What Plugs with Aluminum GN1's...

[19TTA89]

What are you guys using Plug wise in your aluminum GN1's...

Thanks,Shawn

 

[DR BOOST]

AUTOLITE 103

 

[Otto J]

Depends on the boost your running. I found autolite 103 to be to hot when running boost in the high 20's

 

[DR BOOST]

so which one would you recommend K ?

 

[19TTA89]

Originally posted by KLHAMMETT
Depends on the boost your running. I found autolite 103 to be to hot when running boost in the high 20's

Then what plug do you use???I really dont plan on running boost in the high 20's...Maybe Mid 20's tops...THere are Autolite 103's in there now...But was wondering what other options were available...

Can The Stock AC Delco plugs be used in them???

Thanks,Shawn

 

[Otto J]

Well using Cal Hartlines recommendation i am using Autolite racing plugs #AR3932, But i will be running into the 30+ # range when is dialed in.
In Len Freemans 109 block car we used NGK R5724-8
We found that the autolite 103 can run a little hot at high boost and it can melt the plug. But i am sure others have had different results
I believe a R42LTS would be the correct Delco plug,Running in the mid 20#s the 103's should be fine

 

[SITHV6]

intresting, but expected

I notice theres no mention of the IRIDIUM plugs...103's are the common census for the GN1's then? hmm? huh? hmmm? least
NGKs are considered

 

[19TTA89]

Originally posted by KLHAMMETT
I believe a R42LTS would be the correct Delco plug,Running in the mid 20#s the 103's should be fine

So it wouldnt be the stock plug for the gn...The TS's....It would be the LTS???..Just making sure...And thanks for the Help...Much Appreciated

Thanks Again,Shawn

 

[Otto J]

TS is a short plug, LTS is a long plug

 

[Nick Micale]

NO Iridium!

Originally posted by SITHV6
I notice theres no mention of the IRIDIUM plugs...103's are the common census for the GN1's then? hmm? huh?....

If you are planning to use Iridium plugs in your turbo Buick, save yourself the $60-70 and DON"T.

First time at the track with a new set they mis-fired at RPM. Street use on only pump gas they fouled in short order.

The AC plugs have a tendency to self-destruct at high boost, especialy the long reach version.