-2008, 12:28 AM
http://www.tomei-p.co.jp/_2003web-catalogue/e121_intake_4thro.html

que? plus a plenum. but then again i heard a single 90mm throttle body is equivalent to four 45mm ITBs. check on that. im nt sure

sr20det

not NA

he doesnt look for NA nonsense
s13drob
02-05-2008, 12:36 AM
sr20det

not NA

he doesnt look for NA nonsense

i know what motor he was askin for. u can un ITBs with a turbo. u jus got 2 use PLENUM. look into 2. pretty interesting stuff
soreballz
02-05-2008, 12:36 AM
sr20det

not NA

he doesnt look for NA nonsense

^^Thats what the plenum is for. ITBs aren't just for N/A setups.
(Although, a large single TB + v-mount setup is just as, if not more, efficient.)
efrain240sx
02-05-2008, 02:09 AM
How about a sr20 n/a throttle body I heard they are like 5mm bigger then the det's. Some one correct me if I'm wrong
eek
02-05-2008, 02:26 AM
If i remember correctly these should be the specs.

s13 sr20det - 60mm
s14 sr20det - 50mm
s15 sr20det - 50mm
s14 sr20de - 60mm
s15 sr20de - 60mm

Also good luck trying to find a s14 sr20de tb.. seems to be pretty hard to find.
Quail
02-05-2008, 10:28 AM
Do you have to adjust fuelling when you change the TB size?
EAT Motorsports
02-05-2008, 10:56 AM
N15 Pulsar Throttle Body - 70mm
steve shadows
02-05-2008, 11:40 AM
Q45 TB + Lightened Flywheel.

Equals huge smile. But slightly scarey fast revs ;)
Dousan_PG
02-05-2008, 11:41 AM
shit i cant wait
hahaha
steve shadows
02-05-2008, 11:43 AM
I think it has something to do with the plenum size of the greddy IM as well.
Dousan_PG
02-05-2008, 11:47 AM
u got pics how u did ur?
u cut and weld ur mani? or make an adapter plate?
steve shadows
02-05-2008, 11:48 AM
I cut and welded a flange from Ross machine, for some reason I only have pics of the setup before I ate 3 throttle body bolts through the engine.

BTW the same engine is making over 400 whp on pump ;) I love SRs.

Ill get back to you in a second.
Dousan_PG
02-05-2008, 11:49 AM
thanks. going to cut and weld mine. no adapter plate nonsense.