CrossFire TBI problem
DUB
HOW was the gasket between the intake and the top plate??? I bet it was dried up and cracking into pieces???
DUB
Any other recommended upgrades since I'm this far into it?
Last edited by Bandit524; Jan 31, 2016 at 08:33 AM.
Last edited by terry82; Jan 31, 2016 at 09:35 AM.
DUB
DUB
The Best of Corvette for Corvette Enthusiasts
Opening up the discharge end of the runners accomplishes nothing other than adding a teensy tiny bit to the runner's volume. It may look cool but that's all it does. At the very best you can only achieve about a 10% flow rate increase which is still way short of what is needed.
Is there a new improved coolant temp sensor I should install? Seems I recall reading a post here about it but can't find it!
And I really appreciate you and everyone else helping me work through this!
You can get one for a 1985 Corvette and wire it in with a NEW electrical connector. BUT...it is IMPERATIVE that you get the WIRES CORRECT and not switched.
DUB
Yes, the OEM had a round end and single wire whereas the replacement has an oval end and two wires. Standard Motor Products sells them and they complete with the necessary butt connectors and instructions. I changed mine over about 25 years ago and it only took about 30 minutes.
Due to using a scanner when tuning engines like this...if the coolant temp sensor flag on my scanner shows that it is fine...I leave well enough alone. IF it becomes 'touchy'...I replace it with the new design and new electrical connector. If it were MY car and I was at this point....I would replace it. Because...with my luck...in a few weeks the coolant temp sensor would act up and I would be having to replace it....but that is my luck.
DUB
Due to using a scanner when tuning engines like this...if the coolant temp sensor flag on my scanner shows that it is fine...I leave well enough alone. IF it becomes 'touchy'...I replace it with the new design and new electrical connector. If it were MY car and I was at this point....I would replace it. Because...with my luck...in a few weeks the coolant temp sensor would act up and I would be having to replace it....but that is my luck.
DUB
1. The relay is located in the battery compartment on the forward wall, next to the ECM.
2. The relay is screwed to the wall from the other side (behind the driver's seat), and the screw heads are under the carpet. I elected to unplug mine and leave it in place, rather than tearing out the carpet. The plug wiring is long enough so it can be pulled back closer to the battery, where it's more accessible. I plugged in a new relay and left it in that position. The relay is all plastic and very light, and I don't see any potential issues with it hanging free in the battery compartment.
3. The original style relay is only available at a few select vendors, and it's expensive. Stocks seem to be running out. The later relay ('84-'87) has different mounting ears than the original, but it's electrically identical and fits the plug exactly. Also, it's available from many sources, including run-of-the-mill auto parts houses.
Good luck with everything!
Last edited by 454Luvr; Feb 2, 2016 at 11:52 AM.
1. The relay is located in the battery compartment on the forward wall, next to the ECM.
2. The relay is screwed to the wall from the other side (behind the driver's seat), and the screw heads are under the carpet. I elected to unplug mine and leave it in place, rather than tearing out the carpet. The plug wiring is long enough so it can be pulled back closer to the battery, where it's more accessible. I plugged in a new relay and left it in that position. The relay is all plastic and very light, and I don't see any potential issues with it hanging free in the battery compartment.
3. The original style relay is only available at a few select vendors, and it's expensive. Stocks seem to be running out. The later relay ('84-'87) has different mounting ears than the original, but it's electrically identical and fits the plug exactly. Also, it's available from many sources, including run-of-the-mill auto parts houses.
Good luck with everything!
Any idea what this gasket is for? It was in the TBI rebuild kit.
Spend your money how you like...BUT I would NOT buy a relay and replace it UNLESS I have check to see that the voltage drop is due to it. Simple to check with a volt meter.
YES...you can plug off the vacuum line for your smog system for the time being.
DUB












