Oh will you lot make your bloody minds up , if the IT is actually taken at the intake and on one day it runs with an IT of 40 Deg and the next it runs at 16 and for the sake of saying it the AT was 14 deg, does the corrected BHP figure not end up being the same if both IT temps are correct and taken from the same place?

From what everyone is saying the figure would only be untrue if the IT was not taken from the intake, please tell me why my IT is not correct and true.

It high IT at S4U is probably down to Len running the car with the bonnet down.

The IT/AT reading is only misleading if the IT reading is infact not taken at the intake, or am I wrong.

I dont care if you believe it or not and as far as I am concerned I could run at ANY dyno with my bonnet down and my true intake temp will be high so it makes no difference really where I run the car the IT will still be high (I would put money on it).

Cheers Iain

 

Nah all the AT and IT figures are all too far apart lol

The only thing driving everyone top believe that these figures are not true is the turbo that has produced them, perhaps you should open your minds to the possibility that what I have done has actually worked.

All this AT, IT, fudged figure crap is just getting boring now.

Cheers Iain

 

So, do s4u's rollers generally read similar to the others out there? How do they convert to power at the crank which you're quoting here?

360lbft and hanging on to 300lbft at 6500rpm would be completely unheard of at this spec surely? (ie. a little over 15% above the norm for a good vf35 setup)

Andy

 

I KNOW YOUR CAR DOES WHAT IT SAYS ON THE TIN Iain
If it was me i would have given up ages ago. but thats just because i don't have the same knowledge as you are anyone else (if they truly do have knowledge )

but again i'm a stubon ******* and well i like a good bit of banter and like to get involved and learn stuff.

By the time i understand all this stuff i think the thread will have died down

 

Look I found a another one

 

WHP = 303 hp

Like I have just said perhaps what I have done to the turbo has actually worked,

Cheers Iain

 

What did the car feel like before/after the latest mods and do you have dyno runs from before (either S4U or any other)?

Around this level, a jump of 40bhp makes a classic feel really different on the road (in my case it was 310bhp on a VF28 to 350bhp and now 360bhp with different turbos). The '**** dyno' should back up the figures shown by the rollers.

Andy

 

It's a good result for sure, but I suspect you benefiting from the overall setup being good and well balanced along with some good luck. I wouldn't hold out on being able to replicate the same result every time, that's not to say it can't be done again.

 

Sounds to me like he still has a lot to learn

TX.

 

Stick the boost graph up too pls, thanks.

TX.

 

I did not get a print of it yesterday but I will ask Len for a copy.

Cheers Iain

 

I haven't got a DAF & my IT/AT readings were both the same (18 - see earlier graph) ...

TX.

 

I have no doubt that all cars will respond different and getting 2 to respond exactly the same even to the same mods would be good going.

Look at it from my point of view.

The 2 UK cars that have been setup using a very similar overall setup including the same turbo work both made 20+bhp more on Bob R's road dyno than what he expected, then I run a 380 on the dyno, again 20+ bhp over the norm so from this side of the fence it looks like I am doing something right.

There are more cars with the same/similar setup to follow so lets see what they come back with.

Cheers Iain

 

The laws of physics tell us that 382hp from a VF35 is nigh on impossible hence the experts on here (I'm not one of em BTW) struggling with this RR result. It's that simple.

TX.

 

100% agree with that.

Cheers Iain

 

AT/ITs quite a bit different on all of those FFS!

TX.

 

Having had the car for over two years and having had it mapped, dynoed and run at Santa Pod after every major mod from Std - 310bhp - 325bhp - 349 bhp to its current state I would happily say that it has jumped at the very least 20bhp, it is way stronger all round compared to when it was 349. My best guess at my power prior to having the Dyno run was 370bhp and I am happy if it is 370, but it may well be closer to 380. My runs at Santa Pod are also very consistent so they are also a good marker of any improvements that have been made and they are all run on the same fuel and tyres etc.

Cheers Iain

 

I pointed that out earlier lol, its ok for these though as its not a VF35 pushing 380bhp

Cheers Iain

 

Better chance than getting 382.8bhp out of a VF35 !

 

 

Graph 1: GT35/42R 650bhp rated turbo

Graph 2: MD321T+ 475bhp rated turbo

Graph3: GT30 hybrid 450bhp rated turbo

 

Its not " your word against there's" as you put it, its your word against some of the finest Subaru tuners in the country...Just have a look back through the thread and see which ones have made comment and tried to explain the dyno plot yet you still continue to argue with them...

 

reading this whole thread is a head acke
i have been told by many that the surry rolling road is one of the best

it was a bonus that jgm also uses them for mapping.
but regards to the reading he got, id be the same if i was given the graft
but to save face, i would take the car to the surry setup.

any figure over the norm of 340bhp i would be over the moon with
id gladly chip in £1 towards it too to finally put this to rest

 

Any chance you could post some pics of your heatshield? I've got what I think to be a great heatshield around my RCM induction kit, with cold air feed. Infact it gets so much air, that when idling on the dyno the fan forces too much air and confuses the MAF making it want to stall

 

@Wheels or fly ? Fly still involves assumptions not universally shared among mappers They're a performance business after all

 

26 or 24%? lol

 

id still say if posable, get the car to a repatable rolling road, again i'll chip in a quid to the pot

then if the reading is around the same, no more arguing
i was always led to beleave these vf35's could only produse 340bhp
im sure others would chip in to get to the bottom of it.

all dougts will be at rest then.
its hit page 20 now.

 

340 is expected high, but you do get odd ***** that go a bit higher, but there is a limit to what a wheel can physicly flow.

 

You've forgotten what I said in my earlier post (open mind)

and gone and lost your sense of humour too ! (sad face) Last post (cheeky face)


One suggestion, if you want people to keep an open mind to accepting results they haven't seen before, you need to keep an open mind, & accept the possibility that they "may" be wrong !

 

can someone with proven BHP visit S4U and we can get a R/R comparison?

That'll rule out one point of contention