Jump to content
SAU Community

Recommended Posts

Surely one would see better use on a Canter than a Skyrine? ><

Ummmmmm.................thinking....................Canter, that's a Mitsubishi, so it would be a Trust turbo then. :wassup:

  • Replies 152
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Hey sydkid did u find any great differnts in spool time from normal turbine to titanium turbine

thanks Brad

Hi Brad, I ordered it that way from Innovative, so I have no basis of comparison.:)

I dont know if anyone has mentioned it and i don't know if Brian is woried about it

or if anyone else is but with a BIG single can the RTA road transport authority give you a defective vehicle for a big single?

I dont want to get into the argument of 1big or twins but i would hate it to get it all together and have our friendley "BOYS IN BLUE" come and tell you that you have a defect note, i dont think the insurance company will approve a payout when they pop the hood and see somthing like a T88 staring at them!!

I dont know if anyone has mentioned it and i don't know if Brian is woried about it

or if anyone else is but with a BIG single can the RTA road transport authority give you a defective vehicle for a big single?

I dont want to get into the argument of 1big or twins but i would hate it to get it all together and have our friendley "BOYS IN BLUE" come and tell you that you have a defect note, i dont think the insurance company will approve a payout when they pop the hood and see somthing like a T88 staring at them!!

The reality is you are not allowed to do ANYTHING, if that worries you, then don't do ANYTHING.:rofl:

I understand what you are saying SK, I also notice that most of the photos you are showing are from "TRACKS"... (the one above)

Most of the others are not... and i aknowledge that you are not allowed to modify vehicles very far but you can upgrade things like

Fuel pump (in tank)

injectors (in head)

PFC (behind kick pannel & in glovebox)

cams (cam covers)

exhaust (within reason)

and to a certian extent twin lowmounts (like 25/30, GTRS), on the original manifolds

and your vehicle is capable of some awsome HP and without attracting ANY undue attention from the authorites, I drive for a living and around the southern sub's of brissie and even over the NSW border you have RTA setup like clockwork.. and "ALMOST" every time i go past one there is an IMPORT with the bonnet up and a 19-25 yr old looking at the cops (not knowing whats wrong with their vehicle)

I would hate to spend upwards of 3g only to find it gets a defect the first time the screemer pipe opens up. :Oops:

i aknowledge that you are not allowed to modify vehicles very far but you can upgrade things like

Most of the things you listed you are not allowed to modify without engineering. The only reason you get away with it is because they are hidden, or the cop doesn't care or know what they are looking for.

With a big single its going to be high mount, which means it will be obvious as soon as the bonnet is popped.

LW.

Most of the things you listed you are not allowed to modify without engineering.  The only reason you get away with it is because they are hidden, or the cop doesn't care or know what they are looking for.

With a big single its going to be high mount, which means it will be obvious as soon as the bonnet is popped.

LW.

Assuming the cop can pick the difference between a GTR and a GTST and knows that the GTR should have 2 turbos.

people here have been pulled over, and Vic being the worst.

Most of the time the big single isnt a problem.

Only is if you give em attitude or they do you for misbehaving on the street

Just like anywhere else. If you dont give them a reason to pull you over, you most likely wont be.

Wearing clothing that doesnt fit, with your arm out the window listening to 'thug rap' really loud and a hat on, expect to fit in to the stereotype and get pulled over.

I havent been pulled over in over 12months in my bright red loud import.

Anyway back on topic.

What about a single that is equal? As in the front and rear is the same, wheel size, housing size etc? Now assuming the turbo is set up correctly to say something that is more off set, but still suited properly, which would be better?

  • 2 months later...

What a controvercial topic . I think its possible to argue either case or should I say back either team .

IMO its not relevant to compare in line 4's to inline sixes because of their firing order and 180 vs 120 degree crank phasing .

There is something to be said for two waste gates and their flow potential particularly given the 3 cylinders and the mass flow from them . I've often wondered if the twin turbos for FIA Grp A used restrictors or was it the blow off valve that limited maximum boost . Also importantly exhaust manifold design , the short three branch may have less potential flow restriction and heat loss than a divided 3+3 into 2 single turbo design .

At the end of the day I'm going with a med-large single to get around the plumbing nightmare that exists with twins . With 3 litres and an RB26 top end I think a GT3540R possibly with an integral gate should be fine . I'm not that concerned what it'll look like but factory as much as is practical . I don't need race pace just nice lazy torque and enough squirt to keep the Commos and Coons in their rightful place (rearview mirror) lamenting in their expensive mobile lounge sweets ..........

Cheers A .

Interesting topic indeed, some alternative views for thought stimulation;

There is something to be said for two waste gates and their flow potential particularly given the 3 cylinders and the mass flow from them .

I want most of my exhaust to drive the the turbine, not out the wastegate and waste all of that energy. I reckon one wastegate is all I would need, in fact zero wastegates has appeal.

I've often wondered if the twin turbos for FIA Grp A used restrictors or was it the blow off valve that limited maximum boost .

They had a blow off valve that was bolted onto the plenum and limited the boost. Sorta like a Champ Car.

Also importantly exhaust manifold design , the short three branch may have less potential flow restriction and heat loss than a divided 3+3 into 2 single turbo design .

Yep, but they have uneven firing, I reckon an extractor flow 6 to 1 would be better if tuned correctly. Sorta like the R31GTSR homologated exhaust manifold.

At the end of the day I'm going with a med-large single to get around the plumbing nightmare that exists with twins.

That's pretty much the same reasoning as I went for.

:)

  • 7 years later...

Not really, 1.3L 3cyc per turbo V 2.6L 6 cyc per turbo.

Also turbo shuffle in the twin setup is also pretty annoying.

I recon that I can make a jig for a bolton single turbo suitting a Rb26dett if I can get hold a GTR for few weeks.

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • Have a look at that (shitty) pic I posted. You can see AN -4 braided line coming to a -4 to 1/8 BSPT adapter, into a 1/8 BSPT T piece. The Haltech pressure sender is screwed into the long arm of the sender and factory sender (pre your pic) into the T side. You can also see the cable tie holding the whole contraption in place. Is it better than mounting the sender direct to your engine fitting......yes because it removes that vibration as the engine revs out 50 times every lap and that factory sender is pretty big. Is it necessary for you......well I've got no idea, I just don't like something important failing twice so over-engineer it to the moon!
    • Yup. You can get creative and make a sort of "bracket" with cable ties. Put 2 around the sender with a third passing underneath them strapped down against the sender. Then that third one is able to be passed through some hole at right angles to the orientation of the sender. Or some variation on the theme. Yes.... ummm, with caveats? I mean, the sender is BSP and you would likely have AN stuff on the hose, so yes, there would be the adapter you mention. But the block end will either be 1/8 NPT if that thread is still OK in there, or you can drill and tap it out to 1/4 BSP or NPT and use appropriate adapter there. As it stands, your mention of 1/8 BSPT male seems... wrong for the 1/8 NPT female it has to go into. The hose will be better, because even with the bush, the mass of the sender will be "hanging" off a hard threaded connection and will add some stress/strain to that. It might fail in the future. The hose eliminates almost all such risk - but adds in several more threaded connections to leak from! It really should be tapered, but it looks very long in that photo with no taper visible. If you have it in hand you should be able to see if it tapered or not. There technically is no possibility of a mechanical seal with a parallel male in a parallel female, so it is hard to believe that it is parallel male, but weirder things have happened. Maybe it's meant to seat on some surface when screwed in on the original installation? Anyway, at that thread size, parallel in parallel, with tape and goop, will seal just fine.
    • How do you propose I cable tie this: To something securely? Is it really just a case of finding a couple of holes and ziptying it there so it never goes flying or starts dangling around, more or less? Then run a 1/8 BSP Female to [hose adapter of choice?/AN?] and then the opposing fitting at the bush-into-oil-block end? being the hose-into-realistically likely a 1/8 BSPT male) Is this going to provide any real benefit over using a stainless/steel 1/4 to 1/8 BSPT reducing bush? I am making the assumption the OEM sender is BSPT not BSPP/BSP
    • I fashioned a ramp out of a couple of pieces of 140x35 lumber, to get the bumper up slightly, and then one of these is what I use
    • I wouldn't worry about dissimilar metal corrosion, should you just buy/make a steel replacement. There will be thread tape and sealant compound between the metals. The few little spots where they touch each other will be deep inside the joint, unable to get wet. And the alloy block is much much larger than a small steel fitting, so there is plenty of "sacrificial" capacity there. Any bush you put in there will be dissimilar anyway. Either steel or brass. Maybe stainless. All of them are different to the other parts in the chain. But what I said above still applies.
×
×
  • Create New...