Regap Plugs?
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Rockn' The Galant
Joined: Jan 2005
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From: Shreveport, LA
Regap Plugs?
Hey Guys,
I was reading around the internet and found out that on piston engines most people go one step colder and regap the plugs for a supercharger added in because of the new comb heat.
Should I be doing this? I know it misses every like 5-10 seconds at idle when it's warmed up, like it'll just like "put" the rpms will drop by about 100 and rise back real quick...
Does anyone have any recommendations for the plugs, links possibly?
- Tech
I was reading around the internet and found out that on piston engines most people go one step colder and regap the plugs for a supercharger added in because of the new comb heat.
Should I be doing this? I know it misses every like 5-10 seconds at idle when it's warmed up, like it'll just like "put" the rpms will drop by about 100 and rise back real quick...
Does anyone have any recommendations for the plugs, links possibly?
- Tech
Banned. I got OWNED!!!
Joined: Aug 2004
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From: Jacksonville, NC
Rotary plugs come pregapped... If your car isn't running right, I can assure you the plug gap isn't the problem... What does your entire setup consist of? Sounds like it's not bypassing... Are you pulling any boost at idle?
Banned. I got OWNED!!!
Joined: Aug 2004
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From: Jacksonville, NC
Originally Posted by Jaiyurai
lol... pregapped??... can you even gap them?
hahhhaha
hahhhaha
Former Moderator. RIP Icemark.
Joined: Apr 2001
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From: Rohnert Park CA
The NGK multi-ground plugs are what they are refering too, when people are posting that you can not re-gap the plugs.
They are not the only plug to use.
Most Iridium plugs for the RX-7 are gapable as well as Champion and a couple other manufactures plugs as they are not multi-ground plugs
They are not the only plug to use.
Most Iridium plugs for the RX-7 are gapable as well as Champion and a couple other manufactures plugs as they are not multi-ground plugs
Last edited by Icemark; Mar 13, 2006 at 11:23 PM.
Thread Starter
Rockn' The Galant
Joined: Jan 2005
Posts: 1,901
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From: Shreveport, LA
Ok...so my setup isn't exactly STOCK or anywhere close..lol
I also have a hung open injector, found that one out when I went to change the fuel pump and no pressure was there after driving the car not but an hour earlier...
Icemark, is there any specific plugs that I should shoot for or just the stocker NGK's should be fine? Remember no intercooler, but will be doing water/acl injection VERY soon...
I also have a hung open injector, found that one out when I went to change the fuel pump and no pressure was there after driving the car not but an hour earlier...
Icemark, is there any specific plugs that I should shoot for or just the stocker NGK's should be fine? Remember no intercooler, but will be doing water/acl injection VERY soon...
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Former Moderator. RIP Icemark.
Joined: Apr 2001
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From: Rohnert Park CA
Originally Posted by Tech_Greek
Icemark, is there any specific plugs that I should shoot for or just the stocker NGK's should be fine? Remember no intercooler, but will be doing water/acl injection VERY soon...
They are the latest revision for the RX-8 leading plugs. Re-gap them to around .035 or so for a little extra power (they come gap'd at .048) if your plug wires and coils are in good condition.
They are around $20 a plug however, but life will be around quadruple what the stock NGK copper plug is, so it pays back pretty quick with added power and long life.
The other plug I like is considered a racing plug and is the Denso (ND) Iridium IRE01-27
But they usually run around $35 a plug
Last edited by Icemark; Mar 13, 2006 at 11:25 PM.
Former Moderator. RIP Icemark.
Joined: Apr 2001
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From: Rohnert Park CA
For the trailings, either the NGK BR9EIX or the NGK RE9BT. The RE9BT has a nice fine wire ground,
while the BR9EIX uses a conventional single ground
If you were on a budget, the NGK BR7EIX for leadings and NGK BR9EIX for trailings seem to work, but I am unsure how the flame propagation works on a thick ground plug. I know some people are running them, I just have not done any real research on what happens on the leading plug kernal with a thick ground.
while the BR9EIX uses a conventional single ground
If you were on a budget, the NGK BR7EIX for leadings and NGK BR9EIX for trailings seem to work, but I am unsure how the flame propagation works on a thick ground plug. I know some people are running them, I just have not done any real research on what happens on the leading plug kernal with a thick ground.
Last edited by Icemark; Mar 13, 2006 at 11:30 PM.
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