The seriously quick Micra from scotland - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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big eck

Member

Registered: 20th Apr 03
Location: Tullibody. Drives - Audi B8 S4 & Fiesta Zetec-S
User status: Offline

14th Nov 06 at 22:04

This is a little update on it as most people on here love the engineering thats went into it

Taken from another site (local)

-----------------------------------------------------------------------------------------------------

Well as some of you may know, I had the car at the dyno. today to see what it was making with the addition of the new turbo & intake manifold.

Intial results are quite good at 393.5 BHP at just 10 psi, but the weird thing was where it made the peak power...right on the rev limiter at 8228 rpm!!!

The engine is at the stage now where it needs mapped on the dyno, as it was running lean (about 14.5) from pretty much idle to 6000 rpm, hence the much lower torque figures.

However, regardless of the results, it shows that there is plenty more to come.

With the lean running issue, is is doubtful that I will get up to Knockhill this Sunday (sorry for those who wanted a shot), but I'm sure you can understand that it is not worth risking the engine!

Here's the dyno. graph...

Compare this to the last time the car was on the dyno. with the GT28RS (0.64AR) & stock intake manifold (port matched, polished & 70mm N1 TB).

Boost at 14psi & 20 psi...

The only additions have been the O2 Induction manifold & the new AET Engineering hybrid turbo, called the GT297153R.

The spec. of the turbo is as follows...

GT30 STYLE SMALL TRIM TURBINE WHEEL
GT35 COMPRESSOR WHEEL
0.86 A/R Turbine Housing (INTERNAL WASTEGATE)
0.5 A/R Compressor Housing
WATERCOOLED.
10 PSI Actuator

Connections : T/HSG - T25 STYLE INTAKE + DISCHARGE
C/HSG - 2.75" INTAKE (HOSE), 2" DISCHARGE (HOSE)

Any ideas why there has been such a shift in the power band?

Cheers

Dave

P.S. There were 2 runs as the operator didn't want to rev the engine

Nic Barnes

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Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 01:45

the greatest car ive ever had the pleasure of racing

tommosri

Member

Registered: 14th May 06
User status: Offline

15th Nov 06 at 02:02

any pics sounds like a beast what engine is in it

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 02:07

http://media.putfile.com/micra1

it beating an rx7

http://media.putfile.com/micra2

me getting my ass kicked by it

http://media.putfile.com/corsa-vs-micra

M6RKK

Member

Registered: 21st Jan 06
Location: Glasgow
User status: Offline

15th Nov 06 at 04:56

seriously quick....

i miss that corsa

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 07:04

interesting that the torque is made right on the limiter, iv never seen that before.

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 07:52

also interesting that it makes peak torque after it makes peak power

Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline

15th Nov 06 at 07:54

turbine effect

could be complety wrong.... just somethign i've heard about.....

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 08:20

quote:
Originally posted by Steve
interesting that the torque is made right on the limiter, iv never seen that before.

it says the rev limit is 8200 something??? tourque was made at 7400 and 7600 on the 2 different runs. not reading info again steve? or just doubting it as it isnt a seat or a 106?

Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline

15th Nov 06 at 08:23

think he is getting the plots mixed up on the graph.

My answer is mionce by the way

turbine effect

mav

Member

Registered: 19th Jun 01
Location: Scotland
User status: Offline

15th Nov 06 at 08:47

Mad wee thing..

you should know by now Steve doubts everything

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 08:48

sorry yes power is made after torque, serve me right for trying to look at them on my pda!

still i stand on my comment that torque is very high, not saying its a bad thing just something im not used to seeing

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 08:48

quote:
Originally posted by mav
Mad wee thing..

you should know by now Steve doubts everything

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 08:49

quote:
Originally posted by mav
Mad wee thing..

you should know by now Steve doubts everything

stfu i wasnt doubting anything stop jumping the gun, people are putting words into my mouth now

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 08:52

quote:
Originally posted by Steve
sorry yes power is made after torque, serve me right for trying to look at them on my pda!

still i stand on my comment that torque is very high, not saying its a bad thing just something im not used to seeing

id suggest that this is due, as it says in the information, to the running lean. id expect peak tourque to actaully be around the same figure as the bhp. so due to the lack of fuelling, it isnt actually showing the peak tourque figure that will probably be achieved hence the 264 @ 7600rpm. you have to remember steve, the tourque just doesnt suddenly disappear does it?

mav

Member

Registered: 19th Jun 01
Location: Scotland
User status: Offline

15th Nov 06 at 08:53

quote:
Originally posted by Steve

quote:
Originally posted by mav
Mad wee thing..

you should know by now Steve doubts everything

stfu i wasnt doubting anything stop jumping the gun, people are putting words into my mouth now

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 08:57

quote:
Originally posted by muppetsport

quote:
Originally posted by Steve
sorry yes power is made after torque, serve me right for trying to look at them on my pda!

still i stand on my comment that torque is very high, not saying its a bad thing just something im not used to seeing

id suggest that this is due, as it says in the information, to the running lean. id expect peak tourque to actaully be around the same figure as the bhp. so due to the lack of fuelling, it isnt actually showing the peak tourque figure that will probably be achieved hence the 264 @ 7600rpm. you have to remember steve, the tourque just doesnt suddenly disappear does it?

nope i just assume (righly or wrongly) that the torque is made (and maintained) when the turbo spools up. If this is the case does that mean the turbo isnt spooling until high up?

[Edited on 15-11-2006 by Steve]

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 09:09

or that the throttle wasnt applied fully till it was past its underfuelling????????? dont know really

be worth asking someone who understands these things as i dont really

[Edited on 15-11-2006 by muppetsport]

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 09:14

yes the most likely that the throttle wasnt applied maybe because thers too much power there to apply the throttle low down, sounds sensible

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

15th Nov 06 at 09:18

thats a hell of a lot of power for a tiny car. good stuff

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 09:21

nic your such a lovely lad you really are

[Edited on 15-11-2006 by Steve]

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 09:22

quote:
Originally posted by Steve
nic your such a lovely lad you really are

[Edited on 15-11-2006 by Steve]

wtf?

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

15th Nov 06 at 09:24

i was just saying how your a lovely lad thats all

ojcs a lovely lad too

[Edited on 15-11-2006 by Steve]

Nic Barnes

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Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

15th Nov 06 at 09:29

i fail to see the relevance of this to the rest of the thread.

Ojc

Member

Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
User status: Offline

15th Nov 06 at 09:47

Your a lovely lad TBH

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