Jump to content
SAU Community

Recommended Posts

im currently building a rb26 for drift

so far iv got

forged pistons

tomei pon cams and gears

700cc injectors

fuel rail

power fc

tomei gasket kit

now my next step is to choose the right turbo that is perfect to drift with (not laggy and comes on boost very soon)

i want a single top mounted turbo and want to make 350rwk

what do you guys suggest?

i have looked at the turbo thread but couldnt find anyone that has drifted with a rb26

i do have a gtrs off a rb25 but its a low mounted turbo, is there any way i can make it top mount?

please help me!!

thanks in advance!

  • Replies 60
  • Created
  • Last Reply

Top Posters In This Topic

GT35, same as everyone else mate, have a search.

More info here on GT35's than any other forum IMO.

However "not laggy" and 350rwkw do not really go into the same basket.

GT35, same as everyone else mate, have a search.

More info here on GT35's than any other forum IMO.

However "not laggy" and 350rwkw do not really go into the same basket.

Agreed. The GT35 will make the power you are after, however it is definetely not something i would call "super responsive that comes on boost soon". Problem is for 350rwkw your looking at a 700HP turbo which is something that flows around 1000cfm at over 1.3bar. On a 2.5/2.6L this means 4000rpm+ to start seeing a nice midrange. Look at compressor maps and peoples dyno graphs, dont look at peak power, but area under the curve and at what rpm different setups make diferent power, than judge for yourself how "responsive" you would call that.

One thing i have learnt over the years from these forums is people judge response very differently. One's persons responsive turbo is another persons lag monster.

Oh yeah forget about doing the single RB25 GTRS, would be more worthwhile keeping the factory twins.

Edited by PM-R33

I would look at getting a good head job :) with larger exhaust valves atleast and that will make it come on a little quicker.

My old car with a 25/30 with a 35/40 .82 made around the 445 rwhp with over 20psi in it. That was without head work though....

I would have thought that most would have gone a 30/40 which was recommended to me by Mike VINE for good low to midrange response. Will be pushing it to make that power though without a good Tuner.

I know Matty Spry from PITTS with a PFC with twin Z32's pulled that power from 25/30 with a 30/40 from a mates friends car which is and has been still going strong. Was at powercruise a couple of years ago and the dyno guy couldn't believe the power he was getting out of the 30/40. Wasn't much over 20psi either.

Imtorqing

depends on budget, ive found the blitz K5 better than the gt35r but its also double the price, other notable results ive had thru the shop on a rb26 are TD06sh-25g.

Rb26 and drift is an expensive setup, oil control must be spot on.

Should just stick with twins and go a pair of -9 turbos. If U must go single which isn't necessary for that power level, I'd go with a GT3076R .82.

nah the twins on a stock stroke 26 cant match a well setup single for low and mid torque. Ive got countless graphs proving this all on the same dyno... my dyno. There can be excepions but they come a setup cost that is stratospheric.

our old hack used to make 540odd nm @4000rpm most twins are about 50nm off this.

Edited by URAS
A GT3076 isn't going to make 350rwkw in a .82

Al has maxed his out @ 306rwkw or there abouts.

That is a solid 50rwkw shy really...

NYTSKY made 362rwkw with a 3076R and Denzo just made 374rwkw the other day...

your ignorance is always bliss

I couldn't care less what a dyno says until there is some real proof to back that up.

Of which, as usual, there is ... zero.

But then you do love your arguments without real evidence :)

Oh i see it is E85 - well that comes as little surprise, everyone seems to make a solid 40-50rwkw when changing from PULP (which everybody has access too), to E85 (which a lot of people do not)

It is not PULP 360rwkw...

There is no way the OP is going to make 360rwkw on E85 with 700c injectors, so he is clearly talking about PULP.

So its still back to exactly what i said, seems im not as ignorant as you are silly to put E85 results into a PULP thread... but that is fairly typical of you. :P

There's still only one servo to get it from in NSW... kind of limiting.

Unless you go E85, you are straining the GT3076R to get to 350. For safeties and simplicities sake I would go a 3540 as well.

If you don't really mind being down 30 or 40 kws, I would choose the 3076R cause it's more responsive.

If some one says they want a certain amount of power, i think we need to assume it is on 98 octane. It is a bit pointless telling some one they can make the power on "x" turbo, they go an buy it, try to make the power and can't. Then when they come back you say "oh sorry, i ment it would make that power on C16, E85, Nitrous..." etc.

I also wouldn't classify E85 as pump gas in Oz.

3076 with the wick wound rite up. gt35 to laggy for not much more power + on and off throttle they are laggy. t04z laggy.

just get a nice big wastgate so it wont spike. and id keep the revs under 7500. unless youve got a external oil pump.

oh. you will need some upgraded valve springs if you are going to have any hope in making your desired power.

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

    • I understand your sarcastic exasperation. But to be fair - the baffles do indeed fit OEM cam covers. They did omit to say that you need to do a bunch of stuff. But they do fit them.
    • Got started on the modification to make these splash plates fit over the long weekend. First the surprisingly time consuming task of swapping all the cam cap bolts to Tomei cam cap studs. I did the method of removing one bolt at a time, applying loctite to the stud, double nutting to torque as the manual described. Then carefully unlocking the nuts without disrupting the torque of the stud (and going back to re-torque a few times when it slipped). Finally applying the nut and torquing to spec. Repeat x28 Next up I went about removing the stock cam cover baffle so I could ensure it was fully clean after drilling for stud clearance.  As the blind rivets holding the baffle on were domed I used a punch to mark the center then used 4mm drill bit to carefully drill out the rivet without going too far part the baffle. As seen in other thread here is what is inside the stock baffles I decided on M4x6mm bolts to bolt the baffle plate back on with. I used a 3.3mm drill bit with some tape to mark the depth at ~8mm. Next was to tap the threads using a cheap bunnings kit M4x0.7. With the baffle removed I also drilled out the spot welds holding in the baffle plate oil returns. Unsure whether this was the best option or if I should have cut holes in the Hypertune splash plates to allow the oil drains to still function... time will tell. I then removed the the Hypertune splash plates so I could rest the cam cover on top and use a dab of grease to mark where the studs impacted the oem cam cover baffle. The most obvious spot was on the hump from the stock mesh is held. Using this hole as an anchor I bolted the oem baffle plate back into the cam cover and lined up the Hypertune splash plate. Marked the rest of the holes for the studs and drill those out too. Total 32 holes drilled and 12 threads tapped on the passenger side cam cover alone for this bolt on part that totally clears all OEM cam covers.. Drivers side next as well as some E85 safe fuel foam to fill the space behind the behind cam cover baffle plates. oh and some lock nuts for the splash plates of course.
    • I had the same previously, and it really shits me. They just run off red book averages or whatever as the maximum insured, there are never good quality cars available to buy for anywhere near those prices. I don't even understand why they do it. Sure having a customer overinsure then false claim is a risk, but how often does that really happen in the world, 1%? 0.1%? On the other hand, all 10-20% above redbook listed prices and charge 10-20% higher premium, surely that is more profitable for those cockroaches
    • My take on gg2 48mm, 54mm, 58mm, and 62mm compressor map for same size compressor vs gg1 : All gg2 only outflow gg1 above 20 psi. As all g gen 2 surge line at lower left of comp map move to the right, all gg2 sacrifice spool vs same size gg1, surge line move to the right worst for 54mm gg2. So for same size compressor if you want best response, use gg1, if you want max hp at >20psi use gg2 but you will be laggier vs same size gg1. Max compressor efficiency drops to max 75% on all gg2 vs max 76%-80% of same size gg1. Iirc lower efficiency means hotter iat less dense air so lower hp at same operating point of comp map. Also curious why gg2 is mapped to lower max rpm vs same size gg1 (only 48mm size both gg1 gg2 mapped to same rpm) : 54mm gg1 165,000 rpm  vs  gg2 160,000 rpm. 58mm gg1 150,000 rpm vs gg2 140,000rpm. 62mm gg1 145,000 rpm vs gg2 140,000 rpm. If gg2 can safely spin to gg1 rpm then they can flow a bit more than as mapped. Good thing that all gg 2 interchange compressor and turbine housings with same size gg 1. So gg1 owners can buy gg2 chra only if planning to boost >20psi.
    • My stuff is all with Shannon's, granted, I don't really have imports I'm driving on the road, however, I've had multiple cars at the same time with them. Presently we have the Landcruiser on laid up cover, Sarah's Kluger on full cover, and the house insured. About 18 months ago Sarah wrote her Subaru Liberty GTB off, insured with Shannon's, and the payout, and buy back of the wreck was super quick. In 2020 we had the VF Commodore totalled in a major hailstorm. Storm was on the Saturday, I called on the Sunday and lodged it, vehicle was towed on Tuesday night, assessment team called on Wednesday to say it was a total loss and get payout details, money was in the bank on Thursday morning. Have had a few other claims both at fault, and not at fault, over the years, and never had an issue with them.   Funnily enough, they're also the cheapest insurer I find for things like Sarah's Kluger.   I will say I'm less impressed dealing with them lately around "the experience", as a lot of their staff that you deal with aren't car enthusiasts. Shannon's has a much more main stream feel ever since they decided to become "big corporate", laid a heap of staff off, and then hired a bunch of non enthusiasts. At the same time they've been making a push to be less "call us and we'll personally have someone who cares help" to "hey, this computer can do stuff for you" and are trying to get more square pegs to fit round holes. (That's just the vibe I get from them). Again, have had no issues with claims with them, but get a bit of a "less personal" feel from them.
×
×
  • Create New...