wondering if you guys can make some suggestions just put the apexi V-AFC on the car (after this run) what do you think I should do with the fuel ...and that bump at vtec good bad? , insufficient fuel, inccorect vtec engagement? Just like to hear some comments...

 

dunno, but out of curiosity what kinda setup is that?

 

b18c5 with crower cams, and a chipped p28

 

mark,

did you run with lamba meter????

check out my runs....
http://www3.sympatico.ca/mkawenka/dynob18c/

[Modified by eg6ajk, 2:09 PM 5/20/2002]


[Modified by eg6ajk, 2:10 PM 5/20/2002]

 

I should have, no I didn't
that link isn't working???


[Modified by T.O.STREETRACER, 1:39 PM 5/19/2002]

 

without a air/fuel readings its hard to say where you should add or remove fuel from.

you can try to se the VTEC engagement a little lower if that helps at all.

 

thats kinda a weird VTEC engagement, and your power seems to drop off a little more then I would expect with cams. what other mods do you have?


[Modified by JDM LUDE, 7:57 PM 5/19/2002]

 

lower vtec engagement is worse (*** dyno) I could feel the difference.
thats all my mods, by wierd what do you mean??

 

?

 

what crowers are those?

 

402's

 

^

 

Without A/F readings, tuning recommendations are virtually blind guesses.

 

Stop running it to 9100rpm. You are not making any power up there that high in the rpm range...

Looks like the fun is over by about 8600rpm or so. Reving any higher with whatever cams are currently in there is pointless. You are just increasing the likelihood of seriously damaging the motor...

Plot looks very nice, BTW. Nice smooth power ramp and flat as a board torque plot... You will likely get a few HP from tuning the V-AFCwith a wideband O2 sensor on the dyno. But it does not look like there are any major areas that need improvement based only on the smoothness of the curves. Again, a wideband O2 reading plot is needed...

Andrew

 

thanks for your helpfull suggestion

I am going to get some lude injectors and see how that helps cause I know 62 psi is too high and shows that i need them , You guys should have seen the dyno plots before I changed the fuel pump!!!!!

 

what did the dyno plot look like before the fuel pump? what brand fuel pump did you replae the stock one with?

 

a little secret maybe you guys have heard of ,a stock toyota twin turbo pump drops right in... when vtec kicked in before the hp and torque droped and then I lost more power up top....

 

how much more does the toyota supra fuel pump flow over stock? and are they cheaply avalible?

 

why inserting a new pump? isnt 40psi enough to work with?

 

the price I got was alot cheaper (about half) than the same size aftermarket ones that are out there, 255Lph

 

think you can hook me up with one?

where did you find one in TO?

 

give andy at #7 honda a call 905-851-2250
tell him you saw the ad on the web site, he'll know what your talking about,
ask him for a toyota supra Twin turbo fuel pump...