Si versus VTi ?

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13-10-2003, 02:31 PM
VTEChnique

I have VTi and drove Si also..

IMO.. the Si has better LOW torque but dies in the ass after 5,500 RPM

where the VTi power doesnt START untill 4,000 RPM but pulls all the way to 7,500 RPM.

in all my races with Si's, they've got me untill VTEC but then I pull on them bad.. and usually win by a length.. so they are very close but the VTEC top-end will get the better of the DOHC.

in terms of weight - the Si is a tiny bit lighter (both HB and 4-Dr) as they dont have the sunroof, however the ZC engine i'd say is heavier than the SOHC VTEC D16Y.

if you plan to do a swap down the track, the VTi would be better in terms of ECU / wiring problems.. but BOTH cars have the rear disc brakes.

besides that, you cant beat the VTEC 'BARK' !!
13-10-2003, 03:26 PM
Civic Type R

Quote:

Originally Posted by VTEChnique

you cant beat the VTEC 'BARK' !!

hehe "Is that a Type R motor you running under there sir?"

that was funny at Barbargallo Raceway LOL
13-10-2003, 03:57 PM
Bumble B

Quote:

Originally Posted by Weq

The sunroof is pure sex. Perfect in every honda way.

Cheers to that! :)

I think the VTi is fine for a SOHC motor!
13-10-2003, 04:11 PM
wynode

Quote:

IMO.. the Si has better LOW torque but dies in the ass after 5,500 RPM

It does? If I had my dyno plot with me i'd post it, but it actually keeps making power all the way till 6,800rpm and then holds that power untill the fuel cutout (same as the vti).

Both cars make the same amount of power stock. Just because it is VTEC it doesn't mean it makes more power after the VTEC engagement. BTW: the vti is SOHC VTEC with activation only on the intake side. Its not meant to be a performance monster.

As for weight of the engines, they are both all alloy including the head and the block. The si may be a 'bit' heavier because it has one extra camshaft, but that's trivial really. It's the overall weight of the cars that matter.

Quote:

if you plan to do a swap down the track, the VTi would be better in terms of ECU / wiring problems.. but BOTH cars have the rear disc brakes.

If you are doing swap, you would need new wiring harnesses, new engine and all the other goodies, so why is the vti any better?

-W

PS: AUDM Civic Si carries the D16A8. The ZC was only found in the Rovers here in Aus (just clearing it up thats all) :)
13-10-2003, 04:26 PM
bennjamin

Id just like to add something else if u will let me...

*jumps onto soapbox*

Vti's are ok.

But thats why the yanks turbo these...coz theres' no way in hell of gettin any more power outta a SOHC engine LOL J/K !!!

*falls off soap box , then runs away from Bumble Bee ! *

Vti's are ok - but i love my Si. *sniff*
13-10-2003, 07:57 PM
EG5

IMO.. the Si has better LOW torque but dies in the ass after 5,500 RPM

* I can rev my EG civic SI till 8000 rpm *
i bet no one belive me ;) but thats the fact.
13-10-2003, 08:15 PM
Weq

Quote:

Originally Posted by bennjamin

Id just like to add something else if u will let me...

*jumps onto soapbox*

Vti's are ok.

But thats why the yanks turbo these...coz theres' no way in hell of gettin any more power outta a SOHC engine LOL J/K !!!

*falls off soap box , then runs away from Bumble Bee ! *

Vti's are ok - but i love my Si. *sniff*

I totally agree. In terms of performance, honda has extracted about 90% of what a N/A d16y1 will produce in stock form.. Turbo is the only worthwhile mod i would consider for this engine.
13-10-2003, 11:51 PM
bennjamin

Quote:

Originally Posted by EG5

IMO.. the Si has better LOW torque but dies in the ass after 5,500 RPM

* I can rev my EG civic SI till 8000 rpm *
i bet no one belive me ;) but thats the fact.

I believe u Yonas....only becoz i KNOW ....pfft.....eat me in end of third will u ? BAH !!!

LOL :P

Anyway ! Si is better standalone car !
Get a VTi if u want " vee - teech " . and thats all.
14-10-2003, 12:05 AM
Setanta

Quote:

Originally Posted by EG5

IMO.. the Si has better LOW torque but dies in the ass after 5,500 RPM

* I can rev my EG civic SI till 8000 rpm *
i bet no one belive me ;) but thats the fact.

I'd believe you, simple because I got owned on another forum by a guy claiming that his Euro Civic (ZC powered) would do 200km/h+ in FOURTH gear. He posted footage of it doing it @ 8000RPM+ with the rev limiter removed and a re-chipped ECU. Similar spec DOHC to the Si so yeah, you have a believer here.
14-10-2003, 02:21 PM
VTEChnique

hahh you east-coast Si guys are the same as west-coast Si guys thinking cause they got DOHC they got the best engine in the world.

on paper they have the same power -VTi actually has more torque..

you can rev it to 8,000RPM ? well done !! I can rev mine to 8,200RPM.

FROM MY EXPERIENCE I have beaten every ZC engine I have raced except for ONE supercharged version. They pull on me untill I hit VTEC then I say bye bye... so you can say what you want.. if you can read you will soee that I said FROM MY EXPERIENCE.

yes the D16Y8 only has VTEC on the intake cam, that dont mean it's not a performer. the Malaysian D15Y SOHC VTEC is their top of the line performance engine.

the ZX is nothing special - it's just DOHC head on D-series block pffttt.

I'm not saying the D16Y is the best honda engine - i'll be the first to tell you that the B16A is better.. but not that much better.

FROM MY EXPERIENCE ALSO - I have beaten every LS integra I've raced also.. B18B... explain that ZC morons !!

FLAME AWAY BOYS AND GIRLS !!
14-10-2003, 03:24 PM
Bumble B

Quote:

Originally Posted by bennjamin

Id just like to add something else if u will let me...

*jumps onto soapbox*

Vti's are ok.

But thats why the yanks turbo these...coz theres' no way in hell of gettin any more power outta a SOHC engine LOL J/K !!!

*falls off soap box , then runs away from Bumble Bee ! *

Vti's are ok - but i love my Si. *sniff*

Would never sting a fellow Civic owner :P

Weq: Aren't most Honda engines highly tuned in stock form? Even the Si engine?
14-10-2003, 06:05 PM
bennjamin

Quote:

Originally Posted by VTEChnique

hahh you east-coast Si guys are the same as west-coast Si guys thinking cause they got DOHC they got the best engine in the world.

on paper they have the same power -VTi actually has more torque..

you can rev it to 8,000RPM ? well done !! I can rev mine to 8,200RPM.

FROM MY EXPERIENCE I have beaten every ZC engine I have raced except for ONE supercharged version. They pull on me untill I hit VTEC then I say bye bye... so you can say what you want.. if you can read you will soee that I said FROM MY EXPERIENCE.

yes the D16Y8 only has VTEC on the intake cam, that dont mean it's not a performer. the Malaysian D15Y SOHC VTEC is their top of the line performance engine.

the ZX is nothing special - it's just DOHC head on D-series block pffttt.

I'm not saying the D16Y is the best honda engine - i'll be the first to tell you that the B16A is better.. but not that much better.

FROM MY EXPERIENCE ALSO - I have beaten every LS integra I've raced also.. B18B... explain that ZC morons !!

FLAME AWAY BOYS AND GIRLS !!

Chill chill chill...then again , FROM MY EXPERIENCE i have beaten every single VTi that i have taken on...and a vtir or two too...

But that DOESNT mean my car is better or more powerful. OR does it mean that i can automatically beat every single VTI or VTiR or whatever in the world. It comes down to driver.

I once ATE a 32 gtr around a corner.......

only becoz he was turning into maccas !!!

"WEST SIDE, EAST SIDE....who gives a feck ! lets not start like Americans crap on about everyday !

HONDAS R COOL !

Dammit.

I just luv Eg's .

8)

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