danny-corsa
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Registered: 15th Mar 05
Location: Warwickshire Drives: Astra GSi 16v
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im looking into the same sort of tuning but this is the route i mite take as i need new stem seals soon:
1. get head ported and skimmed (possibly bigger valves too but not sure if there is much point if im only going to be running 150bhp after ive finished everything)
2. enlarged throttle body
3. full exhaust system inc. manifold.
and then after a bit of saving...
4. dbilas or lexmaul inlet manifold
5. re-mapable chip
does anyone know what sort of prices im looking at and can someone post up links to a company that sells them.
also does anyone know of a differant order i should do this in
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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im looking at throttlebodies on my gsi & aiming for 170-180bhp mark...
but will be about 2.5k mark easy... pistons, arp bolts, headwork, lifters, cams, tb's, exhaust manifold & system, management...
[Edited on 14-06-2005 by PaulW]
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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To run 150BHP from these 1.6 engines ya have to have TB's really if you try and get 150BHP from a 1.6 with the use of and afterarket inlet manifold you will be scratching for the odd BHP here and there to even get close, 138BHP is the best i have seen with an inlet maifold and head work etc.
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Jamie Walby
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Registered: 15th Nov 04
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Im taking mine to a RR in next few weeks to see what BHP its at then will take it back in about 50 years when i've had all the parts sorted  ! As far as i'm aware its standard!
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danny-corsa
Member
Registered: 15th Mar 05
Location: Warwickshire Drives: Astra GSi 16v
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i think i could live with 140bhp i dont really have the money to be buying throttle bodies and 140 will do me till im 20-21 and then i can think about an LET!
what would i need to get to produce 140bhp???
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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quote:
Originally posted by danny-corsa
i think i could live with 140bhp i dont really have the money to be buying throttle bodies and 140 will do me till im 20-21 and then i can think about an LET!
what would i need to get to produce 140bhp???
brosters spec... 138bhp...
Piper stainless de-cat
Magnecore ht leads
PiperX Viper induction kit
Lexmaul inlet manifold
Ecotek Valve
BFO cat back system
Unichip custom map with raised limit to 8kish
Supersprint stainless 4-2-1 exhaust manifold
ported polished head
kent fast road cams
fse boost valve
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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Brosters motor, is the best i have seen from a 1.6 with inlet, its rapid for what it is, goes right off the clock, me and him have raced when i had 132bhp and his top end was so much better than mine
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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ive not raced him in my gsi yet but he wants to race, says my car is a bit of a funny one as its doing things & sounding like something it shouldnt be...
only difference is his pulls past 6750rpm where my limit is but from what I could tell, being in both, they seem to pull the same, except his has the kick at about 3500-4000rpm when the cams come to life...
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Jamie Walby
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Registered: 15th Nov 04
User status: Offline
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quote:
Originally posted by danny-corsa
i think i could live with 140bhp i dont really have the money to be buying throttle bodies and 140 will do me till im 20-21 and then i can think about an LET!
what would i need to get to produce 140bhp???
This is what I am thinking! Would like the extra power etc.....but insurance for an XE would be too much so like you said, would be happy with a 140bhp 1.6 for now! Once I finish my Corsa I won't be getting another one! 
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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you'd have better chance insuring a 2ltr corsa than a highly/midly tuned 1.6i quoting 140bhp mark...
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
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My old motor was funny, it was rapid off the mark cos of my rev limit and hitting over 60 in 2nd gear but top end it would max out, best i ever got was 128MPH where as Brosters would red line at his raised limit in 5th!!!!. All these 1.6 engines are weird they do strange things sometimes
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Jamie Walby
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Registered: 15th Nov 04
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Really? Ah well! I have my mind set on modding the 1.6 now!
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Jamie Walby
Member
Registered: 15th Nov 04
User status: Offline
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quote:
Originally posted by Greasemonkey
My old motor was funny, it was rapid off the mark cos of my rev limit and hitting over 60 in 2nd gear but top end it would max out, best i ever got was 128MPH where as Brosters would red line at his raised limit in 5th!!!!. All these 1.6 engines are weird they do strange things sometimes
60th in 2nd! When we went to test drive mine Dad took it for a spin and he got it to just over 60 in 2nd then it started to hold back!!!!
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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As a guide i was 22 when i had my GSI, all mods declared and 4 years NCB 132bhp was costing me £1050 Fully comp
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
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62mph in second on my GSI was pulling over 7500rpm
Some 1.6's had an F15 gearbox some had a close ration F15 maybe this is why.
[Edited on 14-06-2005 by Greasemonkey]
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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i've had an indicated 132mph on the speedo @ 6700rpm in mine, also worked it out against the ratios for the box & for the 6750limit, its 132.6mph on the wheels & tyres I was using, so nae bad!
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Jamie Walby
Member
Registered: 15th Nov 04
User status: Offline
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quote:
Originally posted by Greasemonkey
62mph in second on my GSI was pulling over 7500rpm
Some 1.6's had an F15 gearbox some had a close ration F15 maybe this is why.
[Edited on 14-06-2005 by Greasemonkey]
Mines a 1997
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Murray
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Registered: 22nd Feb 01
Location: Scotland
User status: Offline
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i got a tuned 1.6 with 153bhp,
it was a pain in the arse tho.
specs:
pipercross air filter
mantzel inlet manifold
head work
piper fast road cams
double valve springs
uprated head gaskest
larger forged pistons
apr conrod bolts
lighten and balanced crank and flywheel
4 branch manifold
de-cat plus ashley exhaust
unichip and raised rev to 7800
cost about 4k and thats with very little labour cos family own a garage
want tb's but don't know if i can justify the money, reckon i'm losing a bit of power cos of the old pipercross filter - reckon a viper and decent cold air might get me 155bhp.
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Jamie Walby
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Registered: 15th Nov 04
User status: Offline
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Thats sounds cool mate! I assume it cost 4k over a period of time and you didnt do it all at once?
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jr
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Registered: 20th May 02
Location: Kent
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i can 99% say mine pulls right to the rev limit, im sure stu can vouch for this after the drive to PVS
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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Murray...... used to have a smoke GSi/Sport?
[Edited on 14-06-2005 by Adam Kindness]
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Murray
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Registered: 22nd Feb 01
Location: Scotland
User status: Offline
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yeah didn't do it all at once, would have been cheaper to tho.
did the cams, head and manztel and 4 branch at first.
doing this the car didn't feel that fast so went and got the unichip.
had 129bhp before the chip and 143bhp after.
the unichip totally transfromed it, smooth power and a real kick about 5500. but....
pistons couldn't handle it and fcuked all four of them within 3 hours of getting it setup 
so thought fcuk it & got it bored out and did all the work to the bottom end to make it strong enough then got it setup again, and its been fine for about a 1 1/2years now.
been told if i go for tb's i should see about 180bhp 
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Murray
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Registered: 22nd Feb 01
Location: Scotland
User status: Offline
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yup its the same one mate
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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met you years ago at strathy park i think
Hows it going?
Thought you bought a c20xe off langy for that car?
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Jamie Walby
Member
Registered: 15th Nov 04
User status: Offline
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quote:
Originally posted by Murray
yeah didn't do it all at once, would have been cheaper to tho.
did the cams, head and manztel and 4 branch at first.
doing this the car didn't feel that fast so went and got the unichip.
had 129bhp before the chip and 143bhp after.
the unichip totally transfromed it, smooth power and a real kick about 5500. but....
pistons couldn't handle it and fcuked all four of them within 3 hours of getting it setup
so thought fcuk it & got it bored out and did all the work to the bottom end to make it strong enough then got it setup again, and its been fine for about a 1 1/2years now.
been told if i go for tb's i should see about 180bhp
So would you recomend saving for everything and getting it all fitted at once then! Even if it does take a few months to save and accumulate all the parts?
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