i know that bhp is worked out by measuring the pull on the rollers/dyno and revs...but how do u get a higher torque engine...mine is 420bhp/370ftlbs....how do u produce more than ur bhp figure....cheers Pete

 

nitrous??

 

You can't because of the 5252rpm thing isn't it?

On a similar note,in this months PPC.Dave reckons ATW (at the wheels) is rubbish,but gives no reason for it being so.

Any thoughts on ATW people?

 

larger capacity with less boost??oh ill shut up and leave it to the experts lol

 

But wouldn't that just offset it?

I thought torque was a product of boost,summant to do with PCP's?

I'm probably wrong.

 

easiest thing is more BOOOOSST!!!!!! or at least a huge boost spike to give you an almighty shove

how much boost do you run?

mine made 390lb/ft with a spike of 2.1bar....boost dropped quickly after though....

 

u see cars with more ftlbs than bhp....just wondered how

 

what would ATW figures be rubbish?
as these are the figures actually produced and not some calculation done by the rolling road?

 

set your rev limiter to 5252 RPM

 

....hits 30psi then holds 27/28psi

 

about 2.5 bar spike ought to bring the torque RIGHT up in the mid range!

 

boooooooooooooooooooooost is the biggest thing to increase torque by miles.

nothing makes a difference even close

 

Thats cheating!


Lots of different ways to make a car produce more torque, there is no one simple method

 

the easiest thing to do,without changing spec is to have a remap,but ask for a large'ish boost spike that can maybe be held for a little while,but then tailing it slowly as the revs build,so the injectors don't get maxed too much......i presume you are on greys?

 

i thought it was a maths equasion so much torque = so much bhp...

 

the gunship map has a big midrange boost spike doesnt it??

 

...no fella light blues...cant run more boost safely

 

fuck off big boost spike

 

greys,remap,big spike = big torque!
oh and you can sell the blues to recoup some losses (i never did understand why theyre more expensive than greys! )

 

there is a calculation;
Power [bhp] = Torque [lb-ft] x Speed [1/min] / 5252

i'd say your pretty much at the limit of your spec then lol.....you could squeeze more out by having the above 'adjustments'

 

dont think remap would matter im on a standard head so wouldn't flow anymore air...its just for the future....

 

yeah there is.

boost.

by far the best by a huge margin

 

i'm thinking about organising another RR day actually.....i've found a rollers which i beleive to be very good,certainly the best and most accurate i've been on to date (they seem accurate from the readings i and a few others got)

long way for you to come though,but you never seemed happy with the well lane RR

 

wasn't not happy....but it didn't make full boost on the rollers and the power graph/info was shite....and on my spec im not suppose to have this much power...even though standard cars made standard power that day aswell.....how far is ur RR

 

well it's in a place called Solihull.......have a look on AA,i bet it's a fair drive?

 

tis a ride out....2:30-3hrs....i 'll wait till warmer weather when i can turn it back up and have a higher spike again....

 

Why do modern WRC car's make so much torque compared to bhp?

 

booooooooooooooooost

and they restricted so cant rev high so bhp never gonna be that big.

 

What sort of boost pressure do they run? And how does that compare to say an average 500 bhp cossie?

 

uncomparable to a 500bhp cossie really, well most 500bhp cossies that is..WRC cars run huge boost through relatively small turbos (they have restricters fitted which ulitimately limits BHP)

500bhp cossies are usually Low Comp with large Turbos running maybe 2.5bar held

not entirely sure what boost WRC cars run,but i guess it's pretty high (40+psi) also they are much higher comp

 

Weston Performance.................

 

yeah you know it? very impressive setup....although i don't know if the workforce are clued up or not.....but they seemed ok to me,apart from all of the japscrap lying around

 

yeah, good setup though mate i think?

If you`re organising a RR Day there, let me know mate...

 

yep,they have a well sorted setup IMO......just thinking about it at the mo,but unlike the last one i'd need deposits/payment in advance....just to get definites i'll let you know if i do

 

Good man and deposits is a GOOD idea after the last disaster

 

i like Stavros....everything in the world can be sorted with MORE BOOOSTT.... COME ON...!!!!

 

big boost rules and breaks things

 

....Mmm gearboxes...

 

Theyre diesels most of em

 

Western performance have a Dyno Dynamic RR, I have just run on Surrey RR one with a Escort Cos making 394hp and 390ftlb at the wheels which worked out with the Subaru trans losses 504hp and 490ftlb at the fly which is very close to what these engines make on the engine dyno

Mark