80mm Throttle Body

[Kujotk]

I have been searching for things to throw into my r33 gtst series 2 and every web based search i make there is a larger throttle body i can put onto my car,,,, ebay is full of them and here is a link so you guys know what i'm talking about...

http://sydney.gumtree.com.au/c-Cars-for-Sa...QQAdIdZ83573567

my questions are...... are these worth the money???

.... is there any real gain over the stock one????

... has anybody had good results after buying one of these "universal" type throttle bodies???

... how easy are they to install???

or is it something worth waiting untill i get a new plenum and match them up????

cheers

[Julz89]

man unless ur gona change ur unlet manifold i rekon personally that a bigger throttle body does nothin, maybe a louder induction noise. Its liek puttin water in a funnel u but the bottom bit is the same size, all it will do is hold more capicty but flow the same if that makes sence.

[Kranker]

wait until you upgrade your plenum,

then buy a throttle body that is the apporpirate/reccomended size.

the plenum will probably come with a throttle body, alot of manufactures sell them as a kit with all the required ancillaries.

[Kujotk]

kool kool thanks

[joeyjoejoejuniorshabadoo]

does the plazmaman one come as a kit?

was gonna go greddy, but i'm not buyin ANYTHING from japan atm

[WARLORD]

i think if you have done little to no mods on your car it would be a wast of money and time,plus you engine response will be down , if you running say 400 + hp then give it a go with a 90mm q45

Edited October 31, 2008 by WARLORD

[Kranker]

yep plazmamans comes as a kit (for the neo head anyway, thats all ive been looking at) about $1.3k, for plenum and t/b, uses standard cables and sensors etc. (their website is pretty good, fair bit of info on their)

always prefer buying aussie made when its appropriate

[axe s]

You won't need to upgrade until you do your plenum... then i would use a Q45 TB, i got one of the ebay/universal TB's and it stuck open at rev's so u needed to give the throttle a stab to release it (not a good thing in a 450hp car). Also it wouldn't shut enough on 0% throttle so it would idle on about 1300rpm, and u need to get a flange welded on so when it gives u the Sh)ts u have to cut it off and try not to destroy ur plenum... then u'll just go spend $160 on a Q45 TB anyway.... so they are a waste of money,

Just my 2c on the matter lol....

[fat r34]

I run the plazmaman plenum and throttle body cant fault either and they look awsome together, i'm sure if you give alex a call at plazmaman they would do a matched plenum and t/b for a r33.

[RB30-POWER]

waste of time and money, if you can show me that your stock throttlebody is causing a significant pressure drop at mild to medium power levels i will buy it for you, how's that?

you will end up with a touchy throttle at initial opening and doughy as it gets towards wot.

Edited November 3, 2008 by RB30-POWER

[tets]

big bump also been reading up but no1 can tell for certain where the stock throttle body starts to become restriction. some people say 250 others go 350 others go theres no restriction.

anyone know how hard it is to get a q45 on a plazmaman manifold?

aiming for 320+ so im guessing might aswell be safe and upgrade.

[bubba]

Stock manifold & throttlebody on my 30 (they are off an R32 RB25DE), made 365rwkw in the previous car they were in - we think that they were a restriction at that point. Same turbos are on a new 30 (but with a 25DET head) with a GReddy intake manifold and q45 t/b, made 395awkw @ 2psi less boost. (Original car was a rwd, new car is 4wd).

I would say that is about the level the stock manifold and throttlebody are good for

[R31Nismoid]

Mine was ...

370rwkw on sunoco 104 - 24psi

stock plenum, stock cams, stock throttle body

[bubba]

Was it still making power? or was more boost not doing anything?

365-370rwkw seems about it then!

P.S. my example above was on stock 25DE cams.