Anyone know the redline of a JDM D15b with stock internals?

 

I have a P28 ecu, stock, that has a rev limiter at 7500, but I've noticed power seems to drop after 7000ish... My friend had a reprogrammed B-series ECU with DC headers, and Skunk2 IM, stock internals, and he said he was making power up to 8000.

 

peak hp is at 6800, so stock redline of around 7200 or so sounds right

 

i got an old 93 civic dx in my garage drive it around now and then (oh its a coupe, d15b7) those things didnt coem with a rpm meter. the moter is usdm if im not mistaken. what should be the red line on that or better yet at what mph are the perfect shift points for each gear? i was planning of restoring the car in a couple of months + get a new cluster but for now i got no way to tell what rpms are other then jsut listening. just curious

 

d15b7 peaks out at 102hp at 5900 rpm. i dont know those motors well enought o say whether they drop like rock after that or if they plateau somewhat. somewhere not much past that would be my shift range, 6k, 6200 somewhere in there, and thats more than likely about where the redline is as well

 

icic so in second gear that should be around 40 mph? thats what ive been pushing it to in the past lol. im sure there are other factors involved in making that guestimate. thnx for your help

 

:D yea im riding on some random 15's god i love HT :D:D

is that the vee dub dood in ur avatar? woot :D

 

sorry for the post delete i realized i got the equation all backwards.

for 40mph in 2nd, you have 40=(rpmXtire diameter)/(336X1.762X4.058)

yes my avatar has gehrman engineiring in ze hause ja

 

Awsome info...


Another question, I got a p28 with 5 rom chips, jun, mugen, skunk2, spoon, and xs. Each has different engagement points for vtec. 4400, 4400, 5000, 5100, 5500, which would you guys use?


EDIT: The mugen suxorz, just tried it.... 4400/10000, horrible idle and power band... I think it might just be to rich on the fuel, dunno though.


Modified by Defile at 4:11 PM 4/16/2006