planeman01

I got the prelude tuned at intec racing in kent. i felt happy when i left but i want your opinions on it as well

here's the setup:
straight t3 .42/.48
log mani
2.5 exh all the way back
390cc dsm injectors
walbro 255
tial 35mm .5 bar spring

i'm only seeing about 6psi wich is fine...i feel like its too rich down low and leans too much towards the top...leans to 12.6

TIA

0mtber

iTrader: (2)

That turbo is kinda small....

Target 11.8:1 a/f ratio :-)

What was used to tune it ?

MikeMAN

definately too lean up top....target a 11.8:1 or so a/f...and like mtber said, what did u use tune?

thanks,
mike

Zer0DazE

why would you run it that fat on 6 psi?

it looks fine to me up top, but fat on the bottom end.

nonvtecD

Yeah, I think 12.5 would be safe at that boost level and yes definitely too rich on the bottom.

Civicman86

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, I think 12.5 would be safe at that boost level and yes definitely too rich on the bottom. </TD></TR></TABLE>

I agree. If it was me i would go back to like a 12:1 up top just incase. You wont loose much hp from the change but I know it would make me feel better. Definatly make the downlow a little leaner.

planeman01

i forgot to add that its a stock bottom end and its tuned on croam (sp?)

thanks for the imput guys, i kinda had the same thoughts about the tune....anyone else?

Rick

planeman01

bump

quicksilvia

if the afrs were from a tialpipe sniffer your car could be running up to 1.0 richer then the graph shows. im pretty sure that the tailpipe sniffer reads leaner then an o2 in your downpipe, but somebody please correct me if i am wrong.

livinlow

I get my tuning done there. The sniffer they use for the dyno actually reads a little lean to the actual numbers. I wouldn't worry about it. Definately fat on the low end compared to mine.

tfnaaf

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quicksilvia &raquo;</TD></TR><TR><TD CLASS="quote">if the afrs were from a tialpipe sniffer your car could be running up to 1.0 richer then the graph shows. im pretty sure that the tailpipe sniffer reads leaner then an o2 in your downpipe, but somebody please correct me if i am wrong. </TD></TR></TABLE>
Same here, my dyno AFR was about 1.0 off from my wideband

planeman01

so the tailpipe sniffer that they used on my tune at intec could potentially be up to one point off ? that's wack.

can anyone else confirm this?

Rick

hulkhb

Shoulda just called leed. you would have saved alot of money and got alot more power/tune. PM if you need contact info.

Honda007

Your turbo is too small for the amount of displacment your engine has. Get a bigger turbo.

planeman01

who's leed? contact info?

Rick