Adaptor To Use Ex Gate On Stock Manifold

[R31Nismoid]

smell - that manifold you posted earlier as filthy as well... utter junk welding

[r33_racer]

Found a pic of what mine looks like. It was the best angle i could get...umm guessing when i first tacked it up lol.

Edited December 15, 2009 by r33_racer

[FOOLBOOST]

Another pic can run either a gt30 or gt35 in stock mount with external gate pm me if you need one.

[STATUS]

to be honest i would only look at these setups if your really on a budget. The manifolds become bit of a restriction at anything over 280rwkw (we have made alot more but exhaust pressures are way high), we just swapped out a std manifold (gt3582) for a low mount merge collector getup and it transformed the car.

Edited December 15, 2009 by URAS

[Don Dada]

Sweet figure there Trent as 280rwkw is what i was aiming for

See i'm from the Caribbean and its hot as shit right through so i want to keep under bonnet temps down as much as possible therefore not looking at those ss high/low mount manifolds....... not to mention our 95 fuel makes things so much better.

My friend has one of those high mounts installed and has constant problems with coil packs.

This system also "kills two birds with one stone" as it provides a spot to mount the wastegate and a spacer to clear the compressor

Foolboost pic shows a 44mm wastegate right?

Wouldnt that be too big for my application?

[Crans]

I'm on quite a budget with my build and am using a Hypergear ATR28G4 IW on the stock manifold.

Plan is to eventually run an external gate on the stock manifold.

I have a spare stock manifold and a die grinder and plan to port match to the gasket on both ends of the stock manifold and maybe abit of ceramic coating.

Will this make a difference on the amount of power that can be made?

[CEF11E]

yes it will. when I was using my HX35 on the stock manifold it made around 280rwkw and had boost control issues. now with the external gate welded to the manifold on the same boost it makes 326rwkw on 19 psi. there would be no more in it though. there is probably a huge amount of back pressure but no detonation.

300 is the realistic limit.

[XRATED]

What Island are you on bro? We'll be docked in Sint Maarten/St Barths for a while.

If you go with the stock manifold, take the time to match port it to a set of gaskets at least. If you can, get someone to media blast the inside too with some fairly aggressive abrasive.

Good luck.

  smell said:

Sweet figure there Trent as 280rwkw is what i was aiming for

See i'm from the Caribbean and its hot as shit right through so i want to keep under bonnet temps down as much as possible therefore not looking at those ss high/low mount manifolds....... not to mention our 95 fuel makes things so much better.

[TriniGT]

HKS Cast Manifold, problem solved. Now I just need the GT3076R and the HKS 40mm wastegate which is on delivery as we speak .

Edited December 16, 2009 by TriniGT

[Swiper the Fox]

Brisbane RB30 guru's JW Automotive mount GT3540's on not only stock VL turbo manifolds but also have done RB25 manifolds for Godzilla Motorsport. They have given lots of proven results for a considerable amount of time now. They use a Turbosmart external gate mounted along the manifold and a small laser cut spacer plate to give clearance for the turbo. Excellent boost control using this method and have quite a number of cars running 9's and 10's with this set-up.

[Don Dada]

  DiRTgarage said:

Brisbane RB30 guru's JW Automotive mount GT3540's on not only stock VL turbo manifolds but also have done RB25 manifolds for Godzilla Motorsport. They have given lots of proven results for a considerable amount of time now. They use a Turbosmart external gate mounted along the manifold and a small laser cut spacer plate to give clearance for the turbo. Excellent boost control using this method and have quite a number of cars running 9's and 10's with this set-up.

When u say mounted "along" the manifold what exactly do u mean???

[Swiper the Fox]

  smell said:

When u say mounted "along" the manifold what exactly do u mean???

hole cut in manifold and small pipe section complete with flange welded on...quite simple really and looks very neat. Justin is a top class welder also....he welded a trust TD06 flange on a S14 HKS manifold that we needed to modify last night and you would swear it was done by a robot!

Edited December 16, 2009 by DiRTgarage

[Don Dada]

Yeh alot of ppl seem to have done this with good results

I guess its a matter of getting it weld right to avoid cracking.

What would be better though... welding the flange directly on the manifold like in the pic i posted earlier or welding in a short piece of pipe with the flange on the end?

I guess the only advantage of welding a piece of pipe allows me to place the gate where i want it?

Also what size gate is recommended for this set up......Rb25, Gt3076 / .63, stock manifolds, 280rwkw which should be around 16-18psi-ish

I was originally going to use a 38mm but in the dyno thread saw some ppl using up to 44mm with this turbo.

[Don Dada]

  XRATED said:

What Island are you on bro? We'll be docked in Sint Maarten/St Barths for a while.

If you go with the stock manifold, take the time to match port it to a set of gaskets at least. If you can, get someone to media blast the inside too with some fairly aggressive abrasive.

Good luck.

You're far still bro..... I'm at the end of the chain

Trinidad

[XRATED]

  smell said:

You're far still bro..... I'm at the end of the chain

Trinidad

Ha ha ha ha ha... yeah. We don't get down that far. There seems to be quite a skyline/nissan/import scene going on down there... I know a couple of guys in Florida that send alot of gear and built rb's down your way. Might have to check it out some time.

For my GF's rb25, we cut a hole in the center of the collector, then welded a mounting plate directly to the manifold, bolted a 38mm turbosmart wastegate on and plumbed it back into the exhaust.

J.