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Old 11-20-2001, 11:08 PM   #1 (permalink)
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Vtec vs. Si

what's the real difference between a 4g vtec and a 4g Si

I'm starting to feel that Vtec is all hype
if you ran them side by side, equal driver ability, how would it go
from start to finish give me a detailed race between the two
(like where the Si would trounce the Vtec and where the Vtec would trounce the Si)

how much distance do you need for the Vtec to start pulling away from the Si
how long does it take the Vtec to catch up after the Si start

details please

thanks
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Old 11-20-2001, 11:29 PM   #2 (permalink)
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Re: Vtec vs. Si

Quote:
Originally posted by dj_wawa
what's the real difference between a 4g vtec and a 4g Si

I'm starting to feel that Vtec is all hype
if you ran them side by side, equal driver ability, how would it go
from start to finish give me a detailed race between the two
(like where the Si would trounce the Vtec and where the Vtec would trounce the Si)

how much distance do you need for the Vtec to start pulling away from the Si
how long does it take the Vtec to catch up after the Si start

details please

thanks
The difference is about 1/2 to 3/4 of a second stock, in the 1/4 mile.

While the Si has nice low end torque, 156 ft. lbs, the VTEC has 158, and then pulls even harder once you get up above 5K rpms. The Si starts to level off at about 5,500 to 6,200. you can also tell the Si's 160 h.p. peak versus the VTEC's 190, which is slightly under rated.

I have driven both cars, and I mean many different cars, and the result was always that the VTEC very noticably outpulls the Si.

Mine ran high 14's stock, or a 15.1 at the higher slower strip in Commerce. I know a guy, who use to post in here all the time, Prelude RCR, who ran high 15's stock with an AEM CAI, and finally low 14's with a 90 shot of nitrous.

By that time my car was running slightly faster than his, with a LOT of modifications.

Top end is also noticably stronger in the VTEC, with a higher top speed of at least 140 stock.

The Si's torque does come on a bit quicker, but it runs out of steam to fast as the rpms rise, where as the VTEC just pulls harder and harder right to redline.
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Old 11-20-2001, 11:34 PM   #3 (permalink)
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Re: Re: Vtec vs. Si

Quote:
Originally posted by VeeTec


The difference is about 1/2 to 3/4 of a second stock, in the 1/4 mile.

While the Si has nice low end torque, 156 ft. lbs, the VTEC has 158, and then pulls even harder once you get up above 5K rpms. The Si starts to level off at about 5,500 to 6,200. you can also tell the Si's 160 h.p. peak versus the VTEC's 190, which is slightly under rated.

I have driven both cars, and I mean many different cars, and the result was always that the VTEC very noticably outpulls the Si.

Mine ran high 14's stock, or a 15.1 at the higher slower strip in Commerce. I know a guy, who use to post in here all the time, Prelude RCR, who ran high 15's stock with an AEM CAI, and finally low 14's with a 90 shot of nitrous.

By that time my car was running slightly faster than his, with a LOT of modifications.

Top end is also noticably stronger in the VTEC, with a higher top speed of at least 140 stock.

The Si's torque does come on a bit quicker, but it runs out of steam to fast as the rpms rise, where as the VTEC just pulls harder and harder right to redline.

thanks officer!
I'm gonna go look for some seafood now since it's past 1 am

oh, I don't think you heard, I had the NASTIEST tin of sardines yesterday
uke:
almost didn't stomach it
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Old 11-20-2001, 11:43 PM   #4 (permalink)
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Re: Re: Re: Vtec vs. Si

Quote:
Originally posted by dj_wawa



thanks officer!
I'm gonna go look for some seafood now since it's past 1 am

oh, I don't think you heard, I had the NASTIEST tin of sardines yesterday
uke:
almost didn't stomach it
My wife gets sick to her stomach when I eat sardines. They are good when I am craving them though!
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Old 11-20-2001, 11:54 PM   #5 (permalink)
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Re: Re: Re: Re: Vtec vs. Si

Quote:
Originally posted by VeeTec


My wife gets sick to her stomach when I eat sardines. They are good when I am craving them though!

ok, I can't decide if I should have smoked muscles or baked beans
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Old 11-20-2001, 11:58 PM   #6 (permalink)
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I drove starscream's VTEC, and my Si can't hold a candle to his, especially once VTEC kicks in.
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Old 11-21-2001, 11:52 AM   #7 (permalink)
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stock for stock, with equal drivers, a VTEC will win. 30 more HP...it better win. They aren't THAT much stronger though...a few mods on an Si will allow you to keep up just fine.
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Old 11-21-2001, 12:10 PM   #8 (permalink)
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Well hehe, If you can keep a vtec Lude out of vtec, then an SI can beat him..

cause basically that extra 30 hp doesn't kick in till vtec...before that..they are the same cars..both 160 rated

I can keep up with them till that point...
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Old 11-21-2001, 01:02 PM   #9 (permalink)
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I'll strongly agree w/ Can'tDrive55. W/ a few effective mods, you can keep up w/ & pull on VTECS, although you'd need to do a lot to beat them outright. That's common knowledge, though ... nothing special about that. But then again, who buys a VTEC & leaves it stock???
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Old 11-21-2001, 01:20 PM   #10 (permalink)
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In conclusion...VTEC is better!!! Si's dont get that cool vtec sound at 4800...so haha
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Old 11-22-2001, 11:27 AM   #11 (permalink)
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Quote:
Originally posted by VtecLudeR
In conclusion...VTEC is better!!! Si's dont get that cool vtec sound at 4800...so haha
at about 4000 we get a nice sound that kicks in when all the intake runners open up.
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Old 11-22-2001, 05:11 PM   #12 (permalink)
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Quote:
Originally posted by SLICK96
But then again, who buys a VTEC & leaves it stock???

:slowly raises hand:
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Old 11-23-2001, 12:04 AM   #13 (permalink)
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Quote:
Originally posted by cantdrive55

at about 4000 we get a nice sound that kicks in when all the intake runners open up.
Or, if you got your intake manifold ported & polished, and took the flapper valve out, you get an even nicer sound ALL OF THE TIME. Hehehe...
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Old 11-24-2001, 11:19 AM   #14 (permalink)
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Quote:
Originally posted by VtecLudeR
In conclusion...VTEC is better!!! Si's dont get that cool vtec sound at 4800...so haha
5200
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Old 11-24-2001, 11:22 AM   #15 (permalink)
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Re: Re: Vtec vs. Si

Quote:
Originally posted by VeeTec
The difference is about 1/2 to 3/4 of a second stock, in the 1/4 mile.
Thats about right, ask cantdrive55
At the time of the race, he had an AEM CAI and I had a short ram on my JDM H22.

Although, it the race was between his Si, and my car when it was an Si, I think he would have an edge due to my extra 60 or so pounds of 4WS equipment.
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Last edited by Absolut; 11-24-2001 at 11:31 AM.
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Old 11-24-2001, 11:28 AM   #16 (permalink)
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Re: Vtec vs. Si

Quote:
Originally posted by dj_wawa
how much distance do you need for the Vtec to start pulling away from the Si
how long does it take the Vtec to catch up after the Si start

details please

thanks
Partially due to better launches, partially due to more Tq, lower, the Si would pull on me in 1st, I would catch up by the time he was shifting into 2nd as I was still climbing in 1st (higher redline).
By the time I was back into VTEC in 2nd I was about a fender ahead... Afer that, I never drop out of VTEC and pull on him all the way to the finish where he would meet me about a .8 seconds later.

I ran a 15.5 @ 90, he ran a 16.4? 16.3?, dunno the trap speed.
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Old 11-24-2001, 11:31 AM   #17 (permalink)
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if you get an Si get the turbo...thas what i would do.
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Old 11-24-2001, 11:37 AM   #18 (permalink)
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Quote:
Originally posted by prelude2005
if you get an Si get the turbo...thas what i would do.
get "the" turbo
you make it sound like a factory option


I think turbos belong on turbo cars
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Old 11-26-2001, 11:00 AM   #19 (permalink)
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Quote:
Originally posted by dj_wawa


get "the" turbo
you make it sound like a factory option


I think turbos belong on turbo cars
why? you can spend $4K on N/A mods and then not be able to hold a candle to someone who dropped that 4 grand on some sort of F/I...... faster is faster..

p.s. vtec isnt all that. vtec spec cams in an Si it will run just as fast as a VTEC lude
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Old 11-26-2001, 12:44 PM   #20 (permalink)
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Can you even run "VTEC spec cams" in an Si?
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