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Info: car is running open loop, I am making tuning adjustments to check against the wide band and tables so I have it running a little rich. I am more concerned about heat range and such. According to what I see (idle commanded at 13.8) these look good except for 3. Photos are 1 3 5 7 in that order. I can't get to the other side in my garage right now but the other side has my wide band in it.
Not really sure what is up with 3. 1-5-7 all seem pretty even. 3 looks particularly rich. Wonder if its the egr hump in the intake doing something weird?
There was some idle time on these before I pulled them. Yes it isn't great running them for a bit but I figured it is better than nothing. More importantly it looks like the heat range and timing is safe. No detonation or the such and while fat, it isn't pig rich by any means...
I'm not familiar with the 84 but does the PVC dump into the intake near #3 intake port?
I changed the intake on my 86 and now the pvc dumps near #6 intake and so my #6 plug is darker than the rest.
Last edited by jazfe; Nov 13, 2020 at 08:36 PM.
Reason: Additions
I'm not familiar with the 84 but does the PVC dump into the intake near #3 intake port?
I changed the intake on my 86 and now the pvc dumps near #6 intake and so my #6 plug is darker than the rest.
PCV on mime comes in above 7. But the runner lqy out means the port is above the inlet for 6 and 8. My fuel pressure vacuum reference is however close. May have to check for seepage.
..... Heat range looks OK ... the color change should be about half way 'round the bend on the J-strap ... what cam , intake/injector size ?
224/230 (226/231 checked it several times, idk why there is a difference) 112 lsa and I installed it straight up. 110 ICL (degreed at 109.25) so it has 2.75 degrees advance ground in correct? .510/.517 lift at the valve with my rockers (thinking about switching to 1.6 though which will be about .536/.544, had plenty of piston to valve clearance when I checked it. I actually measured it one head on the other off and checked it opposing from each other so measured exhaust lift and intake lift at TDC on 1 and then actuated the valve to the height indicated with a checker spring and then continued until it kissed the piston.) comp ultra pro mags.
Intake is (still) my stock CFI intake. I have the ported unit on my bench almost ready to go in and a renegade that doesn't work that I'm trying to find a machine shop that can attempt a fix... its hard when the whole thing is milled wrong on the head surface and the bolt holes are off if you fix it...
80 lb/hr 454 injectors that are reference to 15 psi at idle and about 24 wide open. She runs well until it runs out of intake.
..... That's 2 injectors total correct ? ... works out to 20's if you had 8 ... about the same as TPI but pressured up a little ... why not switch to MPFI and save yourself some grief ! .....
..... That's 2 injectors total correct ? ... works out to 20's if you had 8 ... about the same as TPI but pressured up a little ... why not switch to MPFI and save yourself some grief ! .....
2, correct. IIRC I end up around 29 lb/hr at wide open. My DC is topping out around 68% at the moment woth wide open afr holding around 12.3 (need to get on a dyno, too hard to tune on the street and tracks are hard to access with how much I work in the summer)
As far as the intake... I know... but sometimes hot rodding is about the journey and having fun with doing it differently more so than just the end you know? I pop the hood and it looks pretty stock aside from headers and no smog pump. I like that very much. Its plenty fun as it sits and only can go up from here.
Pulled the other side. I'm thinking maybe one beat range cooler. In order: 2,4,6,8. I threw in fresh plugs and did 2 1/4 rips as well as a quick wot to my driveway and coast to keep them clean. So it should be more readable. Going to check the data log now.
Help check my plug reading?
