Vauxhall Corsa Turbo

Author
Discussion

superkarl

60 posts

136 months

Friday 28th November 2014
quotequote all
NathanD said:
Yes both gearboxes, the previous five speed, and the new six speed have qualify ATB diffs. With the compression ratio, the engine can take 35 psi of boost, the GT2860RS maxes out at around 28psi, so will be interesting to see what it makes wink
the 60mm compressor actually maxes out at about 36lb/min at a pressure of about 1.7bar.
good luck getting that sort of power out of one though. Chemical cooling/octane needed

Jonny_

4,108 posts

206 months

Saturday 29th November 2014
quotequote all
That's bonkers power for a small hatchback! Looks like it's been well-engineered too. Quite the opposite of most modified Corsas - top work OP smile

NathanD

Original Poster:

64 posts

161 months

Wednesday 3rd December 2014
quotequote all
Thanks for all the comments guys smile

dai1983 said:
Nice one!

Back in the day I was a member of corsa sport and fondly remember the white B with Merit black bumpers, subtle alloys and a touring car spec c20xe. IIRC I'd did 0-60 in 3.98 or something on the drag strip. I had a 5 door 1.4 16v with 16 inch wheels, Irmsher Airfam, a strut brace which made a massive difference and a PVD BFO (big fk off) induction cone that was actually an Escort Cosworth part.

I occasionally flick through Performance Vauxhall and thought a LET engined c would be a hoot!
I acutally had mine features back in November 2011 (I think). I remember the PVD stuff, people lvoed it! the LET engines just dont rev, even with a larger turbo, good engines of course, but i just wanted something different wink

NathanD

Original Poster:

64 posts

161 months

Wednesday 3rd December 2014
quotequote all
griffin dai said:
Bet this goes well!

Didn't fancy the b204 route?
The saab engines are very good I must admit, but as much as you wouldnt expect, i'm not chasing huge numbers and an happy that my engine is the same engine the car came with... Plus the car is a lot more balanced with the Z18XE engine being a small block, over the B204 or Z20 engines...

Thanks!

NathanD

Original Poster:

64 posts

161 months

Wednesday 3rd December 2014
quotequote all
superkarl said:
the 60mm compressor actually maxes out at about 36lb/min at a pressure of about 1.7bar.
good luck getting that sort of power out of one though. Chemical cooling/octane needed
Thanks for the reply, yes, very true, looking at it my current flow rate is about 31 lb/min but we want to be making about 20psi of boost in the mid range to give more torque, and can also then utilise the water/ aquamist then too wink

Still need to figure out what is causing the bottleneck..

Any other advice is always welcome, thanks

The1Driver

727 posts

151 months

Thursday 4th December 2014
quotequote all
Very nice.

And I recognise this car from CCUK. I used to be a member on there.

JG93

163 posts

131 months

Thursday 4th December 2014
quotequote all
Very nicely done, love the seats

NathanD

Original Poster:

64 posts

161 months

Thursday 4th December 2014
quotequote all
Thanks Guys!

I'm sad enough to still be on CCUK, however its died a bit of a death now, no one is willing to invest good money in one!

It'll be a classic like the nova soon enough!

The1Driver

727 posts

151 months

Thursday 4th December 2014
quotequote all
NathanD said:
Thanks Guys!

I'm sad enough to still be on CCUK, however its died a bit of a death now, no one is willing to invest good money in one!

It'll be a classic like the nova soon enough!
Yeah. Popped over there a while back... Amazing how dead it has become. The place was so lively before!

NathanD

Original Poster:

64 posts

161 months

Monday 12th January 2015
quotequote all
Hi Guys, nothing much to report, just been enjoying the car...

Made a cheeky video with my new GoPro smile

http://youtu.be/381GHZYrd-M

Also, Did a bit of general maintenance over the weekend. one of my sidelight bulbs have up the ghost along with a bulb on my dash... So bought and fitted new ones smile

Also, I took up on the task of cleaning my brake calipers. As don't have dust seals they need to be checked and the exposed part of the piston cleaned ever so often... We'll it's been over three years! It also seems that my driveshafts have been leaking cv grease so had the pleasure of cleaning that off the inside of my wheels....

Just a couple of pictures:


[URL=http://s106.photobucket.com/user/Nathan_D_sri/media/my%20car/DSC_0008_zpsrjxxbwhu.jpg.html]
[/URL]

And back together


NathanD

Original Poster:

64 posts

161 months

Wednesday 7th December 2016
quotequote all
Wow, surprised i've let this thread get so far behind...

So here's a brief summary from where I left off...

The corsa is still going strong!

It managed to bend a torque mount, so adjusted, beefed it up, and re-fitted:






Made some better brackets for the oil cooler:






Took it round castle combe!


Snapped the throttle cable - and did a high quality bodge repair to get home:


Made new engine loom for the DTA, and Vauxhall ECU - I was having starting problems, so we made new looms, and shortened the cable route from the battery to the starter motor.. turned out the ecu had developed some condensation inside - so had to send it off to DTA for a new motherboard..




random engine shot:


fancy new coilpack bracket made:


fitted some new rubber:


Went to brands hatch for an evening open pit session:


killed the brake pads frown


so upgraded from Ferodo DS2500 to Ferodo DS1.11's smile


Had the mapping adjusted again - makes 321bhp now smile


And some photos from Brands:









LittleEnus

3,218 posts

173 months

Wednesday 7th December 2016
quotequote all
Very nice indeed. Tasteful and brutal!

Thanoj

82 posts

92 months

Wednesday 7th December 2016
quotequote all
Would it have been easier/better to have done a Z20LET swap? Not bashing, just wondering as they would put out the same amount of power smile

chrismc1977

854 posts

111 months

Wednesday 7th December 2016
quotequote all
Nice- mapped by Steve Greenald??

Mike1990

962 posts

130 months

Wednesday 7th December 2016
quotequote all
Followed this on CCUK and i've always liked it. Always liked the 1.8 SRi aswell. Quite an underated Hot-ish Hatch back in the day. Would love a good OEM+ one to run along side my 'Burg as they really have aged well IMO.

NathanD

Original Poster:

64 posts

161 months

Wednesday 7th December 2016
quotequote all
Thanoj said:
Would it have been easier/better to have done a Z20LET swap? Not bashing, just wondering as they would put out the same amount of power smile
It would have been easier, but not better, personally I dont rate the Z20LET engine, and they're not particularly high revving engines. Also hate the F23 box... When we started the build we didnt realise it would be this intense, and in hindsight it would have been better to go with the smaller Z16LEx from the corsa VXR and fit a stroker kit to make it 1800cc...

NathanD

Original Poster:

64 posts

161 months

Wednesday 7th December 2016
quotequote all
chrismc1977 said:
Nice- mapped by Steve Greenald??
Steve Pitcher in fact, and Jim smile

NathanD

Original Poster:

64 posts

161 months

Wednesday 7th December 2016
quotequote all
Thanks for the other nice comments guys smile

Mr Tidy

22,065 posts

126 months

Friday 9th December 2016
quotequote all
Great thread OP - thanks for writing it. thumbup

I've always thought this generation of Corsa was a good-looking car, and given how long you have owned it fully understand why you wanted to start your journey with that as a base!

And it has certainly come a long way! 321 bhp sounds about right - didn't the 1.8 start life at 123 bhp?!

It's certainly been done well, and thoughtfully - it must be a blast on a track. Enjoy!

NathanD

Original Poster:

64 posts

161 months

Monday 12th December 2016
quotequote all
Mr Tidy said:
Great thread OP - thanks for writing it. thumbup

I've always thought this generation of Corsa was a good-looking car, and given how long you have owned it fully understand why you wanted to start your journey with that as a base!

And it has certainly come a long way! 321 bhp sounds about right - didn't the 1.8 start life at 123 bhp?!

It's certainly been done well, and thoughtfully - it must be a blast on a track. Enjoy!
Thanks for the kind words! Yes personally I agree and like the shape even now which has got to mean something!

The car has progressed as i have really - next plans will be to extend the steering column and do some custom work on the seats to get them to sit lower, as currently I can't heel/ toe in it..

You're correct yes, 123bhp standard - so its gained the best part of 200bhp - which certainly helps!