can anyone help me ??

Discuss the RB20, RB25 and RB26 series engines.
nissan21012
Posts: 9
Joined: Tue Jul 08, 2008 5:13 pm
Car: s13

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i jus bought a 240sx and swaped an rb25 into it for my graduation project.. i need help on what i need for the turbo to work.. i need a top or low mount manifold with an external wastegate.. but is the top mount downpipe going to be long enough for my t70 turbo..people told me to weld it to make longer but i feel that theres an easyier way..all the low mount manifold that i looked at dont have an external wastegate adapter..what should i dooooo?? im new to this so can someone please help me out?


Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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Odds are that you won't get a low mount to fit with the crossmember and mounts in an S-chassis. See how easy that makes this decision? And yes you're going to have fabrication work to do with any turbo and manifold upgrade. Git 'er done!

Sil240
Posts: 2973
Joined: Mon Apr 28, 2003 5:26 pm
Car: Nissan S13 "The One Cam Wonder"

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If your using a R33 X-member then check out the HKS low mount manifold.But...... if your gonna be using a T70 I dunno if that's gonna fit....

What are you doing?A Drag car??

nissan21012
Posts: 9
Joined: Tue Jul 08, 2008 5:13 pm
Car: s13

Post

thanks a bunch..so get the top mount and go from there?

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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6boost manifold

nissan21012
Posts: 9
Joined: Tue Jul 08, 2008 5:13 pm
Car: s13

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and then just weld a pipe to the downpipe to make it longer??

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

Post

You might have to cut the existing down pipe and get a piece welded in that fits around the steering shaft. It all depends on the final placement of the turbo so no one can say exactly how much you have to add/modify.

Just buy it, install everything and see where you need to modify the down pipe to get it to line up.

nissan21012
Posts: 9
Joined: Tue Jul 08, 2008 5:13 pm
Car: s13

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and what about the intercooler...does it have to be for the rb25...and same with the radiator??

nissan21012
Posts: 9
Joined: Tue Jul 08, 2008 5:13 pm
Car: s13

Post

and what about the intercooler...does it have to be for the rb25...and same with the radiator??


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