Well. I checked the timing. It was dead on 0° but something was rattling and bugging the crap out of me so i pulled the air cleaner off. Took the base to my garage and drilled the stupid heat riser rivets and removed that rattling p.o.s. took it for a test spin. Hmm seems to have more go from a stop sign. And that rattle is gone!
Meh, decided to remove the original breather that came with it that was 13" and go with a 10" open breather so i can install a better and sturdy finned valve cover thats not leaking /warped and it is a bit taller than the one on there now so the smaller diameter gives me the right clearances and i can wipe out the oil leaks. :)
Well, today I took it for a ride to Lowes with my nephew and on the way there all was well (not that it was bad at all) then on the way back he accidentally kicked loose the park neutral switch. it has more power without it in park/neutral but it was missing information from the vss and threw a code for both vss as well as ignition timing control. So, VSS is on the way from JTR. now the question is I noticed the VSS is 2 wire. I also noticed the ecu only has a slot at A10 which is Brown wire. what does the other wire go to? power, ground, uhh? lol
On another note. Jtr has apparently had some setbacks... Company that made the vss for them went out of business a long while back. And the brother that made them after that passed on 3 weeks ago so it will be delayed a little while as he has all but one of the parts needed to make it. (The item is on the way to them)
and because I'm impatient... I also ordered a vss from summit racing...
250-4153
https://www.summitracing.com/parts/rpc-250-4153
so we shall see.
Alright, so its been a while. I replaced the piston rings. ( long story but fixed oil leaks caused by Blow-By) I currently have everything installed minus the VSS. and as long as I keep it in "Park/neutral" no check engine light. but here is my issues.
1. at startup its perfect. even idles down very nicely.
2. if I quickly actuate the throttle it fires out the throttle body.
3. Driving when I try to give it a little gas I can feel it fall off then back on again
4. it ran good on my way to and from the muff shop. and good on the way to work. then on the way home it went blah. ( makes me think about the fuel tank and aeration) I am going to check fuel pressure but don't know exactly what it should be.
5. Is the Original 1bbl intake mani too restrictive for the gm 2 bbl TBI?????
and my vac is pulling right at the base of good. 18 inch lbs and I think I may need to replace the hydraulic lifters as well since after adjusting the lash I found that a couple got loose after 1 turn... but its quiet at the moment.
Ohh and side note... that vss from summit racing is a 8k pulse. that was not on the main page so I returned it. but I did finally get the one from the JTR guy. VERY nice construction.....
Last edited by r.e.c.enthusiasts; 12-23-2017 at 08:47 PM.
Well, i know its been a while. Ive had 2 inline pumps go hydro static lock on me. Now im ordering a aeromotive 200 in tank fuel pump and a new tank as mine from lmc truck was very flimsy in my opinion and it cracked (couple years old as well so...) But i also have a question. The vac signal on the tbi. Its sitting on the factory l6 250 1 bbl intake with an adapter. Would that small port to the 2 large ports cause some bad /low vac signals? Its not throwing a code but it makes me wonder. Would putting the clifford 6=8 intake exhaust improve those numbers? Im fairly certain it will improve everything else. But 1 thing at a time. ��
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