Got Over 400kw Atw?

[tricstar]

Yeah the R3C is savage ( and has seen off half a dozen gearboxes ) but I've done about 40k kms in a few years and am impressed with its durability. For example: the other day I limiter launched twice in second thinking I was in Rwd but was in max 4wd . I reckon that would be enough to fry most clutches. I do agree the R3C isn't the right clutch for us, but in the right application ( not sure what that is ) I reckon it would be awesome.

[Ecotechpower]

4.4 ecotech. 12.5 compression. 265@50 cams. Tune. Exhaust. Itb's 10500 rpm redline. 406 rwkw. E85. 10.6 1/4 mile

[Ecotechpower]

4.4 ecotech. 12.5 compression. 265@50 cams. Tune. Exhaust. Itb's 10500 rpm redline. 406 rwkw. E85. 10.6 1/4 mile

[portaz]

Rb26

Eagle rods

Cp pistons

Tomei type b cams

Tomei gears

Mild head porting

Exh manifolds ported

Rotomaster 2860-5

2200cc injectors

120mm intercooler

Adaptronic ecu

Lc-1 wideband

Tomei dumps

Jim berry full Monty clutch

Apexi front pipe

100 cell cat

3.5" exh to x force cannon

B/c valve springs

Mac valve controlling boost via ecu

Best run of 360. On low but left it fat at 350 ish 19 psi

426 kw on 26 psi both united e85

Interestingly was 415 and we cracked airbox (std) and jumped to 426 so I will mod it. Another tuner said couldn't crack 400 with pump (walbro e85) and airbox or that I couldn't go over 24 psi on -5 guess he was wrong

Link to low boost run

[portaz]

Rb26

Eagle rods

Cp pistons

Tomei type b cams

Tomei gears

Mild head porting

Exh manifolds ported

Rotomaster 2860-5

2200cc injectors

120mm intercooler

Adaptronic ecu

Lc-1 wideband

Tomei dumps

Jim berry full Monty clutch

Apexi front pipe

100 cell cat

3.5" exh to x force cannon

B/c valve springs

Mac valve controlling boost via ecu

Best run of 360. On low but left it fat at 350 ish 19 psi

426 kw on 26 psi both united e85

Interestingly was 415 and we cracked airbox (std) and jumped to 426 so I will mod it. Another tuner said couldn't crack 400 with pump (walbro e85) and airbox or that I couldn't go over 24 psi on -5 guess he was wrong

Link to low boost run

[SiR_RB]

That is a dam solid number! Excellent result !!

Those walbro e85 pumps flow a lot just give em 14v, will you keep the airbox or go pods and a heat shield?

[Marko R1]

Great result portaz and proof that the airbox is in fact restrictive in this case

[R31Nismoid]

32 airbox always has been an issue. 33 on much better design, dual feed etc.

Good solid result. Be interested to see you go hit the 1/4! Too many '400rwkw -5' GTRs around at the moment that are failing to hit even 124mph let alone the 128-130 they should be, at least half a dozen now

10s gonna be EASY for you though me thinks, no fudge with your dessert!

[Piggaz]

32 box seems to fall over after 370-390. 33-34 air boxes can go well past that.

Having said that, the power you're making is not a bad result.

[portaz]

I'm keeping the airbox but will modify the lower half and sheild the area where the snorkel was, I'm really concerned about traction even with semis although a bit hard she looses traction in 3rd gear on high boost, is this common with 400 plus Gtr ? Thanks for positive comments guys and thanks to jez for a job well done. I had a few issues he fixed , a restrictive tee piece, and failing alternator which actually makes a huge difference to tuning. Again jez is best, the flames are less common now but I'm glad I got a vid of it lol

[DVS JEZ]

The car fought all the way to the end but was worth it

He should run 130mph, i ran 131mph with 402kw.

Time to test those skills out mate. Let

Me know and i will meet u at wsid

[DVS JEZ]

Ohh and we actually opened the airbox at 403kw as even that was a push.

[Deano 1]

All the 400+ kW -5 gtrs getting around with only 3.5inch exhausts is slow bashing that old 3inch = 300kw 4inch = 400kw myth around abit too!!

[Deano 1]

That's a Load of crap not being able to make over 24psi. I've made 32 psi with mine lol

[Sinista32]

Perhaps 24psi would be that mechanics safe level, not knowing the build parts n quality and/or not having E85 experience

[Pezhead]

It's really too bad my old Autronic SMC can't do flex fuel. I'm going to run a similar set up to Scott's with bigger cams. Change of fuel pump (and e85'n my system) would see 400's. So tempting but may have to wait for the next minor round of upgrades.

Great result there Scott! Really has me stoked for my build that will be similar -5 based set up.

[DVS JEZ]

Haha Deano. Ur 32 psi was unintentional

[portaz]

It was good experience all said and done and jez is very patient although his initial words of he likes difficult cars came back to haunt with this puppy lol, jez do u rekon leave box for street and switch to pods at track? Wish I bought them with me for testing bugger.

[SiR_RB]

Unintentional ? Make it INtentional....2 bar is where it's at

[DVS JEZ]

I reckon stick to modifying the airbox for now. The underside can be opened a fair bit. But u need to get cool air to the box aswell