need drag advice

hany · #1 10-19-2005, 07:19 AM

i have jdm d15b vtec with si tranny tomorrow i will drag with d16z6 and iam worry some becuse many many friends will be there . and i make myself mikle shomakher

and now iam worry what will i do with the d16z6 so what is the best maximume rbm for each gear . and what about the windows . i use p08 auto ecu. is there ar some thing can i change befor drag ?

CivicSpoon · #2 10-19-2005, 12:22 PM

If your car is an automatic; hold the brake and rev to somewhere around 2000rpms, and then let go of the brake. You shouldn't worry about the RPM for each gear, just put the pedal to the floor and the transmission will do the work for you. After that, just play with different RPMs to launch at until you find the best one.

snowman2005 · #3 10-19-2005, 03:19 PM

i think he has a manual with an auto ecu? idk. this site really needs that spell check

hany · #4 10-20-2005, 06:28 AM

the drag has become next week. i have manual tranny . i need advice about the best rbm for each gear and what about the windows and sunroof . anybody have advice ?

CivicSpoon · #5 10-20-2005, 12:05 PM

I'd guess somewhere between 6600 and 6800 RPMs. You can rev it higher, but everywhere I have read says that the engine reaches max hp at 6600rpms (so what would be the point of reving it too much higher). I'm not sure what you mean about the windows and sunroof. You should keep them closed if that's what you mean. The track I've been to made you close them, in case debris flies at the window so it doesn't hit you while you're driving. And by closing them you'll get less drag. If you don't mind removing your spare tire for the day, you should do it. Removing the spare will free up a little bit of weight (won't really do much though).

GScivic7 · #6 10-20-2005, 01:50 PM

I don't know about a d15b, but with my friend's Z6 I seem to have the best launches at about 4000-4500 rpm feathering the clutch out.

Optimal shift point is where your car starts to stop making power, but will keep you in your powerband in the next gear.

snowman2005 · #7 10-20-2005, 02:42 PM

Quote:

Originally Posted by GScivic7

keep you in your powerband in the next gear.

very important statement right there

AudioGuy93DelSol · #8 10-21-2005, 04:21 PM

With the redline at 7200 and VTEC engagement at about 5000, I recomend shifting at the 7000 - 7200 mark. Doing so will put you right at the beginning of VTEC engagement in every gear so you'll stay in VTEC and in the optimal power band the whole time.

hany · #9 10-22-2005, 05:53 AM

ok all . i will put all that advices in my mind and i will tell you after draging. i have quetion : what about changing the ecu p30 wich design for the b16a just for that drag and then remove it . will i have more power ? and what about the turbenator any one try it ?

AudioGuy93DelSol · #10 10-23-2005, 12:10 AM

I'll make this simple... The turbonator is bullshit. For optimal perforance, you want the intake path should be as smooth as possible. Do you think that swirling air in the intke tube will still be swirling after the throttle body, manifold, and valves? Nope. Popular Mechanics tested the turbonator to put the myths to rest and on a Ford F-150 and it decreased peak horsepower by more than 10% and made no change in gas milage. (If anyone wants to see the article or testing procedures, PM me)

hany · #11 10-23-2005, 06:41 AM

now i have two opinion first say to shift next gear at 4000 to 5000 to be keep in the power band anod second say t6o shift at 7200 to be in the third stage of my vtec . so any one can help me what shall i do !!

Kuntry_Boi06 · #12 10-24-2005, 01:22 PM

shift at 7200...

GScivic7 · #13 10-25-2005, 12:27 PM

Quote:

Originally Posted by hany

now i have two opinion first say to shift next gear at 4000 to 5000 to be keep in the power band anod second say t6o shift at 7200 to be in the third stage of my vtec . so any one can help me what shall i do !!

shifting at 4000 to 5000 will not keep you in your power band. Your power band is probably somewhere between 5500 to about 7000 rpm. At 5k rpm you're not even in your powerband yet.

hany · #14 11-06-2005, 04:41 AM

yesterday was my drag when the d16z6 saw me install me spare tires he
say no you have to put your 16 inch tyres i told him to istall his spare tyre say ok i will and then we start drag.
the result : he win but with only nearly 3 meter defrance. and all friends respect my d15b vtec.

POST REPLY TO THIS THREAD