The Green Machine - SOLD!! - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

11th Aug 07 at 22:35

spec will be

x16xe bottom end (standard apart from ARP conrod bolts)
c16xe ported and polished cylinder head, 3 angle valve seats, skimmed head
260 degree profiled kent cams
Kent cam vernier pulleys
dbilas throttle bodies (45mm)
redtop blue injectors
Webber fixed FPR
4-2-1 supersprint manifold
decat
Scropion 2 1/4" exhasut system
SBD metal rollers
Kent cam belt
lighted flywheel
uprated clutch
F13CR gearbox
Quickshift

will run on standard c16xe mangment for a while, then gt rid of induction chamber, fit trumpets and use megasquirt managment

gavin18787

Premium Member

Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline

13th Aug 07 at 10:22

What would be an estimated preformance figure on that?

Drives supercharged Tec with torque

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

13th Aug 07 at 21:04

i would hope 150bhp on standard ecu, then about 170bhp with aftermarket managment and trumpets

Fad

Member

Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline

13th Aug 07 at 21:06

Hopefully you will be able to count you power increase this time jockey

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

13th Aug 07 at 21:26

hmmm yes, i was thinking a 30BHP INCREASE was alot

and i got a A in maths, shocking!!! but im glad there was an accountant there to correct me

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

14th Aug 07 at 16:45

RR pics

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

14th Aug 07 at 18:35

quote:
Originally posted by warren.g
i would hope 150bhp on standard ecu, then about 170bhp with aftermarket managment and trumpets

Id doubt you'll see anymore than 130ish bhp on standard management, with the standard rev limit. Need 7500-8000 revs to see decent power.

Also, would a "better" set of cams not be worthwhile?

[Edited on 14-08-2007 by Vaux Lad]

fuju64

Member

Registered: 17th Aug 06
Location: Bristol
User status: Offline

15th Aug 07 at 01:58

quote:
Originally posted by Vaux Lad

Id doubt you'll see anymore than 130ish bhp on standard management, with the standard rev limit. Need 7500-8000 revs to see decent power.

Also, would a "better" set of cams not be worthwhile?

[Edited on 14-08-2007 by Vaux Lad]

what are you talking about, theres people on here that have fitted dbilas tb's to a near standard x16xe and come out with figures of around 130-135bhp. they better be pretty good anyway cus i have a set at home waiting to go on my 1.6 too lol.

Butler

Member

Registered: 2nd Jun 05
Location: London
User status: Offline

15th Aug 07 at 02:32

I agree with Vaux Lad. Rob lees was topping out at around 7k revs before it had even peaked, made 130bhp with the Steinmetz TBs, was more left in it though just needed to rev a bit more. Can you not unlock these ECUs and use an aftermarket rev limiter?

Also - genuine question. For what reason do you want uprated conrod bolts?

gavin18787

Premium Member

Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline

15th Aug 07 at 09:01

I think warren mentioned them been a weak point in the engine

Drives supercharged Tec with torque

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

15th Aug 07 at 11:09

quote:
Originally posted by fuju64

quote:
Originally posted by Vaux Lad

Id doubt you'll see anymore than 130ish bhp on standard management, with the standard rev limit. Need 7500-8000 revs to see decent power.

Also, would a "better" set of cams not be worthwhile?

[Edited on 14-08-2007 by Vaux Lad]

what are you talking about, theres people on here that have fitted dbilas tb's to a near standard x16xe and come out with figures of around 130-135bhp. they better be pretty good anyway cus i have a set at home waiting to go on my 1.6 too lol.

Erm i talk the truth mate

You cant expect to whack a set of tb's on, with standard management and see a HUGE gain

By nature for NA engines to make decent power you need to rev the tits off them, the standard 6750rpm limit WILL stop you making decent power.
More agressive cams move the power band up the revs, making things even worse on standard limit/management

Also dont forget you can get around 125/130hp with the standard inlet system, and a mantzel etc.
With the tb's on you'll find that power is still rising when you hit the standard limiter, keeping the power increase to just 15/20bhp, compared to 30/40hp on proper management and a 8k limit.

Uprated rod bolts are needed to stop the big end cap leaving the piston at high revs, higher revs=more stress on the rod bolts. Hence ARP's being needed to hold things together once you get over about 7200rpm.

[Edited on 15-08-2007 by Vaux Lad]

fuju64

Member

Registered: 17th Aug 06
Location: Bristol
User status: Offline

15th Aug 07 at 11:11

when you rev to say 7500 and above the standard conrod bolts are a like gavin said, a weak point in the engine and the con rods can end up flying out of your engine. with the dbilas tb's you can get the dbilas chipped ecu with it with a raised rev limit to 7500.

fuju64

Member

Registered: 17th Aug 06
Location: Bristol
User status: Offline

15th Aug 07 at 11:12

i see

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

15th Aug 07 at 11:15

Dont get me wrong, you will see a nice gain.
Just the standard limit restricts you.

You could get a chipped ecu with a raised limit, but thats getting towards the cost of a proper mappable ecu, that you can change in future if you take the mods further.

fuju64

Member

Registered: 17th Aug 06
Location: Bristol
User status: Offline

15th Aug 07 at 11:18

heres a quick question for you vaux lad since you're here (slight thread high jack sorry) what bhp do you think i could be looking at with a stage 2 ported head, janspeed 4-2-1 mani, de-cat, backbox, drilled airbox,dbilas tb's with dbilas chipped ecu with 7500 rev limit. thats all the stuff ive got waiting to go on my car atm.

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

15th Aug 07 at 11:49

Probably towards 140-150, restricted by having to run a common plenum box for the Afm to connect to, assuming its a c16xe.
You might consider getting arp rod bolts too.

fuju64

Member

Registered: 17th Aug 06
Location: Bristol
User status: Offline

15th Aug 07 at 12:24

na its a x16xe, yea i will get some arp bolts in the near future when im less skint.

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

15th Aug 07 at 12:25

You will have to pipe the Map sensor into the tb's then too.

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

15th Aug 07 at 13:51

what is said is very true, as i was disapointed with my rr results, as people with less mods were getting same power, but then i realised with the manifold/decat this moves the power up even higher, so the only reason the car isn't producing the exepted 120bhp is do to that fooking rev limiter, which if it was set at 7500rpm i could see 125+bhp i would think (with some mild cams too).

as for the 1.6, with cams and throttle bodies, the power would be even higher up the rev range, so i will probley have to get a superchip (yes another one

) to raise the rev limt untill after market managment is bought!

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

15th Aug 07 at 13:52

and only getting 260 degree cams because first, im getting reprofiles done, and second the power will be high enough up the rev range as it is, so wilder cams would push it up even more!!!

Butler

Member

Registered: 2nd Jun 05
Location: London
User status: Offline

15th Aug 07 at 14:15

Whats your power curve like Warren? Did it peak?

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

15th Aug 07 at 15:03

nope, was still rasing hard on the rev limiter

will post a pic up soon

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

16th Aug 07 at 20:36

before powerbox

once fitted

as you can see the torque curve holds along for alot longer, and dosent drop off, which is why the car feels alot more powerful, even if the bhp didnt increase that much

but torque x RPM = horse power (not the actual formula! ) so should more made more power im sure

torque is actualy less, but is over alot wider band

[Edited on 16-08-2007 by warren.g]

[Edited on 26-08-2007 by warren.g]

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

17th Aug 07 at 17:29

Looking the the graph, it definently needs a re-map. The RR calibration looks spot on too, the lines cross at 5252

The torque line is better than my standard inlet 16xe printout, mine peaks higher(with it being 1598cc), but yours stays high throughout the revs.

[Edited on 17-08-2007 by Vaux Lad]

Warren G

Member

Registered: 14th May 06
Location: Kent
User status: Offline

18th Aug 07 at 19:38

well tbh needs a remap and rasied rev limit - but it aint gonna happen!

do you think a enclosed performance air filter would improve things?

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