Plug opinions
#1
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Plug opinions
I have a Ls1 with a Super Victor intake and a 4150 plate kit .062n .046f. 91 pump gas in the main tank and have c16 in the stand alone system. The plugs are NGK BR7EF. The air fuel is rich wide band reads 11.0- 11.2, next night out I'm going to switch to a .043f jet. Total timing is 30 degrees I'm pulling 5 right now on the bottle.
I'd like some opinion on the spark plugs, The plugs aren't 100% clean, they only have 1 full pass on them, but I did brain fart and idled the car as I loaded and unloaded it off the trailer before pulling the plugs.
Here is a closer picture of #7 it look a bit different from the rest.
I'd like some opinion on the spark plugs, The plugs aren't 100% clean, they only have 1 full pass on them, but I did brain fart and idled the car as I loaded and unloaded it off the trailer before pulling the plugs.
Here is a closer picture of #7 it look a bit different from the rest.
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I based it off of this jet chart, since I have the .122 and .187 solenoids I'm also running 7psi fuel pressure in the standalone system.
I was going to switch to a .043 based on the sheet you posted.
I was going to switch to a .043 based on the sheet you posted.
Last edited by RobsZ28; 04-27-2015 at 03:30 PM.
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#8
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Don't like the specs on 2,3,4,5,6,7, and maybe 8 ?
7 looks to be hotter than the rest (gap the same ?)
Magnified to 450%...looks a little lean (but pic isn't that great at that %)
Can you take pics in the macro setting ?
7 looks to be hotter than the rest (gap the same ?)
Magnified to 450%...looks a little lean (but pic isn't that great at that %)
Can you take pics in the macro setting ?
#9
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347ci Ls1
Forged Eagle 6.125" rods and Wiseco -3.2cc pistons
11.1 comp.
Steel top piston rings gap is .029 top and .032 2nd (ring gaps were set for 350+hp nitrous)
BTR stage 4 nitrous cam 239/250 .620''/.596'' 112LSA
TEA 243 Stage 2 heads milled to 59cc with Lunati dual .650" springs
Edelbrock Super Victor intake
Accufab 4150 throttle body
Texas Speed 1 7/8" headers
Yes they are 7 heat range plugs
I have too much idling and driving around time on these plugs, to be very useful now. I'm going back out to the track Sat. night, I'll make a run and pull them right away.
I have no idea what macro setting is.
#10
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On your camera it will look like a flower icon. It's for really up close shots (like doing pics of flowers or bugs...really small stuff.
http://drscavanaugh.org/digitalcamera/macro.htm
http://drscavanaugh.org/digitalcamera/macro.htm
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I went back to the track last night, Everything remained the same except I pull 1 more degree of timing. Stand alone fuel psi was 6.5, .062n .046f. 91 pump gas and c16 in the stand alone system. The plugs are NGK BR7EF. Total timing was 30 degrees I pulled 6. No idle this time, shut it down and pulled the plugs
Cyl #8 was the hot one
Fuel ring is light on a couple plugs
Cyl #8 was the hot one
Fuel ring is light on a couple plugs