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Author Civic type R or Astra GSI turbo
Screaming Vtec
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Registered: 29th Jul 03
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1st Apr 04 at 15:15   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Patrick
You'd have to change the whole way the VTEC engine works to fit a turbo. The two engines work in a completely different way.


How do they work in different ways

You can buy bolt on turbo kits for the CTR

Jules S
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1st Apr 04 at 15:15   View Garage View User's Profile U2U Member Reply With Quote

from that do I take it you dont understand either then robbo?
Robbo
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1st Apr 04 at 15:15   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by benny_h
from that do I take it you dont understand either then robbo?
of course i do
Robbo
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1st Apr 04 at 15:16   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Robbo
quote:
Originally posted by vibrio
quote:
Originally posted by Robbo
Hardly... a VTEC engine has NEVER broken, regardless of tuning... cannot say the same of a Vauxhall



not true. a few CTR's have had bottom end failures
a VTEC system has NEVER failed... if theyve had orblems it will be because it has been modified in soem ways
*a VTEC system has never failed*
Screaming Vtec
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1st Apr 04 at 15:18   View User's Profile U2U Member Reply With Quote

Benny.. simply put:

Imagine a highlift cam, and imagine a 'normal' cam..

VTEC engines have two sets of lobes, meaning that when 'vtec' kicks in, the car swaps from the 'normal' cams to very high lift cams..
The 'normal' cams mean that at low revs you still get 'standard' 2.0 power, but when you get to the changeover, you switch to the highlift ones..

Highlift cams at low revs produce LESS power than the standard ones, so the swap occurs when the power produced by the 'high lift' cam becomes more than the 'normal' cam..

The cams in the VTEC 'highlift' are VERY high lift, meaning that if they just used the high cam, the idle would be crap, low end power would be crap etc..

Jules S
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1st Apr 04 at 15:21   View Garage View User's Profile U2U Member Reply With Quote

Ahhhhh, I see. thakyou...

Any torque graphs available? its possible I may throw a vtec in mine one day if the motor goes pop
vibrio
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1st Apr 04 at 15:23   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Robbo
quote:
Originally posted by Robbo
quote:
Originally posted by vibrio
quote:
Originally posted by Robbo
Hardly... a VTEC engine has NEVER broken, regardless of tuning... cannot say the same of a Vauxhall



not true. a few CTR's have had bottom end failures
a VTEC system has NEVER failed... if theyve had orblems it will be because it has been modified in soem ways
*a VTEC system has never failed*


not really much of a claim that is it
Screaming Vtec
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1st Apr 04 at 15:25   View User's Profile U2U Member Reply With Quote

Why isnt it Vibro?



Vauxhall couldnt put it together and be that reliable..
vibrio
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1st Apr 04 at 15:25   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by benny_h
Ahhhhh, I see. thakyou...

Any torque graphs available? its possible I may throw a vtec in mine one day if the motor goes pop




the I-VTEC produces a falt curve of around 130lb ft from around 2000ish-5500rpm when it drops slightly before the VTEC comes in. this produces a gain to around 144lb ft which then drops off. hp comes from using high revs. the CTR requires a very short ratio box to make the most of its weak powerband.
DangerousDave16v
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1st Apr 04 at 15:25   View User's Profile U2U Member Reply With Quote

i'd have the Gsi, like someone said -torque not ragging the tits off it ,

ive grown up loving vauxhalls and i love this one
vibrio
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1st Apr 04 at 15:26   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Screaming Vtec
Why isnt it Vibro?



Vauxhall couldnt put it together and be that reliable..



no it is wrong. Honda do make good engines but they are only as good as the care it gets
Screaming Vtec
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1st Apr 04 at 15:28   View User's Profile U2U Member Reply With Quote

So you can waft along on a wave of torque?..

Ask yourself, whats closer to a race car?..

I hear Schumachers going to drop in a 2.5TD as it gives him 'torque'.. he's pissed off with having to 'rev the tits' off his motor..
sxi boy
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1st Apr 04 at 15:30   View User's Profile U2U Member Reply With Quote

Jules S
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1st Apr 04 at 15:33   View Garage View User's Profile U2U Member Reply With Quote

thats still shit torque though. and if you engine only generates all that power at high revs then it does tend to prove the fact that you have to rag the t*ts off the engine to get the (undeniable) best of it...

that and shave aboot 500kg off the weight of a CTR

edited to say: the same with an astra though re: weight

[Edited on 01-04-2004 by benny_h]
Patrick
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1st Apr 04 at 15:33   View User's Profile U2U Member Reply With Quote

But these ain't race cars, they are road cars.
Screaming Vtec
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1st Apr 04 at 15:35   View User's Profile U2U Member Reply With Quote

You've never driven a VTEC benny?

Its doenst feel like you are thrashing it when you rev it, as the car was designed to rev..

Think of a motorbike, you dont think shit, im thrashing this, just cos you have to rev it past 5k, when Vauxhall engines tend to get a bit thrashy..
Robbo
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1st Apr 04 at 15:37   View User's Profile U2U Member Reply With Quote

The only time i notice it drags is when u pull off in the wrong gear, say turn a big bend in 3rd instead of 2nd an then yeah, it takes a few secs xtra 2 move off
Jules S
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1st Apr 04 at 15:38   View Garage View User's Profile U2U Member Reply With Quote

nope mate, I havent....just trying to get a feel for it thats all.

A more simple question would be...if you are (say) at redline in third, and change up....would you get back into the lower cam range??? or stay in vtec mode...

edited to say: jesus, you MUST get lift off oversteer surely

[Edited on 01-04-2004 by benny_h]
Screaming Vtec
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1st Apr 04 at 15:38   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Patrick
But these ain't race cars, they are road cars.


Then wtf are you taking it to the strip for? and comparing performance figures?!!??!



Are you just a bit pissed off you bought an Astra?

personally id buy neither,

DC2 integra type R - 14.6 1/4 mile

Oh thats a 1.8 NON turbo
vibrio
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1st Apr 04 at 15:39   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Screaming Vtec
So you can waft along on a wave of torque?..

Ask yourself, whats closer to a race car?..

I hear Schumachers going to drop in a 2.5TD as it gives him 'torque'.. he's pissed off with having to 'rev the tits' off his motor..



love the way people bring up this race car metaphor. your driving on the road not a race track. your not in a race
Screaming Vtec
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1st Apr 04 at 15:40   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by benny_h
nope mate, I havent....just trying to get a feel for it thats all.

A more simple question would be...if you are (say) at redline in third, and change up....would you get back into the lower cam range??? or stay in vtec mode...


When getting on, you always stay in VTEC between changes..

For example my Integra revs to 8400 red line, but when you change it drops to approx 6-6.5 (VTEC is at 5600)

So yes you do stay in VTEC
vibrio
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1st Apr 04 at 15:40   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Screaming Vtec
quote:
Originally posted by Patrick
But these ain't race cars, they are road cars.


Then wtf are you taking it to the strip for? and comparing performance figures?!!??!



Are you just a bit pissed off you bought an Astra?

personally id buy neither,

DC2 integra type R - 14.6 1/4 mile

Oh thats a 1.8 NON turbo


clio cup not a VTEC engine does that
Robbo
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1st Apr 04 at 15:40   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by benny_h
nope mate, I havent....just trying to get a feel for it thats all.

A more simple question would be...if you are (say) at redline in third, and change up....would you get back into the lower cam range??? or stay in vtec mode...
depends, 8k in 3rd to 4th keeps u in vtec
Robbo
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1st Apr 04 at 15:41   View User's Profile U2U Member Reply With Quote

Clio cup is lighter, a LOT lighter and a lot smaler than a DC5, come on!
Screaming Vtec
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1st Apr 04 at 15:42   View User's Profile U2U Member Reply With Quote



and how heavy is the Clio? and how big is the clio's engine..

If I had a CRVtec (2.0 bottom end with B16 or b18c5 head) then I would be in the 13's

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