bighead

iTrader: (1)

this is a power graph of my VF34 turbo....for the doubters

381.5BHP , 357.7lbft TORQUE

http://www.imagehop.com/show.php?id=505dfd66c82de

Mods as follows:
VF34 turbo
Gruppe-S V2 headers and up-pipe ( lagged )
Power enterprise 550s injectors
MRT inlet pipe
APS front mount intercooler and Cold air kit
Walbro uprated fuel pump and fuel regulator
Scoobysport Downpipe, Magnex centre, Blitz Nur-spec back box
Motec M800 Ecu mapped by Mick Kehl


I would like to say a " Big thankyou " to all the guys at Prosport for all their help

RR

I never knew they could make that much power (vf34). Nice results.

bighead

iTrader: (1)

Yes RR....... so did alots of other fellow scoobynetters ,who kept saying it was mission impossible lol

but it not about bhp....it about how the car drives
now need to save up for the uprated clutch, gearbox, AP sixpots...........

Saxito VTR

Nice!

How much boost?

Pavlo

I think we said that 400hp was mission impossible. Did it get warm during the power run, plot says 29deg, and it has corrected (upwardly) the figure from 359hp as a result.

Paul

Andy.F

What type of race fuel did you use ?

Andy

RR

I am running a vf34 on my Ibiza 20v turbo it made 343bhp 303lbs ft @ 1.35bar (20psi roughly). I agree with Andy Race fuel must of been how it was done. I run optimax all the time and my figures where on this fuel.

bighead

iTrader: (1)

Andy...just your normal Optimax

Saxito VTR........I think about 1.2 Bar of boost

Pavlo ......it was making 400 a one point, but decide to keep it at 380 ( clutch/ gearbox )

bighead

iTrader: (1)

but RR did you have the mods that I have in your Ibiza ?

RR

I have IHI vf34 .18 housing
Induction Kit
Uprated downpipe
Btcc 100cel sports cat
2.5" cat back stainless steel Jetex exhaust
440cc injectors
4 bar fuel pressure reg
Uprated fuel pump
Pace 4 core chargecooler
Jabbasport remapped Ecu. always run on optimax

U made good figures i thought the .20 housing would struggle to make that kind of power assuming u r running the .18. A higher quality scan of your graph would be helpfull. Your boost levels are lower than mine. I have normally noticed with higher figures like u have there is always some form of trade off. But the bottom line is you have the graph to prove. Nice figures, good result.

Pavlo

381hp on 1.2bar.

I am going to have to get myself up there.

I really wish John Banks and Trout could have got some valid runs there.

Paul

Saxito VTR

Only???, I think that it must be more...

Cheers

bighead

iTrader: (1)

When I had the MD304 on the car it was making 340bhp and 299 blft of torque on the same dyno at Prosport but I did not like the spool up (it had the Tek3 software mapped by Bob Rawle)
Was orginally going to fit AndyF's TD05/06-20g but change to the VF34 for quicker spool up(was happy with 340-350bhp )
having change to the Vf it does feel 30-40 bhp more than my MD304 and of cause the Gruppe-S headers along with the Motec helps.

just my impression of the car after the mods is that it does spool up quicker , which was what I was after in the 1st place...the 30-40bhp gain is a nice bonus
If Petter can win the WRC with 300 odd horse ....I think 350+ is more than I need

Mike

Pavlo

Do you have a copy of the MD304 dyno run at prosport?

bighead

iTrader: (1)

Thanks RR ......your Ibiza must be very quick! .....but does it handle around bends

bighead

iTrader: (1)

I did Pavlo..... but when I sold the MD304 to " Daveo"(scoobynetter ) last month I give him the copy to vertifly the bhp that the turbo was making
I think that Ps20D ? had the same type of turbo on his car awhile back and he had a power graph on the same rollers at Prosport and his car was making 380+ bhp

regards....MIke

willy

Prosports rollers are well known for being a good RR.
I made 238 in Sept from my UK car.
It had full decat and panel filter.(td05)
It was exactly as I thought.
Well done Bighead.I saw your car on the ramps over this year.


*****

RR

Its setup towards track/ and decent A roads. Its not for damp back roads/country lanes. Its has a full suspension kit fitted, strut brace, Brembo 4 pots. With 307bhp/ton and 306bhp @ the wheels i aint had anything get close to it yet. MR340's are easy prey and Bmw m3's (E46) are very easy to leave behind as are 911 c4s's. I would not bother with any scoob below Sti level unless it was modded and looked like it may even be worth the optimax. With 274bhp/ton @ the wheels a classic scoob would need 460bhp @ the fly to play and a uk sti would need about 540bhp. I have never had a Scoob get close but i look forward to it happening.

john banks

RR, you're dreaming if you think 460 BHP at the fly is needed in a classic Scoob and I would be happy to demonstrate that to you

With only 434 BHP (with 31 BHP less it still had 350 at the wheels BTW ) my 60-125 time with a passenger in the wet was 8.1 (60-100 4.7 with two gearchanges). The increment should fall in your favour, but does it? Trouble is where your PWR is an advantage you can't get the traction, and after that raw power takes over.

I'm sure your Ibiza will take many Scoobies, but don't think it is invincible. Nothing has taken mine yet, but that doesn't mean I think nothing could or will.

Also remembering that RRs unfairly overestimate the losses from AWD, and in the lighter car, your weight will knock the PWR more than the heavier car.

chrome

some impressive numbers there Bighead..
what is the base car btw? P1?
I forgot..

Graph is interesting too

PICKLE

If RR's Ibiza is the same one that was @ Castle Combe in the summer (One of the shows there can't remember which) then I am inclined to beleive what he says!!
We watched in amazement at the way the little yellow Ibiza just blitzed evrything on the track!!. If I hadn't seen it with my own eyes I would have doubted it, but he was lapping quicker than anything out there (we timed him on our watches) There were alot of big bhp cossies etc there, and he was doing them on the straights in parts!

A mate who owns a VW had to go and find him to ask the spec, and we were shocked that relatively little had been done to the car.

As JB said, there are subaru's that would give it a hard time, but for sheer surprise/shock factor, that Ibiza takes alot of beating!

john banks

This was posted a while back on a Cupra BBS:

************* Acceleration Test ****************

Vehicle Bill B Seat

Time 15:37

Date 4/14/04

Vmax 159.32 mph

Dist Vmax 2289.218 m

Time Vmax 43.20 s



Speed Time Distance AccelG

00010 0.79 1.653 0.58

00020 1.67 7.494 0.55

00030 2.52 17.050 0.54

00040 3.36 30.159 0.54

00050 4.56 53.669 0.50

00060 5.38 73.988 0.51

00070 6.39 103.600 0.50

00080 8.17 161.810 0.45

00090 9.45 210.399 0.43

00100 11.06 279.144 0.41

00110 13.43 389.971 0.37

00120 15.72 507.841 0.35

00130 18.77 678.637 0.32

00140 24.62 1028.393 0.26

00150 31.19 1455.921 0.22

Ability on track will be related to driver, tyres and suspension, a bit of a surprise and power help, as well as it being dry.

But the figures above whilst impressive in isolation are not 400+ Subaru figures, even in gear. I note the 60-80 is 2.8 on the Ibiza, I've recorded a 1.6-1.7 for the same increment with a fairly low fuel tank and no passenger. Torque, traction and little lag are the keys IMHO.

Perhaps honest traction, lots of torque, little lag, and conservative rollers mean that my acceleration times are not bad for the power claims I make

I would be delighted to drag against at 381.5 BHP VF34 equipped Subaru Then we'd see what difference apparently only 50 BHP can make I suspect....

Andy.F

Those Seat times are almost identical to my 2wd cossies times (lighter 3 door version) a few years ago. It was running 340bhp at the time so they seem about right.

When I modified my Ra, although the acceleration to 100mph was quicker than the cossie, it needed 370 bhp to do similar lap times around knockhill.

I'd agree that a lardy UK with say 300bhp wouldn't be in the same league but the power required to get there, certainly isn't as high as RR suggests.

Andy

RR

Ok a classic scoob needs 350bhp @ the wheels to have 270bhp/ton @ the wheels. Just by working it out on paper i was only 20-30bhp out. So for a classic to match in gear it would need 430-440bhp not the 460bhp i said i stand corrected i used a trans loss of 24% it was to much. It should have been 18-20%.

RR

No not same car, but similar setup.

RR

I still reckon a tasty scoob will be required to keep up. I just need to make 380bhp on my (back on topic) vf34 to keep me really happy.

bighead

iTrader: (1)

Yes base car is a P1 but was already modded (MD304 ,APS fr mount etc etc...was making 340 before present mods )

***** ..it seems like my car was at Prosport all through this Winter(waiting for parts, mapping etc etc ) , only just had the car back on the 23 rd Dec....in time for the snow

bighead

iTrader: (1)

Hey John stop baiting as 50bhp on identical cars is a big difference

Pavlo

Well, get your car on the black dyno in the new year and we will see just how far behind a 50hp deficit puts you.

Paul

john banks

RR, you are quoting WHP/ton figures like they are a proxy for acceleration. There are so many more factors. A classic Scooby weighs only 10% more than an Ibiza, and can put ALL of that power down, high WHP figures are only any use if you can transfer them to the black dyno. I have datalogs here with 1.8s 60-80 mph from my Scooby when it had 356 BHP If either of the VF34 cars can do that I will eat my hat I would like to underestimate my power figures and let the acceleration do the talking. Otherwise you leave those of us who have been through many engine and turbo iterations a bit incredulous at supposedly incredible results from minimal spec. 382 BHP at 1.2 bar is the sort of performance you expect of a 20G with a 2.5. 50 BHP is naff all difference, but the difference between the car with the VF34 and 2.0 and the P450 and 2.5 is a bit more than that....

If a 430-440 BHP Scooby is required to keep up, then where are the figures from the Ibiza that show something similar to 60-125mph in 8.1 seconds RR? Or quarter mile terminals over 120 mph? Pick any increment you like, the 430-440 BHP Scooby will cream you guaranteed if the power is what I would call a genuine 430-440 BHP.