hey guys well i finally got my 2.3l all said and done, and I was wondering if anyone could give me some input on a base tune. IE. what should max timing be under full boost. I have a buschur tune on it now, for tbe, intake.
current mods are:
2.3l all k1, ross internals
turbo xs tbe
turbo xs fmic
1000 cc injectors
walbro
intake
stock ic piping
stock turbo

 

Get it retunned don't risk it.

 

i just wanna get it driveable, what should low end timing be im thinking of upiing the timing at idle to 10

 

you need to adjust for those injectors first, it's going to be so pig rich.

 

You do not want to wash out the cyl with fuel on a brand new engine during break in..Just makes sure your scalings are in check for those inj like mellon said..Run conservative timing especially with the stroker..Mabye 10 degrees up top and 2-3 at peak torque until it is broken in and you can play with the tune,.

 

Unless you changed cams I'd keep the idle timing the same.

Fix your injector scaling, then just put some low timing in place to stay safe, like others said.

You may need to fix the false knock if you get it as well.

 

put your stock injectors back in for the break in if you have them, much less of a headache

 

i scaled the injectors first.

1000cc are 54% bigger than stock so stock scalings X 1.54

 

here is what the is on the car now.

 

oh yeah the car has gsc 280 cams

 

So you had the 1000's installed/running/tested before the new motor went in? If so, fire it up. If not, then seriously, put the stock injectors back in and put your old tune on. It should idle just fine with the same low-end numbers, just don't get on it. Otherwise, your x1.54 calculation does not work AT ALL in the real world. Read the how-to on how to scale injectors properly and see if you can find someone with the same size and brand injectors as you have that has posted their values, then use those as a starting point.

 

^^^ I agree with that.

If you haven't had the car running on the injectors with that scaling I'd be careful. Try and find some numbers from someone who has already scaled similar injectors. There's a whole thread on injector scaling.

I'd back that timing off to be safe, you can always add it back in. And those A/F values look lean as hell, again I would set those really rich for your first pulls and see where you are and then lean it out from there.

It's always best/safest to make your first pulls with low timing and rich AF's then you know where you stand and can lean things out etc.

 

you better rescale your load axis as well, 260 load comes fast on a stroker

 

So far it has worked pretty good cruising is at 14.7, idle is lean 15's -to 16.9 a/fs car has seen up to 12 psi now, and its in the 12s for a/fs.

 

those af numbers are from my dyno that i did at the start of the year and the car held 11.4 a/fs under 17 psi until redline