rrt898

I have a 1986 coupe with iron heads. I installed TPIS headers this summer. My problem is that I keep burning number 6 wire because of the straight boot. I did install boot protectors but; it only lasted a little bit longer. I wanted to know what angle boot should I buy? Also, what is good wire to use?


Thanks

dizwiz24

I had tpis 1 3/4" headers on my 93 lt1.

They were the best fitting headers i have ever had (in terms of tube bends, clearances, and spark plug wire clearance).

I used msd wires for lt1 (do not recommend these spark arcd At the boot to wite/junction) and also taylor wires.

Both wires fit these well without burning

HAD2HAV2

I don't know if this helps, my 88 has an angled plug spark plug boot, #6, due to the Oil check tube. I have new MSD plugs and the #6 boot is different.

mtwoolford

don't know if this will help, but if it's a single wire, parts houses used to carry individual wires and it's just a matter of physically matching up one to what you need.

aklim

All 90 degree MSD wires but custom cut and not precut.

HAD2HAV2

All my MSD plug wires are 90 degrees except for #6 that has a 45 degree bend. Should clear a header.

project C4

these are hooker headers but all 90's for sure...

c4cruiser

On my '87, the #6 plug boot was not a 90 degree boot, maybe 135 degree?? That was necessary to clear the OEM location of the oil dipstick tube. The aluminum heads also have angled plugs.

When I installed my Hedman Headers, I bought a Taylor 8.2mm plug wire set that had all 90 degree boots. The passenger side header required a slight relocation of the dipstick tube and the 90 degree boot worked fine as the #4 and #6 header tubes are angled to the rear compared to the factory manifold.



I also used boot protectors and made sure the wires got routed and secured away from the header tubes.

rrt898

I put a 90 degree boot on there for now but; it wasn't easy around the oil tube.

rrt898

This was the fix for now.

vader86

The last set of MSD Superconductors I bought didn't have the straight boot, this solved the problem.

When my 86 had straight plug iron heads, I'd burn 2-3 wires a year, with the same covers you have there.

project C4

Short plugs also help in some situations. When I had straight plug heads I needed a short plug on #5 to get it off the header.

jlfx car audio

How did your headders fit I to your 86? Just installed mine and I had to get regressive to get the passenger side #6 bend to clear the frame.

rrt898

Has anyone moved the oil dipstick around to gain clearance???

aklim

I don't believe I did movement with my AFR 190 heads with TPIS headers for my 91

project C4

I did not have that problem or any other. they are a perfect fit on my car.

project C4

I used a different dip stick that bolts to the block as you see in the pictures.

whalepirot

Same problem with these TPIS, but plug 7, for me. TPIS recommended dimpling the header for more clearance.

I bought short Accel plus which were the same length as what was already there, but yellow.

The only solution I found was a set of plug wires with ceramic ends (boots, sort of).



The pricey Taylor boots were a waste of money, for me.

FC_Smith

i just installed these exact cables in my 85 and they are working great

rrt898

The bolt flanges are bigger and longer than Hooker (see my pic). The space is very tight.