power expectancy?
Turbo Mini Forums

guys and gals
just a quick one, i have a 1275 turbo engine going to builder tomorrow(wednesday) it has a standard 1275 cam, metty turbo pistons and rods, gt crank, avanbar phase 2 head,aldon yellow dizzy with leccy internals(till i can afford a mj) running a t2 from a 1.9 td nissan, starlet turbo intercooler and oil cooler,
can anyone give me a rough estimate of the power it might put out??
cheers
kenny

boost?

i dunno?????? not sure what the t2 boosts at or to?

i dunno?????? not sure what the t2 boosts at or to?

A turbo will boost to whatever you set the actuator to. Within reason of course.

You need to decide on a safe boost to run with the engine that you have, and make sure that it is setup to fuel correctly.

i'll prob run low boost then, say 10psi?

Edited by kenny2 on 4th Jan, 2011.

120 - 130, maybe 140 at a push imo

Yes i moved to the darkside

Instagram @jdm_brett

sweeeeeet bring on the type-r's....

are you using the standard box and drops?

ben

as per the mj only till i can afford the sc's.

i would only run about 8psi then imo without destroying the box or the drop gears! but that is just my opinion, i dont know what everyone else thinks?

ben

standard mini gearbox's are safe up to about 130bhp, obviously t your own risk, i am at this sort of power atm, and im saving up for a sc box.

Audi s4 b5 - 470bhp & 486ft lbs

On 30th Apr, 2012 Brett said:
yeah stick the bit in and give it a wobble

thats grand i have a few spare box's and drops.... i have a jkd/sc final drive on a salsbury diff. might run that.

you will find if power levels approach above what has been mentioned, with your standard box third gear and the head set will shat its selfe, followed by the diff and the drop gears,

there are many ways around this, SC drops, standard box xpin diff....or sc gearset, helicals drops and
xpin diff

please dont froget the clutch especially if its tired

Edited by BENROSS on 4th Jan, 2011.

I think 130 is abit optimistic tbh. I'd say around the 100bhp mark give or take.

100bhp seems low as a gearbox destroyer. The Metro turbo had 94bhp and ran for may thousands of miles with no problem.

I run 110+ on a very used 1275 box, with no issues yet (probably done 8 to 10k miles).

The diff is the weak point, you will need a cross pin.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

wil_h i dont think he ment 100 as the gearbox threshold i think he ment 100 as expected power output.

but id even say that is a little low im running t2 12psi on a engine with 8.0 cr this outputs 120bhp at the wheels.
this has been running std drops and gears with x-pin dif for a few years now no problems

im just at the moment building a new sc gearbox for it as i am upping the power

"Tuning should be a compromise between what is possible and what is necessary"

10)Thou shalt always quest for more power

alot of it depends on driving style treat it carefull from standstill and should be fine aslong as the bearings and layshaft are ok and drop endfloat is spot on, any of the above aint then bang

always looking for them bigger bunches of bannanas

The standard used helical box in in our van is surviving with about 150 angry bananas and 170 curly wurlys being abused through it. It has s/c drops and a 4 pin diff though.

We don't drive it gently...

^ Surviving so far.

If something is worth doing, it's worth doing half of.

the worst it will have to do now is shunt the van in and out of the garage....

have a x-pin in my n/a can throw it in or have a salsbury lsd..
again i will be upgrading everythin eventually but at the moment i'm running standard parts as i've to pay for pistons for my turbo pick up this week so i'll be broke for a while,

At the build time I would not use std cam, it's just been made to moove a low mower,
secound hand mg n/a one will swit it nicely, giving a lot more uuumps for the same boost