i finished up my d15b7 turbo setup over my xmas break, i freakin love it, pulls nice, i know its nothing crazy but a great learning project and made my car more fun on the street.

One kinda technical question tho, im runnin uberdata and im running a nice conservative basemap for now, i know i know i need a wideband tune but i jsut cant afford one, im only boosting 5-6 psi, (my autometer reads 8 but it also read 1.5 when its off, p.o.s.) and im running quite rich, w/ some smoke at idle and start up, and an occational bog in first gear, my question is it safe to pull a little fuel? and if i dont then will the black deposit from runnin rich that collects in the exhast get on my turbine wheels and end up damaging them? and info would be great and i heart boost!!

 

get a wideband on it.. that'll tell ya if its safe to pull some fuel.

 

save up some money and get a wideband. I know its expensive, but its well worth it. Have you had anybody check out your basemap yet?

 

yea thats definatly next on my list but it may be a lil while before i can get one, for now tho, like i asked will the deposits from it running rich gather on my turbo's fins and cause any damage? and also i have a cel for my map sensor that i cant seem to get rid off, any ideas on that either?

 

no it should be ok. But you can pull some fuel down low in the map. what version are you using? Please tell me 1.66

 

yea its 1.66

 

how much should i pull out? 5% 10% more? it does smoke some at idle

 

what kinda fuel pressure are you running?

 

stock, only fuel modification is dsm 450cc injectors

 

i forget what I pulled out on my car. I did pull some out because it was noticible rich at idle, and I did this without a wideband.

 

yea ill just pull it out little by little and get a nicer idle

 

what about my map sensor code, cant seem to get rid of that, and i have the map sensor settings in uberdata set to stock. Also my car backfires everynow and then, more so when im kinda cursin in the lower rpm's, what exactly causes a backfire and what can i do to fix this as well?

 

bump

 

What code are you throwing.

 

code 3

 

you may have chipped you ecu not quite right if you are getting a map code. happened to me before.

 

sweet man!!
once you get the bugs worked up crank it up!
what injectors are you running?
I say crank it up to 8 or 9,

I mean seriously, the d15b7 block shouldn't be any weaker than any other d block.. its just that the head doesn't flow like a z6 head does, which is the big reason it's so much weaker imo.

So now that you're boosted.. prettymuch I think you could put down 180whp RELIABLY with that motor.

I for one would LLOOOVE to see it too!
post some pics!

 

I thought the b7 head flowed better than most d-series head?? and the weakness in in the rods, really thin, in time i probobally will turn it up to about 7-8 but i need a better tune first

 

any other ideas on the code 3 rather than a bad chip install cuz ive been over that a few times now an am pretty sure its good