Hondata

also, i had the injectors set at 750cc, they are actually 725's.

fixed the lightswitch throttle at low vac. minumum tps was @4%.

on this one i hit about 8 psi and ran it to about 7k, but the map log looks weird.

i'm going to take the car to a tuner so i dont waste anymore of your time, but i just thought you might be intrested in this and meaby be able to shed some light.

thanks!

did some more driving/tuning. this datalog is about 2min long. just easy acceleration. whats weird is at 1:30 and 1:45 i lightly let off the gas and the car just hits a wall. it's like a on off switch, i messed with the tip in fuel, but it seams to have more to do with the closing of the throttle.

Spunkster, that is correct. this was done at idle with no throttle input.

Fly_n, yes, i removed the resistor box. my o2 set up is a stock for narrow input, and a AEM unit for wideband input. i will put up a longer datalog this weekend. no, i do not know for sure the fuel press, i just put 43.5 as ...

any ideas?

got that datlog. at 20 seconds i switched to closed loop, at 40 seconds i switched back.

ok. thanks for the look. i will run the car again this weekend and record a data log, then post it. thanks again for your time.

oops, sorry.

i dont have a datalog of the problem, but like i said it runs good in closed loop (just idel, havent driven her yet), but if i switch to open loop for tuning, it goes way rich 10:1.

this is on a '98 gsr with a built 9:1 b18c1 gt3076. walbro 255 lp pump, bosch 750cc saturated injectors ...

well i got it running better now. idel is at 850rpm, vac is at -20, a/f is right at 15:1, EGT is at 600, and oil is at 20psi. also the throttle response is back to normal.

what i did was increase the low cam fuel table values and corrispondingly raised my injector size value back to 750.

i can ...

so, i made some changes to the car and now (big surprise) it's not running right.

this is on a built 9:1 b18c1, the ignition timing is right on, i am starting with base maps.

the changes were:

new turbo gt3000 - not a factor (still tuning idel)
s300 upgrade from s200
id750 upgrade from dsm 450's ...

i know your 10:1, but doesnt your timing seem a bit soft?

i keep getting a virus warning when i try to down load s-manager from your site. i've done this in the past with the same virus scanner and didnt have a problum. somthing may be infected.

still working on the tune in my off time ( navy keeps us busy ). last dyno was 243 whp @ 7 psi. going to install a performer x intake mani and a type-r cam next weekend and re-tune. might buy the s300 after deployment, wish i would of just bought it in the first place...like you said.

everything works now. road tested the car today. thanks for all the help. if you have any time, heres the map, maybe you could tell me what you think.