mark r

friend wants 400 bhp but he was gonna run greys i told him not to so how much will 86lb siemens run ,hes on a t34.will it just be a simple chip/injector change? and at what boost pressure will he be able to run

Miller 3

iTrader: (4)

the big siemens injectors will flow enough fuel for over 500 hp and 40+psi of boost

edit, if he only wants around 400hp id go for 55lb ones

mark r

wont the 56lb be at there limit ? sorry for got to add car 4x4 saff

boost mad

iTrader: (8)

As the miller man said.

I would go for 55s @ 400 hp

mark r

at wot boost would be safe?

tabetha

Easy to work out, look up the formula I posted on here a while ago, with the website addy where you just input the cc/lbs and details and hit enter does it for you.
What's wrong with greys ?, perfectly good and able IF mapped correctly, as my engine proves 0.97% CO, 137PPM GREYS T3/34 ported head and 200,000 miles on the engine, or is that bad ?
tabetha

mark r

the problem is tab is that were here in spain and there nobody to do a live map on greys so an off the shelf chip it is

Miller 3

iTrader: (4)

Id say on the 55lb's you could still run 32psi

BRAMMER

iTrader: (23)

I wouldn't bother with 55Ib - go straight for 72 or 83Ib as mine were near maxed at 441bhp

Staffi

iTrader: (1)

I have 72lbs and they'll piss 500bhp.....

boost mad

iTrader: (8)

Realy ? what Turbo ?

I thought 55s were bigger than greys and grey could do 450

Chip

iTrader: (3)

4 * 86lb are good for about 600bhp depending on your BSFC

mark r

dont think he wants much more than 400 as 4x4 box will shit itself

Staffi

iTrader: (1)

It'll shit itself with less than that..

Danny @ Enhanced Performance

iTrader: (3)

The 55 lbers will be good for 400 hp no probs and will do 450 hp with the right pump and pressure..
If you need a greys chip for your t34 engine give us a shout we can sort that for you..


cheers danny

Chip

iTrader: (3)

300 and use it hard and they die fairly often, at 400 3rd gear is properly on borrowed time!

hicost

I rum Siemens 83lb or whatever and they are way to much for my 400bhp engine. I am running F88 management and the duty cycle is backed right off. I would go back to greys but the spray pattern is better on Siemens, I would have gone to 55lb but we mapped the engine on the 83lb and I have run out of time for an event im on this weekend. To get the AFR to anything nice on tickover they are just about injecting!!

James

mark r

i did tell him that but hes wants more power had greens for a while now so if it blows which it proberly will he will find out sooner or later