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SpeedRacer
07-24-2002, 09:56 AM
this asshole at work keeps trying to talk shit on my car because he is probly jealous. anyways he has a Z3 and i thik it has like 140 HP but it is real light anyways im not sure. He wants to race me now and i would love to smoke his ass but do you guys think i have a chance?

fishboy
07-24-2002, 10:01 AM
give it a shot. i drive like crap so i would probably lose. i don't know anything about z3s either. besides it would look worse if you backed down as opposed to racing him and losing. but yeah race him and kick his ass.

DJQuikFingaz
07-24-2002, 10:04 AM
[vin_diesel_voice] SMOKE EM!! [vin_diesel_voice]

SpacemanSpiff
07-24-2002, 10:05 AM
ummm, is it an old Z3 with the 4 cylinder or one with the I-6?

beretta627
07-24-2002, 10:06 AM
i hate to go by manufacturer's claims , but BMW said the 1.9 cyl will do 0-60's in just under 9.5 secs, putting it in good competition for EX Civics.... you shouldnt have a problem. I hate 0-6o's too, but I couldnt find a 1/4 time. It's dog slow though :)

ApexinSi
07-24-2002, 10:10 AM
EEEEWWW..Z3's are crap...I don't know why people think they are fast cause they arn't. Not unless it's a 3.0i or something newer....if it has an M badge on the back of it, your ass is grass.....otherwise I'd race this fooker....I'd be pretty confident racing an older model Z3.

SpeedRacer
07-24-2002, 10:11 AM
yea it is the 4 cylinder

SpeedRacer
07-24-2002, 10:17 AM
ok i will race him but i would hate to lose

MagusDC5
07-24-2002, 10:20 AM
launch in VTEC, hope you replaced your crappy stock tires to reduce spin. Also try and lighten your car up as much as possible..it isnt the lightest hatch on the block.

Brenetics
07-24-2002, 10:22 AM
just race him man, if you lose who cares it's all in good fun.:)

HondaMan
07-24-2002, 10:50 AM
Smoke his ass! :D

It should be no problem, if it's an older Z3 with a 4 banger.

SpeedRacer
07-24-2002, 10:51 AM
yea i have 17in racing hearts on my car that weigh almost half of what the stock wheels weighed and im running nitto 450 tires 214/45/zrated

smapzy
07-24-2002, 11:08 AM
You should do fine. I drove the z3 1.8, 2.5, 2.8. The 1.8 is a POS. can't go fast, can't corner. the little Si can handle it. But IF you ever lose.... just beat the crap out of him...hahah j/k ;)

Brenetics
07-24-2002, 11:10 AM
Originally posted by MagusDC5
launch in VTEC, hope you replaced your crappy stock tires to reduce spin. Also try and lighten your car up as much as possible..it isnt the lightest hatch on the block.

where exactly is "vtec" in our cars?

SpeedRacer
07-24-2002, 11:12 AM
i will take out my spare tire will that help

SpeedRacer
07-24-2002, 11:13 AM
yea whare is vtec in are cars?

Pradamuimui
07-24-2002, 12:50 PM
KICK HIS ASS!!!!!

02SilverSiHB
07-24-2002, 12:57 PM
Originally posted by SpeedRacer
yea whare is vtec in are cars?
I think I remember someone here saying it kicks in when ever the ecu feels necessary, what's his name...permamdai or some shit like that

02SilverSiHB
07-24-2002, 12:58 PM
Originally posted by 02SilverSiHB

I think I remember someone here saying it kicks in when ever the ecu feels necessary, what's his name...permamdai or some shit like that
hello! I'm stupid, he posted right above me: Pradamuimui..didn't you once say VTEC in our cars hits at anytime that the ecu feels necessary?

beretta627
07-24-2002, 01:54 PM
i-VTEC = VTEC + VTC


VTEC = Variable Timing and Lift Control
VTC = Variable Overlap Timing Control

VTC allows for dynamic intake valve timing & overlap control.


on the K20A ... VTEC only engages on the Intake Cam.

VTC allows continuously variable valve timing to fit the load of the engine.

the K20A has dual intake runners on the manifold much like the GS-R B18C. (Low RPM the runners are longer) (High RPM the runners are shorter)

The "VTEC" cam profile on the intake cam "kicks in" depending on engine load as well as engine RPM.



Just FYI.... VTC is programmed for fuel economy in the K20a, and "chipping" it to a more performance oriented program is going to be very challenging considering the fact that there are so many different profiles programmed into it. VTC in the stock form is detrimental to the overall performance of the k20a. There is a setting on the ECU that will induce the EGR effect (sucking some of the exhaust gases back into the combustion chamber to help reduce emissions by ensuring a clean burn.)

Disabling VTC and setting the valve overlaps for maximum top-end performance will probably bring forth a wealth of hidden power on the k20a.

ok, I'm done rambling. Hope this helps. :)

MagusDC5
07-24-2002, 02:23 PM
engagement on all the older 8k models was 5800rpm... on the new 7G model it is 4800rpm, however that is SOHC VTEC-E...if you launch around 4-5krpm and feather the clutch out you should be fine.

MadMax
07-24-2002, 02:40 PM
beretta627 -
Dude... you are mixing up information on several different engines.

RSX and Si have K20A3
RSX-S has K20A2

Only the base RSX (w/ k20a3) has the dual-stage intake runners.

vtec on the k20a2 is similar to the S2k or gsr, only with the addition of VTC.

vtec on the k20a3 different and only affects 1 valve per cylinder and happens at 2200 rpm. You should never feel it "kick-in" with this engine.
My source is the RSX service manual and several weeks of hanging out on clubrsx where this was discussed to DEATH.
Now I suppose the K20A3 in the Si could be completely different than the one in the RSX, but i doubt it.

MagusDC5
07-24-2002, 02:42 PM
MadMax is correct. :)

beretta627
07-24-2002, 02:42 PM
yea ... im getting it straightened out :) thanx

NetDragon
07-24-2002, 03:06 PM
Yeah every little bit helps. Pull the spair and the jack and DON'T get a flat that day, run him with as little gas in the tank as you can, less than 1/4 tank. Clean out your car too. Every little bit helps. With VTEC it is all about the launch, just be careful, you do not want to spin the tires, but he prolly does not know any better and he will screw up his launch, spin his tires because he likes the sound, you will smoke him! Also remember not to just SLAM it into 2nd gear, a nice quick smooth motion is more efficient. Again, I am no pro here, just what I have observed while driving my Si.

DownTheHatch
07-24-2002, 03:34 PM
4 cylinder Z3's are slowwwww, smoke him.

smapzy
07-24-2002, 04:36 PM
Shit, have you guy seen this!? :eek:

http://store.hybridgarage.com/productdetail.php?id=EVO7FRCLIP

This is amazing..... I think you need like 10 tower bar to stop the chassis flex.....;)

DownTheHatch
07-24-2002, 06:10 PM
I'll take the brembo brake calipers.:cool:

iR-VTEC2
07-24-2002, 06:34 PM
4 banger Z3's do 16 flats according to car-stats.com which is not the most reliable source but a source nonetheless.

bmwworld says 16.0 http://www.bmwworld.com/reviews/z3_long_term.htm

Car Hp Tq Cwt (lbs)
Z3 138 133 2701
Si 160 132 2744


2701/138 = 19.572464
2744/160 = 17.150000

The math alone justifies a win. but not by much. If he gets the jump on you, you'll lose.

Practice!

02SilverSiHB
07-24-2002, 08:49 PM
Originally posted by iR-VTEC2
4 banger Z3's do 16 flats according to car-stats.com which is not the most reliable source but a source nonetheless.

bmwworld says 16.0 http://www.bmwworld.com/reviews/z3_long_term.htm

Car Hp Tq Cwt (lbs)
Z3 138 133 2701
Si 160 132 2744


2701/138 = 19.572464
2744/160 = 17.150000

The math alone justifies a win. but not by much. If he gets the jump on you, you'll lose.

Practice!
:D car-stats also says we hit a 16.2 :(

iR-VTEC2
07-25-2002, 01:37 AM
hehe hence the "which is not the most reliable source" bit.

beretta627
07-25-2002, 02:47 AM
the new Si is capable of 16.2 ... and also about a half second quicker out of the box :) So it's technically not wrong... it's just not the best time possible.:D

SiCivic2k2
07-25-2002, 04:12 AM
Originally posted by MagusDC5
engagement on all the older 8k models was 5800rpm... on the new 7G model it is 4800rpm, however that is SOHC VTEC-E...if you launch around 4-5krpm and feather the clutch out you should be fine.

You can't launch that high in the EP's You will get hella wheel spin. Try 2,500-3,000 You'll get just a little chirp and then take off. Then shift at 6,500rpm going into 2nd and 3rd etc. etc. This is where our max horse power is. Going past 6,500 rpm while racing will just slow your car down. Hope this helps. Good luck with the race.