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Author Tuning 1.6 GSi?
CRB 553
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Registered: 5th Apr 02
Location: NE Drives: Punto GT
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14th Apr 03 at 17:36   View User's Profile U2U Member Reply With Quote

Need advice on how to get the most out of a 1600 16V, without using a turbo.

Cheers
Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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14th Apr 03 at 17:40   View User's Profile U2U Member Reply With Quote

http://www.sbdev.co.uk/


[Edited on 14-04-2003 by Adam_B]

[Edited on 14-04-2003 by Adam_B]
Daimo B
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Registered: 20th Mar 00
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14th Apr 03 at 17:51   View User's Profile U2U Member Reply With Quote

Throttle bodies

Speak to Andy Hamilton (Andy) for the spec on his 1.6 16v 220bhp beast
PanaceA
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Registered: 2nd Apr 03
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14th Apr 03 at 17:55   View User's Profile U2U Member Reply With Quote

Read the spec of Davys/Rentons Corsa GSI in Redline. 151Bhp, 0-60 in 6.3 seconds!
luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
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14th Apr 03 at 18:21   View User's Profile U2U Member Reply With Quote

TBs on a 1.6 is the best route, esp. when u see that SBD do a 180+ kit and then if ur brave uprate internals further and slap in 50bhp of NOS, lol bake patata scoobies
CRB 553
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Registered: 5th Apr 02
Location: NE Drives: Punto GT
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15th Apr 03 at 22:21   View User's Profile U2U Member Reply With Quote

Any got any experience with a pipercross viper?? They r expensive but sound fairly gud.....
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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15th Apr 03 at 22:24   View User's Profile U2U Member Reply With Quote

expensive and only good if you have a decent aftermarket manifold and plenum. Pesonally i would stick with drilled aribox with airfeeds and K&N panel filter. You will see good results with this. Pipercross is mostly for looks IMO

Dave
Miner
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Registered: 28th Aug 02
Location: Ayrshire,Drives: Corsa 12v & CBR600Sport
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   15th Apr 03 at 22:41   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Daimo B
Throttle bodies

Speak to Andy Hamilton (Andy) for the spec on his 1.6 16v 220bhp beast


Holy shit! SBD race kit? What's it like to drive?
Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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15th Apr 03 at 23:28   View User's Profile U2U Member Reply With Quote

Dont know the spec, but should be ok as long as it doesnt have a stupidly lumpy cam. but it will probly drink like a fish.

[Edited on 15-04-2003 by Adam_B]
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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15th Apr 03 at 23:51   View User's Profile U2U Member Reply With Quote

yeah patricks fuel economy is non-existent.
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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16th Apr 03 at 00:29   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Adam_B
Dont know the spec, but should be ok as long as it doesnt have a stupidly lumpy cam. but it will probly drink like a fish.

[Edited on 15-04-2003 by Adam_B]


Doubt you can get 220 bhp without a stupidly lumpy cam that puts the power where most people can never dream of going!

Tuning these engines depends purely on your budget, for 500 you can get a very good power increase. Or for 2500 you can get an excellent one. Depends how far you want to go.
Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
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16th Apr 03 at 07:46   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Adam_B
Dont know the spec, but should be ok as long as it doesnt have a stupidly lumpy cam. but it will probly drink like a fish.

[Edited on 15-04-2003 by Adam_B]


It's a little bit lumpy until it comes on cam at around 4.5K. But that doesn't really matter cos the powerband is clean and flat all the way to 9000rpm OK, so it's not so great if all you want to do is pootle to and from Tescos, but on the open road is mucho fun

One more thing, there's a myth that TBs drink petrol. They don't - in fact at light throttle, my fuel economy is just as good if not better than the standard car. Of course, that changes when you press the pedal to the metal... But if the TBs are returning very poor fuel economy under normal driving, all it means is that the TBs haven't been set up and mapped properly. And I think that's exactly the case with patrick's engine.
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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16th Apr 03 at 10:35   View User's Profile U2U Member Reply With Quote

Patricks engine hasn't been mapped because it doesn't have mappable engine management! Its the same with everything, BHP = Fuel, how much so depends on engine design. But it would be impossible to have a fast car driven fast that didn't drink it!
Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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16th Apr 03 at 10:46   View User's Profile U2U Member Reply With Quote

cool, what cams are they ?
luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
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16th Apr 03 at 12:06   View User's Profile U2U Member Reply With Quote

he has Dbilas throttle bodies, their not really TBs unlike SBD ones
CRB 553
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Registered: 5th Apr 02
Location: NE Drives: Punto GT
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16th Apr 03 at 16:39   View User's Profile U2U Member Reply With Quote

How much difference will cams make?
Wot do i wanna get?
Daimo B
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Registered: 20th Mar 00
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16th Apr 03 at 18:10   View User's Profile U2U Member Reply With Quote

Depends on how far tuning wise u wanna go.

256
264
270+
Miner
Member

Registered: 28th Aug 02
Location: Ayrshire,Drives: Corsa 12v & CBR600Sport
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17th Apr 03 at 01:02   View User's Profile U2U Member Reply With Quote

Biggest limitation is the amount is the cam lift as most modern engines run high comp to achieve greater efficency & economy. This is achieved using shallow valve pockets on the piston & limits ur choice to little more than fast road unless ur planning a rebuild.
Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
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17th Apr 03 at 07:00   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Daimo B
Depends on how far tuning wise u wanna go.

256
264
270+


Or you can go for something slightly warm like 295/295
CRB 553
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Registered: 5th Apr 02
Location: NE Drives: Punto GT
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17th Apr 03 at 08:47   View User's Profile U2U Member Reply With Quote

thanx guys but any1 care to explain these numbers???
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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17th Apr 03 at 09:35   View User's Profile U2U Member Reply With Quote

I'm picking up my pocketed pistons today!

I've been told that you want to put 60 thousands of an inch deeper pockets in the pistons, and then take 25 thou off the head to make up the lost compression with a bit extra.

Im going to be running piper 285 cams, they apparently clear the pistons, but if you want to use vernier pullies and time them in properly then you dont want to risk contact!

 
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