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Stock Rb26 Power Limit On E85

usmair

By usmair,
in Engines & Forced Induction

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jukic.j Rising Star

jukic.j

Posted
Posted

Sorry to crash thread but i'm trying to find some quick answers without starting a new topic. I have an R33 GTS-T with a GCG Highflow turbo (XTRGTST). What power range could I excpect to get out of it?

http://www.gcg.com.au/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=337&category_id=34&option=com_virtuemart&Itemid=101

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SimonR32
SimonR32

My first motor died after about 4 years with varying levels of power from 450kw to 550kw. It died a sad death when it dropped a valve guide (it had actually dropped 11 of them but the others had shot

usmair
usmair

racing at GTR  festival 

usmair
usmair

Thread bump Update on my stock bottom end. made 480-500kw on JEM's dyno with a 8374 w 1.05 rear on e85 - Mild head work with small cams - stock crank, rods and pistons - stock

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Hadouken Grand Master

Hadouken

Posted
Posted

ok so i cant wait for the ol' 30 to be built, i have got my walbro e85 fuel pump and my injectors will be here next week then its off to Jez to get this happening

should all be done in the next few weeks so il post up the results...

Has jez touched you your car yet?

SiR_RB Grand Master

SiR_RB

Posted
Posted

Yes he did....it felt good he said

For some reason it was running out of fuel, wasn't the injectors coz they were at 75%,

Made about 360ish at wheels.....we did see more then 370 though

Gotta run a few tanks of ethanol through it, change the filters/clean the fuel filter sock and go back to make sure everything is 100%

Huge difference in torque and thrust lol

  • 1 year later...
arsnic_apple Enthusiast

arsnic_apple

Posted
Posted

What tends to break on these at this power level? Do they normally just spin a big end or do they throw a rod out the side of the block haha?

Im running a 35r at the moment with just over 500hp and was thinking about changing to e85 for a bit more but a bit unsure if its going to hold

up to the extra power or not and what will break if it doesnt.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

e85 would allow you to run a much smaller turbo for similar power levels, making the car much more responsive and faster overall.

Who knows what will break and when, but at least there will be no DET which is what usually kills motors, built or stock.

Ethanol will give you more torque, but the way the power is released during the stroke should help with longevity, and your exhaust temps should be around 200c lower also. The only real downside is less K's to the tank.

arsnic_apple Enthusiast

arsnic_apple

Posted
Posted

So do you personally think it's worth pulling the motor out just to do the same oiling mods that you did and chucking in some new head studs and head gasket?

Haha your recent results Simon was what inspired me to put mine on e85

GTScotT Grand Master

GTScotT

Posted
Posted

If you are prepared to build the motor but want to try and get away without you can always try.

Whilst the motor is good for the power in described trim you should bear in mind that the longevity of the motor is also largely dependent on condition and the life up to that point. Much like tests on SR20s, lots of people kill them at 200kw and then others have tested them to 400.

Be it myself I would stay within the known constraints but would boost it till it blows. However I would be prepared to replace the motor should it grenade.

GL and keep up posted :)

arsnic_apple Enthusiast

arsnic_apple

Posted
Posted

Yeah i have the mindset that I'll have to build the motor eventually and to be honest the car really doesn't see a real hard life. Simon you did oil pump gears and bigger sump if i remember correctly? Did you change these yourself?

  • 2 months later...

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