Hello,

I'm almost done with my build and I want to make sure all my bases are covered before I turn the key and fire it up.

Here's what I got:

AEM CAI, DC 4:1, testpipe, Blox IM, b16 head w/ ITR valvetrain, ctr cams, ctr pistons, p28, conversion harness, uberdata, PLX m-250 wideband, b&m fpr, rc310's.

can someone help me so that when I turn the key for the first time i dont blow it up?

i can put it all back together, but i'm not too sure how to set the ecu safely with this configuration, considering it won't be tuned or timed. any help is GREATLY appreciated. I've owned this Si since day 1 with 0 miles and I'm finally building it. She is like my 3rd child. I hope you guys can help me finalize my build properly.

Thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nissanjon &raquo;</TD></TR><TR><TD CLASS="quote">Hello,

I'm almost done with my build and I want to make sure all my bases are covered before I turn the key and fire it up.

Here's what I got:

AEM CAI, DC 4:1, testpipe, Blox IM, b16 head w/ ITR valvetrain, ctr cams, ctr pistons, p28, conversion harness, uberdata, PLX m-250 wideband, b&m fpr, rc310's.

Did you list everything you got? Do you have cam gears? I am just wondering because this setup should not cause you to blow it up.

can someone help me so that when I turn the key for the first time i dont blow it up?

Assuming you have everything back together correctly( timing belt, timing, fuel pressure, etc.)

i can put it all back together, but i'm not too sure how to set the ecu safely with this configuration, considering it won't be tuned or timed. any help is GREATLY appreciated. ( is there not a base map you can use? I know they have base map and for the time being set Fp to I did 60 psi and timed it 10 degrees.) I've owned this Si since day 1 with 0 miles and I'm finally building it. She is like my 3rd child. I hope you guys can help me finalize my build properly.

Thanks!

</TD></TR></TABLE>

 

yes, i do have adjustable cam gears, and let's assume installation is done correctly. one question is, how can I ensure what the timing will be before I turn the key? I mean I can set the crank at TDC and line up the cams, but what about the ignition timing, how do you set that without firing it up and using a timing light?

Also - when you say basemap, i know uberdata has a b16 and gsr basemap - are either of those safe to use with these pistons/cams? Also how do i set the fuel pressure properly (again, before turning the key)?

thanks

(and sorry for sounding like such a noob but we all gotta start somewhere)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nissanjon &raquo;</TD></TR><TR><TD CLASS="quote">yes, i do have adjustable cam gears, and let's assume installation is done correctly. one question is, how can I ensure what the timing will be before I turn the key? I mean I can set the crank at TDC and line up the cams, but what about the ignition timing, how do you set that without firing it up and using a timing light?All ignition timing by the distributor. Push it for for advancement and pull towrds you to retard. For right now just leave it centered that should give you assuming you have not milled the head a great deal like 15 degrees.

Also - when you say basemap, i know uberdata has a b16 and gsr basemap - are either of those safe to use with these pistons/cams? Also how do i set the fuel pressure properly (again, before turning the key)? Make sure all yor fluids are checked and that the fuel line is connected because you will now turn the key not to crank but in the on position. Fuel pressure should come on and it should tell you with your FP gauge how much Fuel pressure you got. Since this is a b16 engine with ctr pistons, which compression is about 11.7 set FP to like 50 to be safe(again assuming you have not milled your head). set cam gears at 0 for now till you can get out and tuned.

thanks

(and sorry for sounding like such a noob but we all gotta start somewhere) </TD></TR></TABLE>

Again I can only coach you so much as the car is not in front of me

 

the head has been milled like a **** and so I got a .062" gasket. knowing the head is milled, would I want to advance or retard the timing and raise or lower the fuel settings, compared to what was just stated? and why? (so i can better understand)

Would a .080" or .093" gasket be safer?

 

bump - this forum moves quick

 

How much was the head milled? oem 3 layer is about 40 thou thick. If the head is going to be down further then stock then it will retard the cam timing. Set the distributor in the middle. Set the cam gears at zero depending..... Only thing is that ecu should have a chip for injectors like that it will run really rich and fill the cylinders and exhaust ports with soot.

 

interesting - i have heard that the stock 240cc injectors would have to be run to the max and would then fail...so i thought 310's would be the next logical step. Doesn't uberdata allow you to determine how much fuel the injectors spray?

 

My mistake, I read too fast. You'll be fine with those injectors. Do you know offhand how much was taken off teh head?

 

the guy at the machine shop said it was milled .030" under minimum spec - so thats why we got the .062" copper gasket...we're gonna clay the pistons next week and see what's up...

 

I don't have personal experience with this, but I was told the copper headgaskets are better for short term motors because they seep oil and coolant. Something to think about.

 

i went ahead and got a custom Cometic head gasket, .074" thick. my throttle body arrived back from maxbore today. i have no excuse now not to get off my *** and reinstall.

back to the main question - what basemap should i go with? (and more importantly, for my education, Why?)

thanks guys