Coil swap yields 9.25 HP and 18.6 TQ
08-01-2009, 05:54 PM
#161
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I've been waiting for this question.
The LS1 coil brackets will not mount the truck coils.
The LS1 coil wiring harnesses will NOT work as the plugs and pin-outs on the coil end is different. The coil harness to engine harness plug is the same and the new harness will plug in directly.
The truck coil brackets are 10457736, 2 needed.
The LS2 wiring harnesses are 12601824, 2 needed.
The coils are 10457730 (AC D585), 8 needed.
GM/Chevy trucks had several different coils and brackets so be careful. These coils are the ones with the heat sink on the backside. Brackets from other coils will not fit.
On the the LS1 F-body cars, the A.I.R. piping will be in the way. On the passenger side, the fuel line and solonoid will be in the way. A little fanageling will be needed to get it in.
I had a set of LS7 spark plug wires laying around and they fit & look nicely.
The LS1 coil brackets will not mount the truck coils.
The LS1 coil wiring harnesses will NOT work as the plugs and pin-outs on the coil end is different. The coil harness to engine harness plug is the same and the new harness will plug in directly.
The truck coil brackets are 10457736, 2 needed.
The LS2 wiring harnesses are 12601824, 2 needed.
The coils are 10457730 (AC D585), 8 needed.
GM/Chevy trucks had several different coils and brackets so be careful. These coils are the ones with the heat sink on the backside. Brackets from other coils will not fit.
On the the LS1 F-body cars, the A.I.R. piping will be in the way. On the passenger side, the fuel line and solonoid will be in the way. A little fanageling will be needed to get it in.
I had a set of LS7 spark plug wires laying around and they fit & look nicely.
GM High Power Coil Near Plug Ignition Coil - IGNT-00172
We offer the coil pigtails / connectors themselves:
GM High Power Truck Ignition Coil Connectors and Pigtails
We offer a small adapter harness:
GM Delphi / Packard - Truck coil to LS1 coil adapter harness - CONN-85637
And the coil bank connectors:
GM Ignition Coil Bank Connectors and Pigtails
The question I have for the members here, is how much interest is there in seeing a bolt up kit with the coils on brackets with the connectors ready to go? We may start to build the sub harnesses which go from the coil bank connector to the coils and can have some custom brackets made but don't know how much demand there is.
If we see some strong demand here on the forum and or via pm's this is something we build to make it easier for those wanting to switch.
08-01-2009, 09:27 PM
#162
Considering most guys are going to pull these directly off a junkyard motor, your prices really aren't that competitive, at least until that supply runs out.
We currently offer the coils at a lower price than the dealer and most distributors:
GM High Power Coil Near Plug Ignition Coil - IGNT-00172
We offer the coil pigtails / connectors themselves:
GM High Power Truck Ignition Coil Connectors and Pigtails
We offer a small adapter harness:
GM Delphi / Packard - Truck coil to LS1 coil adapter harness - CONN-85637
And the coil bank connectors:
GM Ignition Coil Bank Connectors and Pigtails
The question I have for the members here, is how much interest is there in seeing a bolt up kit with the coils on brackets with the connectors ready to go? We may start to build the sub harnesses which go from the coil bank connector to the coils and can have some custom brackets made but don't know how much demand there is.
If we see some strong demand here on the forum and or via pm's this is something we build to make it easier for those wanting to switch.
GM High Power Coil Near Plug Ignition Coil - IGNT-00172
We offer the coil pigtails / connectors themselves:
GM High Power Truck Ignition Coil Connectors and Pigtails
We offer a small adapter harness:
GM Delphi / Packard - Truck coil to LS1 coil adapter harness - CONN-85637
And the coil bank connectors:
GM Ignition Coil Bank Connectors and Pigtails
The question I have for the members here, is how much interest is there in seeing a bolt up kit with the coils on brackets with the connectors ready to go? We may start to build the sub harnesses which go from the coil bank connector to the coils and can have some custom brackets made but don't know how much demand there is.
If we see some strong demand here on the forum and or via pm's this is something we build to make it easier for those wanting to switch.
08-03-2009, 09:12 AM
#164
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Our prices on the coils as an example are highly competitive with any new product and the kit would come in at a lower price point than adding all the parts together from GM or another new parts source. However, you are correct in that our prices for new parts will not be competitive with junkyard parts. I suppose to clarify the question, we should ask the following instead: How much demand is there for a solid, easy to install kit with new parts (not junkyard parts)?
08-03-2009, 09:18 AM
#165
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It'd be nice to see a few more dyno #'s to back up the OP's #s. I definitely think there would be a market for an easy to install kit. What kind of price are we looking at?
08-03-2009, 10:22 AM
#168
Kinda off topic for this thread, so my apologies to Paul (OP). I have a Procharger D1SC kit on the car and it dyno'd 479 with 8 psi pulley way back in 2003 at Force Fed Performance in Cali. I have since upgraded the intercoolers from the 3.5" thick to the 4.5" thick ones, installed the much bigger K&N cone filter that EPP recommends (the one that comes with the Procharger kit is small), and also put the better bypass valve on - the proflow black anodized one. On top of all this, I just did the coil swap... so I will be testing what this conglomerate group of mods has done.
I also have an 8 rib conversion with ATI damper that is going on. I was experiencing belt slip at higher RPM with the original 6 rib pullies. I ordered pulley sizes that should keep it at 8 psi.
08-03-2009, 11:47 AM
#169
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Kinda off topic for this thread, so my apologies to Paul (OP). I have a Procharger D1SC kit on the car and it dyno'd 479 with 8 psi pulley way back in 2003 at Force Fed Performance in Cali. I have since upgraded the intercoolers from the 3.5" thick to the 4.5" thick ones, installed the much bigger K&N cone filter that EPP recommends (the one that comes with the Procharger kit is small), and also put the better bypass valve on - the proflow black anodized one. On top of all this, I just did the coil swap... so I will be testing what this conglomerate group of mods has done.
I also have an 8 rib conversion with ATI damper that is going on. I was experiencing belt slip at higher RPM with the original 6 rib pullies. I ordered pulley sizes that should keep it at 8 psi.
I also have an 8 rib conversion with ATI damper that is going on. I was experiencing belt slip at higher RPM with the original 6 rib pullies. I ordered pulley sizes that should keep it at 8 psi.
08-03-2009, 11:54 AM
#170
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id be interested in a bolt on kit. Save me the time and gas of going to all the junk yard getting parts, then the bit of custom work to get the coils further down the valve cover, etc etc.
with dyno proven power gains a bolt on kit would be nice.
with dyno proven power gains a bolt on kit would be nice.
08-09-2009, 08:47 PM
#172
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Has anyone thought about calling TSP or email them about testing if this coil packs make anymore power than stock ones. Only reason i ask is because it always seems that TSP is dyno'ing some new cam, heads, or intake on there new dyno mule. Just food for thought.
08-13-2009, 08:01 PM
#177
"Are the regular LS2 coils better than LS1 coils?"
I doubt it. I think Megasquirt tested them and they're similar to the LS1 coils.
If you're gonna do the swap, go straight to the big heat-sinked coils.
We need somebody else to do an on-dyno test. If you have the new coils assembled on their brackets with the coil harness ready to go and the brackets in the car with like only one bolt attached to the valve covers, a quick change from one set to the other between pulls is easy.
(hows that for a run-on sentance!)
I doubt it. I think Megasquirt tested them and they're similar to the LS1 coils.
If you're gonna do the swap, go straight to the big heat-sinked coils.
We need somebody else to do an on-dyno test. If you have the new coils assembled on their brackets with the coil harness ready to go and the brackets in the car with like only one bolt attached to the valve covers, a quick change from one set to the other between pulls is easy.
(hows that for a run-on sentance!)
