San Diego Evo's
Justin you must be making 375whp if your shifting at 7k rpm 's..
I ran 7.9 in 3rd bouncing off the rev limiter (7600) FOREVER at a trap speed of 83mph
If I shifted Into 4th I would have a higher MPH but a slower time
F shifting into 4th.. If you hook up good.. you'll never have to worry about that anyways.
I ran 7.9 in 3rd bouncing off the rev limiter (7600) FOREVER at a trap speed of 83mph
If I shifted Into 4th I would have a higher MPH but a slower time
F shifting into 4th.. If you hook up good.. you'll never have to worry about that anyways.
A by product of changing cam gear angles are different ignition timing and fueling needs....the MIVEC map also need to be adjusted accordingly since you have a IX....good luck on your quest for more POWA!
Last edited by alan678; Feb 26, 2008 at 01:47 PM.
Was this on the S2K? its running AEM EMS right? i'm not much of a Honda guy, but if you need a hand W the EMS or tuning it id be happy to help
btw, are you running Speed Density or M.A.F w the EMS? if speed density, are you using boost comp?
Andrea's Evo. Stock ECU.
Its all good. Retarding the timing by 2 degrees caused a loss of 10awhp, but the car is now running pig rich and once leaned out it should make more power then when we first started.
Drag racing 101
Shifting into fourth goes against "drag racing 101" rules.. bro it's the truth
Shifting at 7K is just hard to believe.. that's all
Shifting at 7K is just hard to believe.. that's all
Last edited by big block ix; Feb 26, 2008 at 03:37 PM.
From the Mr. Dragster himself:I am here to tell you that the stock turbo does NOT keep making power after 7k rpm. There is a steep dropoff after 7k. In your case, it's pretty flat from 6k-7k, which is good, but you should be right in that range in every gear (6k-7k) and should not be going over 7k except for maybe a few hundred rpm. All you have to do is look at dynographs of the thousands of other stock turbo'd Evos showing this same phenomenon. Plus, the part about being at full boost in every gear is WAYYYYYYYYY off. We hit full boost below 4000rpm, and then it tapers continually from there on. The higher you shift, the LESS boost you will see in every gear, because you're in RPMs that are out of the turbo's efficiency.
Just because you shift around 7k in other gears doesn't mean you have to shift to 4th. Again, this is just standard fare. In the 1/4, many people will shift at 7k on the 1-2/2-3/3-4 and then ride out 4th as far as they can. In your case, you could do the 1-2/2-3 at 7k and then ride out 3rd as far as you can. However, that's one of the problems with the 1/8th-mile. You WOULD shift to 4th before the 1/8th-mile on a 1/4-mile track, so trying to keep it in 3rd on the 1/8th just gives false readings. As one point of reference, on my 6spd, I would hit _5th_ before the 1000' mark, which is halfway between the 1/8th and 1/4.
Just because you shift around 7k in other gears doesn't mean you have to shift to 4th. Again, this is just standard fare. In the 1/4, many people will shift at 7k on the 1-2/2-3/3-4 and then ride out 4th as far as they can. In your case, you could do the 1-2/2-3 at 7k and then ride out 3rd as far as you can. However, that's one of the problems with the 1/8th-mile. You WOULD shift to 4th before the 1/8th-mile on a 1/4-mile track, so trying to keep it in 3rd on the 1/8th just gives false readings. As one point of reference, on my 6spd, I would hit _5th_ before the 1000' mark, which is halfway between the 1/8th and 1/4.