put the 550's in!!!
sup yall ... i guess its time to share my kit.. ok.... 03 with 6spd..obx manifold ,TB0368 with the flange milled (it has a t3 flage bolt pattern but there was a stupid reaces that had to go) , diy down pipe and IC piping ,ohhh and almost forgot im using a FIC for fuel control....
i have been running 7psi for about 7-8 weeks on the stock 265's i decided that i wanted to up the boost (around 15psi).. so i picked up a set of turbo II (550cc)injectors for $20..(same guy sold me a pair of 4POT calipers for $40) ....tonight i decided to put in the 550's and load the map i have been working on and and it seem like a near perfect match now its time for some fine tweaking.. ill load some picks in the next couple days so you can Gawk.. |
isnt 15psi a little bit on a high side for stock 03 motor? or do you have some work done to it?
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If his tune is good he'll be fine. I just finished installing my 550s about... an hour ago.
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i just finished looking at my 550s :)
i dont know when ill have time to install them along with megasquirt :/ |
What the hell is hmm. better quit that shit.
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well 15psi feels good and i didnt blow any IC piping apart...yet ..
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sweetmeatz - Are there any general rule of thumbs that can be used to get the fuel maps close? How much additional fuel is needed per pound of boost and is it a more or less a linear relationship, independent of rpm, etc. I ordered Begi's S1 kit and am planning on going with the FIC with stock injectors. Thanks, Carl
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well AEM says run 125%more fuel for 15psi with works out to 8.3% a pound of boost that will get u "close" but there calculations arnt a 100% since my car didnt like to idle on the 550s it was running to lean at idle the formula for puting in bigger injecters in is ... stock injectors\new injectors - 1 ( 265cc\550cc-1= -52% ) but since there is such little power going to the injectors at idle cuting the hold time by 52% wasnt leting them fire right so i adjusted to around to -42% and it seem to work better...
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I thought the rods on an NB engine would bend after 12 or so psi?
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Originally Posted by sweetmeatz
(Post 159574)
well AEM says run 125%more fuel for 15psi with works out to 8.3% a pound of boost that will get u "close" but there calculations arnt a 100%
If you're running 15psi on an '03 motor with no wideband, at least take pictures when you blow your shit up. |
Originally Posted by Savington
(Post 159604)
You need to SLOWLY increase the boost and tune each pound you add using a wideband, like the Innovate LC-1 or the AEM UEGO
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well i ran a solo event and lapping all day yesterday and i have no issues ...ohh and by the way i have an LC-1 and i didnt tune my fuel map to wht AEM said i used it as a starting point
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Originally Posted by sweetmeatz
(Post 159574)
it was running to lean at idle the formula for puting in bigger injecters in is ... stock injectors\new injectors - 1 ( 265cc\550cc-1= -52% )
Yeah that's weird huh. I did the math and mine came out to -42 for my 460's but in actuality I needed between -30 and -25...odd. Let's compare maps! 460cc injectors 14b @ 6psi Right now, I havent tuned the o2 map. Been running without the narrowband. 14.5-14.8 cruising. Rich up top. WOT is probably good but my ignition is breaking up with 0.035 gap so I cant say for sure http://www.aemfic.com/maps/secondmap.mdb |
On my rx7 afm and safc i ran -45 or so at idle progressing to 0 by 3K rpm and 4+psi of boost. But i dunno midrange etc never realy worked for me. I am hoping for some nice results from you sweetmeatz your setup is interesting to say the least.
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Originally Posted by sweetmeatz
(Post 159154)
i have been running 7psi for about 7-8 weeks on the stock 265's
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yeah the o2 shit is uber un-untuitive.
It'd be nice to say - send the regular signal out of boost but send it 0.35v in boost or whatever. The newest version of software has an "offset" functionality . I was thinking of using that. i.e. 0 out of boost and -0.12 in boost? I dunno. Im trying to get my fuel map perfect, then worry about the o2 stuff. |
4 Attachment(s)
here are some pics of my engine bay
Attachment 215700 Attachment 215701 Attachment 215702 ohh and this is wht a bp rod looks like after 25psi (out of my old 323) Attachment 215703 |
nice banana rod and gunness catch can ... whats up with your throttle body pipe? oh and why the hell do you have zipties holding the AFM on??
Otherwise looks pretty cool. Green valve cover is definitely unique. |
sweetmeats - have you had any luck with the O2 signal modifier in the FIC software. I swear I tried everythign yesterday but it kept wanting to go to the high 14's in boost. The FIC manual SUCKS. I tried offset with -0.3 in all the boost cells as well as....i forget, but I think I tried about everything.
I'll just keep running without my o2 plugged in until I can get this thing figured out. |
Dude, someone painted your valve cover green.
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Originally Posted by SloS13
(Post 161191)
sweetmeats - have you had any luck with the O2 signal modifier in the FIC software. I swear I tried everythign yesterday but it kept wanting to go to the high 14's in boost. The FIC manual SUCKS. I tried offset with -0.3 in all the boost cells as well as....i forget, but I think I tried about everything.
I'll just keep running without my o2 plugged in until I can get this thing figured out. |
Originally Posted by akaryrye
(Post 161111)
nice banana rod and gunness catch can ... whats up with your throttle body pipe? oh and why the hell do you have zipties holding the AFM on??
Otherwise looks pretty cool. Green valve cover is definitely unique. i ran out of clamps and thats wht i had at the time so thats wht i used they seem to hold up well haha.. i dont know whts wrong with a 2 1/2" 90 degree elbow for the TB its was cheap transport shops have everything |
Originally Posted by Al Hounos
(Post 159575)
I thought the rods on an NB engine would bend after 12 or so psi?
+1 Bell advises not running over ~12 on stock internals on NB (just a fyi).. All depends on how long you want the motor to last and how good your tune is :-) |
How's ur idle on the 550's ? There's a somewhat religious arguemnt going on w/my friend and I over idle issues on 550s. Mine idles a little on the rough side till fully warmed up (though makes it sound evil) but usually is not an issue.. (I have no pulsewidth control so fine tuning idle = non existant, I can change fuel/timing but again with big injectors pulsewidth control is your friend).
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Originally Posted by SloS13
(Post 161191)
sweetmeats - have you had any luck with the O2 signal modifier in the FIC software. I swear I tried everythign yesterday but it kept wanting to go to the high 14's in boost. The FIC manual SUCKS. I tried offset with -0.3 in all the boost cells as well as....i forget, but I think I tried about everything.
I'll just keep running without my o2 plugged in until I can get this thing figured out. |
i thought it was the 99-00 that had issues with the higher boost???...i have a set of B6T rods and im working on geting a set of BP05 pistons cryotreated.. my AFR under boost right now seems to stay around the 11.6-12.2 range ... im also thinking of running a pre 99 head ported with +1mm valves and a nice set of cams ...
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