Hi guys got back from [the racing line] after haveing the car mapped the results were 350hp/390lbs

just wondering if anyone else has seen a vf34 give that much torque as i only see around 350/350

mods
gems ecu
fmic
inducion k&n
full H&S exhaust
gt spec headers/uppipe
740 inj
forge actuator
forged 2.0l built be ZEN

will post printout up [membership]

 

Seems rather high to me. I'd of thought you'd be looking slightly higher BHP & lower torque.

What was the Turbo running at ??

 

yes thats about right for a VF34
its the same as mine full torque at 3000

 

that's a lot of ft out 2.0lt engine with a vf turbo where wa dyno and on what dyno

 

1.7 tail to 1.2,
Dyno Dynamics rolling road

 

1.7 on a VF34 is a tad on the high side I would have thought.

I think the norm is around 1.5 dropping to 1.2/3

Good result none the less

 

cheers daz, now lets see how long the gearbox lasts

 

At that kind of boost level I don't doubt it for a minute, I have seen 360lbft from 1.4 bar on a stock motor, so with forged internals and good boost no reason why not.

 

compared it to the graph u posted in vf34 output thred

whats this fud factor on rolling road i keep hearing about? some are 22 and some are 24? or do some read high and some low? matt at trl is 22

 

thats a brilliant readout

 

Yeah as MJ says, it's that larger-than-typical boost level (for a VF34) of 1.7bar that's netting you that peak 390lb ft. If your motor's built to take it, then fantastic!

How much of the rev band is that 390lb ft spread over though? It's prob quite narrow... so, roughly, what's the average lb ft figure that's spread over the largest part of the rev band (the important thing for the road)?

 

hmmmm,interesting.....

 

i would like to know the answer to that.

 

It all to do with the plugs....

 

For a good car on the road you always want a higher torque value

 

it never ends! im worried for the 5 speed box on this car,with nearly 400 lbft? im assuming the op is well aware of the gearbox poss probs at this level.defo great result tho!!! and i was worried of running 350lbft????

 

I'm sure he'll soon find out...

 

all depends on how the OP drives as to if his gearbox will last

 

the ty754 will take 400 ft lb of torque, so long as you drive conservativly

 

here we go again.......many have broke well under 400lbft,i wonder how many people running 350-400lbft have had the gearbox last for a long time?and how many have broke at this level?im with the understanding that 350 will be about tops.

 

The box's age, and therefore its wear to date, will add to the factors too.

I suspect a c.<75k mile MY99/00 TY754 8-bolter, if previously treated symapthatically, could last a while at under 400lb ft. Assuming NO launches/changing gear like a dick...

 

what about a 754 box that has double that mileage which has been looked after?fluids changed etc,no launches etc etc?

 

Well, the teeth of the gearsets would probably be significantly rounded off through general wear (double the wear! in this example) - thus presenting much less area for engagement. So you're asking a lot of torque to be transferred through smaller surface contact areas.... Go figure.

 

I'm running a VF22 and recently made 326bhp. Engine is from an sti ra and is fully forged though.



And yes, I know the gearbox will need to be updated very soon.

 

413lb ft from a 2.0 on a VF22!!! Is that just under only 1.4bar I can make out?! Are you sure that's not 413Nm i.e. c.304lb ft???

What jungle juice concoction are you running?!

 

413 lbft??? if this is correct im surprised the gearbox hasnt jumped out of the car!

 

Powerstation always read Nm or they did a couple of years back

 

just spoted that on the print out,it is indeed 413nm.

 

Ooops, yeah it's 413nm.. I'll get me coat.

 

"Beastra?... He's a very naughty boy!"