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Which Dump Pipe?

Trozzle

By Trozzle,
in Engines & Forced Induction

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Trozzle Grand Master

Trozzle

Posted
  • Author
Posted

Thanks Disco! Yeah all of that is definitely what I would like to happen, as I completely agree that a separate dump/front is a lot better - only problem is finding one. the only separate dump I could find on JJR (which is as far as I've been able to search so far) is a HPI one for $500 ish...

I won't make any decisions until I've spoke to my tuner and had his advice on what to buy and where from given to me, as the main reason I want something ASAP is so I don't screw him around any more.

TALBO Grand Master

TALBO

Posted
Posted

I went for the 1 peice SS split dump from AM Performance here in Adelaide. Beautiful, high quality construction and it does not foul waste gate flap and cause boost spiking. I bought his hi flow 3" cat too at around $600 for both from memory.

Do a search on the forums, I don't think Andrew has one unhappy customer. Andrew: 0401865373

GTScotT Grand Master

GTScotT

Posted
Posted

A used HKS one would be an excellent option, I saw a few on yahoo japan and local egay lately.

While I do agree with disco to the 2 piece affair, I did just removed my stock turbo and 1 piece dump from my own car. I actually was able to remove the dump quite easily with minimal stress. I simply unbolted it from the cat then unbolted it from the turbo and slid it out. There was no magic to it, it was just a well constructed item that had plenty of access clearance for the dump flange bolts.

And now for a shameless plug: the item is now for sale :touch: I am looking to swap it for a half piece like what came off your car Trozzle. PM me if you want to do a straight swap or even cash your way (depending on quality of your item).

Cheers,

Trozzle Grand Master

Trozzle

Posted
  • Author
Posted

My dump is stock, so I don't think you want it :touch: 2.5" mild steel, seen 17 years of (ab)use

How much would you want for yours? I'd need to get it posted down to Canberra though, so not sure if you're keen to stuff around with that. Also what size is yours and what power you making with it?

I just spoke to the tuner though, he said they'd be fine to source an appropriate part for me if needed. More or less my only concern here is that I don't stuff them around and waste their time. As long as they're happy with what's going on, then I'm happy.

GTScotT Grand Master

GTScotT

Posted
Posted

Mine is an 80mm one piece front and dump.

And id be wanting your front pipe, not ur dump pipe lol. The bit that goes from the stock dump to the cat. PM me what size the inlet and outlet is, and I can more than likely post the item to you if we agree to do the deal.

Im wanting a pipe that is 70-80mm at both flanges, no less than 70mm. As stated, PM me.

Trozzle Grand Master

Trozzle

Posted
  • Author
Posted

ah ok. Well if you can hold out a little bit (by all means keep looking for something anyway, don't wait for me) until wednesday when the car will be looked at etc at the workshop, I can tell you if that will work. I will admit, I'm fairly ignorant as to what is ACTUALLY on there, and whether or not the cat is flanged or slip/weld on to the front pipe. Especially considering I thought it had an AM dump, and it's now stock, I'm not making any more assumptions lol.

Otherwise, if it will work with the workshop, and what I currently have in the way of a front pipe is what you're after (3.5", and flanged at the cat - 3.5" flange) I'm keen to do a swap with you.

GTScotT Grand Master

GTScotT

Posted
Posted

lol no problem. 3" is actually 75mm and I only need that the flanges are no less than 70mm. My pipe is off the car and I wont be needing it back on any time soon, I dont drive it. No rush.

Ill go down to the post office and ask them about postage, PM me your details for an accurate quote.

Simon-S14 Grand Master

Simon-S14

Posted
Posted
I went for the 1 peice SS split dump from AM Performance here in Adelaide. Beautiful, high quality construction and it does not foul waste gate flap and cause boost spiking. I bought his hi flow 3" cat too at around $600 for both from memory.

Do a search on the forums, I don't think Andrew has one unhappy customer. Andrew: 0401865373

This.

Andrew's level of workmanship is mindblowing... he will custom make anything that you request and it will last the life of the car unlike anything in mild steel. AM performance backs all his products and if they ever fail due to workmanship defects he will repair no worries.

Heres a pic of a GTiR kit he makes and sells worldwide. fits in all factory location and clears everything.

20939_1334893685785_1034359196_993555_4732902_n.jpg

Trozzle Grand Master

Trozzle

Posted
  • Author
Posted

Tried calling him but no answer.

Any idea how much I'd probably be looking at for a 3.5" bellmouth dump from him? I'll wait until workshop gives me exact measurements for the flange etc before I go buying anything though.

nuclear_skyline Mentor

nuclear_skyline

Posted
Posted
Tried calling him but no answer.

Any idea how much I'd probably be looking at for a 3.5" bellmouth dump from him? I'll wait until workshop gives me exact measurements for the flange etc before I go buying anything though.

For the power levels you're seeking I dont think you need a 3.5' bellmouth... Simply get a JJR 3" stainless dump/fornt pipe and bolt the f**ker in place! Worked a treat on my r33 gtst and I was at 235rwkw on 14psi with a lesser turbo than yours without any restriction.

Simon-S14 Grand Master

Simon-S14

Posted
Posted
Tried calling him but no answer.

Any idea how much I'd probably be looking at for a 3.5" bellmouth dump from him? I'll wait until workshop gives me exact measurements for the flange etc before I go buying anything though.

if he doesnt answer the phone he's most likely working.. he's a one man operation atm. leave a sms with him or email on [email protected]

Birds Grand Master

Birds

Posted
Posted

Any exhaust place should be able to make you a 3 inch bellmouth using the flange of your standard dump pipe. That's what they did with mine and it came up a treat, there's nothing that special to dump pipes, in the end it's just a hollow piece of metal (above workmanship does look nice though)! 3" is plenty for what you are after, why give up the backpressure for unnecessary size?

Rolls Grand Master

Rolls

Posted
Posted (edited)
3" is plenty for what you are after, why give up the backpressure for unnecessary size?

backpressure is never a good thing, the bigger the better when it comes to turbo exhausts, always! Obviously to a point though, a 5" dump isn't going to be of benefit.

Edited by Rolls
Trozzle Grand Master

Trozzle

Posted
  • Author
Posted

Yeah it all makes sense, I just don't want to shoot myself in the foot all because I'm rushing it a little. Thanks for all the advice though, at this stage the JJR one does look to be the most appropriate, as it's cheap, large enough for what I'm after, and bolts right up. Still leaving final advice to tuner of course tho :blush:

As always, thanks again guys :wub:

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