Manifold Shortening For Bigger Turbo ?

[CALEBSNZ]

So i got a new rb20det and its running standard 20det sidemount turbo , i want to put my t3t4 back on but its ennificient on a 20 kicking in around 4000-7000k i heard if manifold is shortened it will kick in quicker and be more effecient , is this true and is it worth it ?

[Ben C34]

shorten what manifold? And how? I'm going to say not worth it, no way

[CALEBSNZ]

idk i was just told this by a mate and i wasnt really paying to much attention but i would assume turbo manifold , i just want more boost out of it and i already have the turbo so it would be good if i could run that but have it kick in lower revs

[Ben C34]

Are you talking about the stock manifold? It's as short as it gets, have a look at it! And it's not like you would hack up a high mount manifold to try and shorten it.

[CALEBSNZ]

yea stock manifold sidemount , thats what i was thinking but he said hes done it before and its a piece of piss so idk haha but it doesnt sound like something you would do i guess i would have to look into it more but i agree hacking into manifold doesnt sound logical haha

[GTSBoy]

Tell him to put down the crack pipe.

[ZRBE]

I have a t04e on my rb20...

Why the hell would you want that kind if power output??

I can't stand it & it was and still is the first turbo car I ever drove..

Nothing.. Nothing.. Bang, wheelspin & gate haha

[CALEBSNZ]

hmm does anyone know how to turn boost up without a boost tap , im only running 6pound atm hahahahh

[Blackkers]

you can disconnect the actuator

[Ben C34]

you can disconnect the actuator

Yep, easiest and cheapest way to unlock max boost, pull off wastegate line. (seeing as you got fairly confused about the manifold thing, that is a joke)

[niZmO_Man]

Tell whatever hybrid turbo you have. Buy a NEO6 turbo, it bolts straight on. Put the RB20 actuator on that and enjoy 10psi. It kicks in around 3,000rpm (probably a bit earlier if you had a full exhaust). Good for some fast driving, better fuel economy while putting around. Win win.

[Dan_J]

this applies to manifold pipe diameter, bigger pipe = more lag but some top end power, where as smaller pipe is more response but top end power is reduced

so stock manifold is more responsive due to smaller diameter pipe

you might have a boost leak or if not your running a r33 turbo/actuator for that 6psi

[r32gtrs]

sounds like its normal for an ebay t3/t4 turbo (whatever that is who really knows) to spool extremely late on a 20. you cannot shorten the maniifold someones just talking crap to you. better off selling it and putting on an rb25 standard turbo. car will be like new car to drive, will be so much quicker and more enjoyable.

[Blackkers]

yeah agreed. People hang shit on the stock turbos but if you've got a daily with only a couple stage 1 mods then they're pretty perfect. +1 for the neo turbo +rb20 actuator

[eightsixboy]

Op6 rear housing is a little big for a 20, considering you can't run a lot of boost through them I wouldn't bother, better of selling one he has and buying a 2530 or similar, at least will have the potential to make decent power and have great spool.

[niZmO_Man]

Do have an option of running a disco potato sized turbo, not sure what turbo would be a bolt on.

Tell whatever hybrid turbo you have...

Doh! Should read "Sell whatever..."