Okay, can a Civic SI beat a 2.5L with headers and also..

[cheezball1257]

From a redlight start i raced a CIVIC SI and beat it by 1.5 car lengths and my 2.5S WAS stock at that point.

[Hussain]

what kills the race, is the cvt for some reason when you stomp on gas its takes a second or two for the torque converter to say ok ill put the the power to the ground now. thats what kills the race i mean with intake and exhaust i done 40 rolls against stock si's and they get the jump me but it stays like that till a 100 (this was done on a closed airstrip)

thats why you build up the revs before you go (step on brake and gas at the same time) and then when your ready to go, just let go of the brakes and it takes off instantly.

[chiapetchua01]

thats why you build up the revs before you go (step on brake and gas at the same time) and then when your ready to go, just let go of the brakes and it takes off instantly.

you can do this on a cvt? isn't it bad lol

[Hussain]

thats how you launch all automatics. ive done it like 100 times and have had no issues. tim from speed force racing once said it wasnt good but then when i asked why, he never responded. i doubt anything would happen. but say worst case scenerio it does mess up your transmission... Nissan extended the warranty on the CVT transmission to 10 years/120,000 miles. so if your transmission does mess up, they will replace it. but like ive said, i've done it over 100 times without ever having issues and other members have also done it several times with no issues.

[chiapetchua01]

gotcha dudewhat do u do again i want to try haha

[PHENOMenalVinyl]

the new civic Si with bolts ons and a tune can beat a 3.5 A/C ... I doubt headers would be enough for you to take one in a 1/4 mile... I don't think headers, intake, and exhaust would be enough actually

exactly those phuckers are fast even a stock civic si sedan s*** on my i knew he would too i dont get how u can say i kept up with him thats like saying u kept up with a vette in the 3.5 u lost and unless u were 1-2 car lengths away then u just straight lost

[Hussain]

when you're at a complete stop, make sure you step on the brake all the way, then give it gas and the RPMs should go a little past 2k. then just let go of the brake while keeping your foot on the gas

[el_blacky06]

ive raced a 2007 civic si 4 door and with the mods i have i beat em 0 -90 (quarter mile) by 5 cars but once it hit 90 mph he caught up fast and beat me by 5 cars at 105mph. i got all bolt ons cat deletecivic si intake, 3 inch exhaust, kpro computer upgrade

[xdarkaznsoul]

ive raced a 2007 civic si 4 door and with the mods i have i beat em 0 -90 (quarter mile) by 5 cars but once it hit 90 mph he caught up fast and beat me by 5 cars at 105mph. i got all bolt ons cat deletecivic si intake, 3 inch exhaust, kpro computer upgrade

That's because he had kpro lol. Kpro makes the car quick as hell and im surprised you were up by 5 cars.

Anyways i launched(build up revs and hitting the brake) when i did my 0-60 time on youtube stock in 5.9 seconds and i did it the other day when i was racing a s2000 and it jumped to 45 and when straight over 60. I didn't get to record it but i bet it would be a lot quicker than 5.9.

But if you race on a roll than put it in tiptronic and floor it til you get to 6k than switch over to D. Trust me you would be a lot fast because it goes to redline right away and it doesn't have to shift when you put it in D.

But the answer to your question is NO, you cannot beat a civic si with just headers.

[ESP]

ive raced a 2007 civic si 4 door and with the mods i have i beat em 0 -90 (quarter mile) by 5 cars but once it hit 90 mph he caught up fast and beat me by 5 cars at 105mph. i got all bolt ons cat deletecivic si intake, 3 inch exhaust, kpro computer upgrade

...so he gained a total distance of 10 cars in the time it took you to accelerate by another 15mph?Methinks one of you wasn't actually racing at first...

[Hussain]

hmmm ive done that several times but if i take it up to 6k RPM before putting it into D, the rpms will drop as if i shifted before putting it into D. at like 3k RPM it will just continue going but the sweet spot for my car was like 4500 or 5500 RPM. somewhere around there and it'll shoot straight to redline when i put it into D.

[Hussain]

Anyways i launched(build up revs and hitting the brake) when i did my 0-60 time on youtube stock in 5.9 seconds and i did it the other day when i was racing a s2000 and it jumped to 45 and when straight over 60. I didn't get to record it but i bet it would be a lot quicker than 5.9..

using the method i used to lauch my car, i got a 2.169 60ft. so for ppl who dont really know much about drag racing, your 60ft is pretty much just your launch. on dragtimes.com i got the fastest 60ft for ANY altima on street tires and even better then a couple altimas with drag radials. so the main reason ive done so good at the track is because of my launch and thats the way i would launch...

...so he gained a total distance of 10 cars in the time it took you to accelerate by another 15mph?Methinks one of you wasn't actually racing at first...

it just took him a while to hit Vtech

but seriously, it probably did take him a while to hit Vtech and on top of that, our cars dont allow full throttle past 90 MPH. so basically, the altima got a little slower and the other car got a little faster.

[el_blacky06]

actually hes my friend that owns the civic si and trust me he was really trying to beam me the first 3 gears since he thought he could do better loland its tuned for top speed not for quarter mile.

[93coupe]

I didn't read this whole thread because I think the original question is ridiculous. Why wouldn't you just go race and find out?

An easy decision for me would be to place all of my money on the Civic though.

[xdarkaznsoul]

hmmm ive done that several times but if i take it up to 6k RPM before putting it into D, the rpms will drop as if i shifted before putting it into D. at like 3k RPM it will just continue going but the sweet spot for my car was like 4500 or 5500 RPM. somewhere around there and it'll shoot straight to redline when i put it into D.

When i swtich to D at 6k it doesnt shift at all, it stays there. I only do that when i am racing on a roll. The other day i raced an rsx type s with a bunch of bolt ons and the hondata reflash and i had a passenger in a car (extra 200 lbs) and it was dead even and after 90ish he started pulling 1/3 of a car on me and it stayed still but i slammed on my brakes cause there were cops. But it seems as though our CVT trannies arent really good at top end at all.

BTW sorry for the thread jack =]

[Hussain]

ya thats what i do from a roll too but it doesnt work for me if i do it that high in RPMs.... and for those who want to try, make sure your foot is all the way on the gas when you put it back in D.

[Bretahn J.]

I raced a Civic SI when i had my 2.5S and beat it twice. I dont know if having the MT helped or he just could not shift right. My 2.5S was bone stock and the SI had a intake. The first time it was while already driving, the next time it was at the light. That was just my experience.

[adidas2go]

using the method i used to lauch my car, i got a 2.169 60ft. so for ppl who dont really know much about drag racing, your 60ft is pretty much just your launch. on dragtimes.com i got the fastest 60ft for ANY altima on street tires and even better then a couple altimas with drag radials. so the main reason ive done so good at the track is because of my launch and thats the way i would launch...

Its called power launching. Its a basic in racing from a dig. Its terrible for the CVT transmission because the torque converter is weak as hell in this car. Especially doing this type of launch in the 3.5. It will hurt the transmission big time over a period. Shorten its life span immensely I did this with the turbo and felt the transmission give A LOT. I never did it again.

[Hussain]

awww i see. thank you for finally clarifying why we shouldnt do it. is there anyway to replace the torque converter for a stronger one that can also launch at a higher RPM?

[adidas2go]

I have no idea in the CVT. Since Tim over at SFR is rebuilding Ricky's CVT, he would have the best idea.

[xdarkaznsoul]

I have no idea in the CVT. Since Tim over at SFR is rebuilding Ricky's CVT, he would have the best idea.

I heard that launching on a cvt is bad but i'm just going to take it back to warranty to get it replaced cause it makes squeaky noises sometimes anyways. I took it to Nissan and they said it was normal so i plan on taking it back again.

But does anyone know why the cvt is so bad at top end? Will adding a y pipe or anything help improve top end or is it just the transmission holding you back.

Most my races are going to top end so thats where i want to focus the most and its too late to get a 6spd now. I beat a 6spd altima 3.5 before by a car length til 80 but i bet he would of pulled.

[Hussain]

nope. i even ran my car with no muffler and i ran it with a cut-out open before the cat and it always get a LITTLE slower at 90 and at 120 it doesnt really want to do more... you need a LOOOOOOOONG stretch of road to do anything past 120. i THINK it has something to do with the tune but i dont know... supposedly stillen is working on a tune for the car.

[xfactor0707]

Let's not Forget about VTECH yo