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Location:
newcastle
Registered:
June 2002
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1jz twin dump pipes
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Sat, 17 April 2004 11:11
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MANY people email me regarding dump pipes for 1jzgte.
Lillford exhaust in newcastle now sell ready made ones that are already HPC coated .and apparently ready to bolt on to soarer
They also sponsor the Nationals and give discount to Toyota Nationals Patrons
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: 1jz twin dump pipes
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Sat, 17 April 2004 15:52
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Sweet, that sounds good. Are they better than those ones featured in one of the mags recently (HPI I think?) available from Unique Autosports?
Do you know anyone who could grab a pic of them?
Thanks mate.
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: 1jz twin dump pipes
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Sun, 18 April 2004 01:46
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Sun, 18 April 2004 03:37
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how much are they?
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 00:31
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Nice one craig, thanks mate.
These ones don't look too bad at all, I'll have to get on my brothers case to buy a set. 
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Location:
south east - melbourne
Registered:
March 2004
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 00:33
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anyone know where to get dump pipies for the old school soarer
ie --- the 1g-gte engines
cheers
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 05:44
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| indian wrote on Tue, 04 May 2004 10:33 |
anyone know where to get dump pipies for the old school soarer
ie --- the 1g-gte engines
cheers
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im looking at doing this, but it is going to be much more difficult as there is far less room between the turbos, ill let ya know how i go
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Location:
south east - melbourne
Registered:
March 2004
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 05:46
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CHEERS MATE let us know what happens as im looking in melbourne ad so far not found anything
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Location:
newcastle
Registered:
June 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 08:25
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no these are my old dump pipes they are avialble through premier exhuast in newcastle . but you need to run twin 2.5 inch system with twin cats of there is no real gain .
Lillford sells a simple 2 into 1 3 inch with o2 sensor plate and hpc coating . these will not flow quite as well but are much easier to install and will almost bolt onto 1jz soarer
yes they are the same ones featured in HPI mag
regarding 1 ggte dumps just do the same thing with twin 2 inch this is fine for 2 litres
you can contact Newcastle exhaust in belmont,lake macquarie
premier exhaust in mayfield,Newcastle
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 09:15
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do you think it would be alright to have the twin pipes join just before my 3" cat as it is quite expensive and I don't really want to chuck it out and go and buy 2 * 2.5" ones?
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Location:
ACT
Registered:
February 2003
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 10:20
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I have recently put a set of the Unique Autosports dumps (HPI advertised set) on my car so can confirm they will fit a MX83 Cressida. It is close to the power steering but fits with no worries. I am sure they are not as effective as dumps that split for longer but they have still made a definite inprovement! 
And easy off the shelf fitment and quite reasonable price really.
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Location:
newcastle
Registered:
June 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 12:29
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if your only going to run 1 cat then the restriction already exists .still do twin pipes but dont blow a wad on them
The bullsit about cats is they have very little flow restriction when new but after 50,000 klms of rich as hell jap turbo exhuast through them they are clagged and restrictive .
my advice ANY dump will be a improvment .The lillford ones do a good job for the price .
the rest of the system is stil more important than the dumps they go hand in hand when together though
but if your going for power then do whole job properly or not ANY exhuast is only as good as its greatest restriction .
simply changing my rear muffler is good for 16 h.p @ wheels .the rest of the system already flows that well . but the stealth muffler remains on most of the time
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 12:36
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i just wanna confirm my understanding of twin dumps
*they allow exhaust to flow more, which results in less lag more responce
*they reduce heat to exhaust wheels meaning more boost can be run safely
anything else i missed?
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Location:
newcastle
Registered:
June 2002
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Location:
south east - melbourne
Registered:
March 2004
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Re: 1jz twin dump pipes
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Tue, 04 May 2004 23:17
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regarding 1 ggte dumps just do the same thing with twin 2 inch this is fine for 2 litres
you can contact Newcastle exhaust in belmont,lake macquarie
premier exhaust in mayfield,Newcastle
damn im from melbourne ,
anyone near this place who has done dump pipes for the 1g-gte soarer
can u pls let me know how good they are and weter they make any improvements
cheers
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 00:15
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Celicamad,
You've had a fair bit of experience with people and their 1G's, has anyone you know actually got twin-dumps made for their 1G? I understand that 2" would be the go, but there is SFA room there... 
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Location:
Brisbane
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 01:40
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Would there even be any benefit with the laughably tiny stock 1G turbos? It's not like you can run a lot of boost anyway...
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 01:43
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Meh, they may be small, but they're there, in my case they are already high-flowed and I'm more interested in exploiting the mid-range potential of the factory twins and engine setup than going for a single turbo setup.
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 03:14
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| Norbie wrote on Wed, 05 May 2004 11:40 |
Would there even be any benefit with the laughably tiny stock 1G turbos? It's not like you can run a lot of boost anyway...
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It's not the size that counts 
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Location:
newcastle nsw
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 05:06
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i was looking at doing this to my 1g when it had the twins on a couple of years ago, had it on the hoist and pulled it apart, and no there really wasnt enough room, and the manifold itself didnt look nearly as restrictive as the 1js, so i didnt go ahead with it.
thats not too say it cant be done, its just that at the time the money spent wouldnt have got anywhere near the gains that can be had by doing it to the 1j.
that was actually from the guy that first put the dumps on joes car, as i believe he was the first one to do this mod ( correct me if im wrong paul)
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Location:
Perth
Registered:
January 2004
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 05:57
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Would I be correct to assume that the twin dumps suited to the soarer, which can be bought from lillford exhaust, would bolt up to the turbos on the 1jz from the jza70 supra ? All that would be required to be modded is the connection between exhaust flange and the twin dumps dump pipe ? (quite the mouthful!)
I guess that considering many people have custom exhaust this would be the case anyway ?
And how much do they sell them for ? If they are cheap enough I might go ahead and do it to squeeze all I can from the factory twins before I get serious with a gt28 or 2 ...
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 06:41
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i was told that they are made for the jza70 and they were $420.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 08:03
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420 for dumps?.. sounds a little low
i hear 460-500
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Location:
newcastle
Registered:
June 2002
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Location:
south east - melbourne
Registered:
March 2004
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 09:40
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damn so theres no point putting in dump pipes on the 1g-gte for the average joe daily driver ,
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 09:58
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Celicamad,
Is the person with the dumps on the 1G on Toymods, if not, would you be able to find a little more about them for us? My car will definetly be retaining the stock turbos.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 10:17
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im sure u could find better gains for your money on the 1g
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 10:24
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Yeah, but after the planned mods, my new intercooler, the Blitz CT12's, an enclosed pod filter with a cold air feed, a full 3" mandrel bent exhaust, a Celicamad boost controller and eventually an aftermarket ECU, there isn't a lot left to do with the factory turbos if I wanted more.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 10:46
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| justcallmefrank wrote on Wed, 05 May 2004 20:24 |
Yeah, but after the planned mods, my new intercooler, the Blitz CT12's, an enclosed pod filter with a cold air feed, a full 3" mandrel bent exhaust, a Celicamad boost controller and eventually an aftermarket ECU, there isn't a lot left to do with the factory turbos if I wanted more.
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i remember u saying once u didnt want a ridiculous ammount of power? lol
hence why u werent going 1jz
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 10:48
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I don't want a ridiculous amount of power, ultimately I would've got more from a 1JZGTE, but I'm happy with the fact I'm just bolting in a twin-turbo version of my factory engine. I'm not after uber peak power, just maximising what I've got.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Wed, 05 May 2004 11:00
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still will be an awesome ammount of power over a stock engine either way
im sure we will both feel it over 1g n/a engines lol
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 02:25
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to anyone with twin pipes on 1jz:
where did you fit the 02 sensor? I read that the 02 sensor needs to be in a place that will receive gasses from each cylinder. Is this true?
If so, you would have to fit it way back after the twin pipes merge.
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Location:
Perth
Registered:
October 2003
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 04:43
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Yeah i worried about that when I made mine, but in the end i just stuck it in the front pipe, first three cylinders.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 04:57
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why would it matter?
as both turbo's are making 11 psi
wouldnt it all be the same?
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 05:14
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from what I understand, you hope they would be the same but for the 02 sensor to be working as accurately as possible it should be reading from gasses from all cylinders. that is the way i see it anyway.
oh well, front pipe it is
thanks Skip
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Location:
Perth
Registered:
October 2003
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 08:57
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| Jag7799 wrote on Mon, 28 June 2004 12:57 |
why would it matter?
as both turbo's are making 11 psi
wouldnt it all be the same?
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Whats boost go to do, got to do with it (Copyright Tina Turner)? O2 sensor is used to measure air/fuel ratio. When you are boosting you wouldnt be in closed loop mode anyway. 
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Mon, 28 June 2004 22:20
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| Skip wrote on Mon, 28 June 2004 18:57 |
| Jag7799 wrote on Mon, 28 June 2004 12:57 |
why would it matter?
as both turbo's are making 11 psi
wouldnt it all be the same?
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Whats boost go to do, got to do with it (Copyright Tina Turner)?
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Love your work mate
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I supported Toymods
Location:
Perth WA
Registered:
May 2002
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Re: 1jz twin dump pipes
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Fri, 02 July 2004 01:09
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Boost would be the same effectively for all cylinders as the charge air converges in the intercooler and intake manifold.
The A/F ratio may be different between downpipes if an injector is playing up and affecting the collective exhaust in the front 3 or back 3.
You really can't really monitor each individual cylinder without 6 O2 sensors.
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Location:
Newcastle, NSW
Registered:
February 2003
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Re: 1jz twin dump pipes
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Mon, 05 July 2004 22:52
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twin dumps were definatly my best modification on my JZX90 so far. i have 2.5inch pipes off each turbo running into a single 3inch cat-back system.
my gain with this was 26rwhp.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Tue, 06 July 2004 02:10
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thats a shite load.. ill get it done eventually
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Location:
Brisbane
Registered:
July 2004
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Registered:
November 2003
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Re: 1jz twin dump pipes
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Fri, 08 October 2004 04:51
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Pete you have a PM
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Registered:
November 2003
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Re: 1jz twin dump pipes
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Fri, 08 October 2004 07:05
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On the same topic,
The UAS site has them as HPC COATED DUMP PIPES FOR TOYOTA SOARER TWIN TURBO PRICE: $515.00 EACH
Ok are they saying you need 2 of these???... looking at the pic they supply (attached) it just looks to me to be a twin dump into single 3" but the soarer has a twin exhaust?.. or am I mistaken?.... or have they just used a generic pic as they seem to like doing.
Not that am looking to buy from them at all (will get from manmx83.. Pete hurry up and reply! ).. but its just confused the hell out of me (UAS site) thats all.
Pic from UAS site
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Fri, 08 October 2004 07:24
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$550 for that!!!!!!!! WTF! 
looks to have very minimal increase in flow capabilities to me.
The soarer exhaust is usually single Y-pipe which splits half was down the car into 2 exhausts. The regular setup with twin dump pipes is to the have your two dump pipes which join a little further down the car and then into single exhaust. Or you could have a seperate exhaust for each turbo if you were into overkill.
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Location:
Perth
Registered:
October 2003
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz twin dump pipes
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Fri, 08 October 2004 10:29
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| Skip wrote on Fri, 08 October 2004 17:49 |
| Chris Davey wrote on Fri, 08 October 2004 15:24 |
$550 for that!!!!!!!! WTF!
looks to have very minimal increase in flow capabilities to me.
The soarer exhaust is usually single Y-pipe which splits half was down the car into 2 exhausts. The regular setup with twin dump pipes is to the have your two dump pipes which join a little further down the car and then into single exhaust. Or you could have a seperate exhaust for each turbo if you were into overkill.
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Are you serious? That would crap all over the standard dump for flow, it is heaps better than the standard dump.
Look at the way the two turbos merge in the same direction, the standard one doesnt merge, it collides!
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def not the best ones ive seen though
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Registered:
November 2003
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Re: 1jz twin dump pipes
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Fri, 08 October 2004 11:10
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Ya its not bad (UAS one), but the one in manmx83's avatar looks the killer design, joins much further down and looks totally unrestricted.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz twin dump pipes
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Sat, 09 October 2004 04:38
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| Quote: |
Are you serious? That would crap all over the standard dump for flow, it is heaps better than the standard dump.
Look at the way the two turbos merge in the same direction, the standard one doesnt merge, it collides!
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Ok, wrong choice of words. It would have more flow than a stock Y-pipe for sure but for that price you could get much better flowing ones.
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