Jump to content
SAU Community

Recommended Posts

What i was really wondering, has anyone made over 300rwkw with the standard dumps and then changed to see a notable difference.

HKS 2530's @1.3-1.6 bar

Oil cooler

PFC pro

twin 3" exhaust

forged pistons 8.8CR

linished, shot peened rods

Jun 1.2 metal head gasket

555cc injectors

044 fuel pump

K&N panel filter

oil catch can

2530's on mine @ 1.2bar with std dumps made 275rwkw@4500rpms on a 2wd dyno dynamics in shootout mode we didn't push any further cause the dyno showed the car leaning out big time which was later to be proved wrong so didn't get to do a full power run.

I've got a set of xforce dump pipes (like hks copy's) here which are going on soon after looking at some standered one's they look very restrictive hopefully when we get around to pulling the turbo's off and bolting up these xforce one's will not only make more power but hopefully see full boost earlier on which is very important . If you have everything apart like you say then I would certainly upgrade the dumps as it's much easier to do so and it will be a bottleneck for the 2530's .

we just use those dump pipes which are one big pipe not the split dump set up.

also from looking at all the jap brands i thinkHKS is the only one apart from the new trust dump/front pipe wich use the split style dump pipes.

the first mods we did to our car was a twin 2.5'' into 3'' front pipe with a set of stainless manifolds and the stainless dump pipes.

with useing a boost controller or anything else we were making 215kw at all four wheels.

with a perfect diagonal line up with the revs.

hope this helps,Ben.

i made custom 3" dump pipes one piece (not split) look very similar to the tomei units for mine in the early days and found them well worth the effect. Better responce and spool up and are still running the same units know at close to 400rwkw

Ok just picked a some Xforce dumps from CRD for $450. They look really nicely made however not perfect. Where the wastegate pipe meets the turbine exhaust pipe there is a lip instead of a smooth transition. I will be grinding this out before installing. Apart from that they are perfect and come with gaskets. Also the pipe size is 47.5mm and then 50mm a cm down after the flange. fine for my 2530's but no good for 2835 and up.

If you want to restrict your turbos, then use the factory dumppipes!!! Good choice on getting a custom set. The factory dumppipes are crap. My brother and I fitted new dumppipes to his car along with N1 turbos. The car sounds a lot throatier now...hence the exhaust has been opened up. Seriously, if you can fit some custom dumps...which you will, you'll be very happy with the result. You will make more power. No doubt about it. Especially you have twin 3" exhausts which would be going to waste with those fatory dumps. You're system is only as strong as your weakest link, in your case, the only link being the dumps.

Keep us posted.

I posted some pics of the CES dumppipes on the N1 turbos I fitted to my bro's GTR. Search and you'll see them bolted on. But in terms of quality, they are the best. I have never seen something like them internally. They are smooth, no dags and flow very well. I have never seen HKS ones tough. Im pretty sure they must be good.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • It only looks tidy, as most of the stuff that was on the whole back wall, is now in the trailer to go to the tip, or has been shoved in my 2.2x2.4m "Spare parts room", and now I can't get to anything in there Ha ha ha I could definitely do with a bit more space, but I'd just end up with your problems I'm going to enclose the car port beside the garage, and move a lot of stuff into it I think. OR... It will be setup as a fabrication area, and the main garage will have parts storage in it. I'm not sure yet... Need some pictures of that big shed you've got with the bikes and Skyline in
    • No. I think it's gone. 😭 I think you can get body coloured ones on eBay so I think I'll get one of those... Or just hang a red ribbon from the hole and whack a TOW sticker next to it.
    • Can't say I've had a bad experience with one on my car, then again it only gets washed once or twice a year... The wheels on the other hand, get a good spray often due to my shitty dusty pads.
    • @MBS206 thats pretty neat and tidy to me!  I'll get a photo of mine when I'm out there next. It might require multiple photos to understand the scale of the atrocities though... In total I have 4 sheds of varying sizes and layouts. Main shed is 14x8, second shed is 3x8, third shed is 11x2.5, fourth shed is around 6x4.  All are pretty much full.   The main goal of my cleaning tsunami is to make the main shed predominantly car and motorbikes only. Second shed is my metal fab room (2 x bench grinders, drill press, bench belt sander, metal band saw, scrap metal storage and some of my garden tools.  3rd shed is more bigger garden stuff, storage for engine crane, jack stands, concrete grinder, concrete mixer, air compressor lives there, and it now has two 2mx2m pallet racking shelves with itemised boxes holding building stuff, electrical stuff, plumbing stuff, etc, etc.  The 4th shed is Ryobi electric ride on mower, mini boom sprayer, ancient Kubota tractor, more garden stuff!  I have got a lot of shit....  Then there's the pool house (8mx4m) and the pool pump shed (4mx4m).  I built all of the sheds over the 11 years we've been here.  The main shed was a Ranbuild kit, the rest are all custom made to fit the areas available. Building the main shed taught me a LOT as I had no idea about building anything prior to that!  I've still got one more in me. It will be my man cave which I poured the extra concrete for way back when I poured the concrete for the main shed. The idea is the Skyline will be a centre piece of the main cave once (if...) it's finished.  I told my now 14 year old son yesterday that I will 100% drive him to his year 10 formal in 2 years. Still a long way off but at least I now have a date to work towards! 🤣
    • Modern oils are amazing. Add tyres to that as well.
×
×
  • Create New...