Spark Plug Selection
Thread Starter
Advanced
Joined: Nov 2001
Posts: 73
Likes: 0
From: Snellville GA
Re: Spark Plug Selection (Jvette73)
You know I've got the Bosch platinums now and I think it is causing me trouble.
How do you like the 200R4 you got? I am trying to decide between it and the
700R4. 200 looks easier to install. What's your thoughts?
Blake
How do you like the 200R4 you got? I am trying to decide between it and the
700R4. 200 looks easier to install. What's your thoughts?
Blake
Melting Slicks
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
Re: Spark Plug Selection (Blake-73)
I've gotten to really like NGK's, I've run them in normally aspirated and nitrous applications, they come in a wide variety of heat ranges as well to suite almost any need.
:cheers:
Pat Kunz
:cheers:
Pat Kunz
Team Owner
Joined: Feb 2001
Posts: 49,198
Likes: 0
From: All in!
Cruise-In IV Veteran
St. Jude Donor '03-'10
Re: Spark Plug Selection (Blake-73)
I switched over to the rapidfires.
I don't know that I can really tell any difference over the normal AC Delco plugs, but I can't say that they cause any problems.
I don't know that I can really tell any difference over the normal AC Delco plugs, but I can't say that they cause any problems.
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
Re: Spark Plug Selection (Jvette73)
stay away from Bosch platimun
Do the science before selecting...don't ask the salesman.
Senior Member since 1492
Joined: Aug 2000
Posts: 87,913
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Spark Plug Selection (Rockn-Roll)
I've been using Bosch Platinum since they first came out about 15-20 years ago. Never had one foul! I've used them in V-6's and V8's.
If I have an ignition problem, I know to check the plugs last, and so far I haven't had to check them! :D
If I have an ignition problem, I know to check the plugs last, and so far I haven't had to check them! :D
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Spark Plug Selection (sharklover)
Bosch plugs worked fine for me however, in my case, they wore and went bad long before the should have. If you look at the tip of a new bosch plug you will see that the electrode is flush with the insulator. Its the tiny little dot in the middle. Well, on mine that little tip began to burn out up into, and leave a recess in the end of the insulator. This was creating misfiring. For the price I paid for these plugs, they didnt last much longer then standard ones.
One thing about standard AC plugs is some of them are made in a "comercial grade" as well. They have a beefier design with thicker electrode and insulator. Check one out at your parts counter and compare it to the standard AC. Just add a CR in front of the standard plug# i.e. R43TS becomes CR43TS. ive used these and like them too.
Blake-73, what tranny do you have in your car now? Im checkin the archieves for previous posts ive made on the subject. There are a few other members using the 200R as well. If I cant find the other posts, ill fill you in.
One thing about standard AC plugs is some of them are made in a "comercial grade" as well. They have a beefier design with thicker electrode and insulator. Check one out at your parts counter and compare it to the standard AC. Just add a CR in front of the standard plug# i.e. R43TS becomes CR43TS. ive used these and like them too.
Blake-73, what tranny do you have in your car now? Im checkin the archieves for previous posts ive made on the subject. There are a few other members using the 200R as well. If I cant find the other posts, ill fill you in.
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Spark Plug Selection (Blake-73)
Blake, The 200R is a much more direct bolt in swap if you're changing from a TH400. I believe that all automatic equiped 73's came with the TH400. Does yours still have the 400? When a debate comes about between the 700R and 200R the only negitive thing people say about the 200R is that its weaker. I dont totally agree with this notion because the pro tranny builders say both thannys, the 200 and the 700 can be built to handle about the same amount of power and tq. I love my 200R and am glad I went with it. Here are some reasons I went with the 200. Keep in mind I swapped out a TH400.
1. The 200 is same length as the Th400.
2. Original crossmember was used unmodified.
3. exaust did not need modification.
4. a yoke change is needed but driveshaft did not need to be cut.
5. the 200 is lighter then the 700 and has lighter internals drawing less power loss to the drivetrain.
6. the gear ratios are closer range on the 200. no big jump between 1st and second like that of a 700.
After looking at all these advantages, it was not hard for me to go with the 200R. The 200R works great with 3.90 gears. Good acceleration and cruising revving 2250rpm@70mph locked in 4th.
1. The 200 is same length as the Th400.
2. Original crossmember was used unmodified.
3. exaust did not need modification.
4. a yoke change is needed but driveshaft did not need to be cut.
5. the 200 is lighter then the 700 and has lighter internals drawing less power loss to the drivetrain.
6. the gear ratios are closer range on the 200. no big jump between 1st and second like that of a 700.
After looking at all these advantages, it was not hard for me to go with the 200R. The 200R works great with 3.90 gears. Good acceleration and cruising revving 2250rpm@70mph locked in 4th.
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Spark Plug Selection (Blake-73)
Yup got it from BTO. Tranny&convertor(2200stall). Also got thier TV cable kit and dipstick tube, toggle switches, in line filter, driveshaft yoke, pressure gauge. The plastic inspection cover they sell doesnt fit. The stock steel TH400 cover will work when holes in cover are re-drilled. more info on the tranny swap and dist info coming..time to go eat
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Spark Plug Selection (Blake-73)
Blake-73, heres a earlier post on my tranny swap. I did some things, then undid them and did them again. Its a long post. Pretty much what I went through is there. http://forums.corvetteforum.com/zerothread?id=139904
Heres some other links I used to help me with my mods. http://www.drwtransmission.com/thm_200-4r.htm
http://www.g-body.org/tech/tranny/200_700.html
http://www.angelfire.com/on/geebjen/timing.txt
http://www.prestage.com/carmath/calc_Gears.asp
Heres some other links I used to help me with my mods. http://www.drwtransmission.com/thm_200-4r.htm
http://www.g-body.org/tech/tranny/200_700.html
http://www.angelfire.com/on/geebjen/timing.txt
http://www.prestage.com/carmath/calc_Gears.asp
Burning Brakes
Joined: Oct 2001
Posts: 842
Likes: 3
From: Woodruff SC
St. Jude Donor '10
Re: Spark Plug Selection (Blake-73)
I know this may sound stupid, but I've got better and longer service out of Autolite plugs(FoMoCo) than any others. I ran them in my Vette for about 2 years, they still looked good, but I changed to AC (Genuine GM :rolleyes: ). Have put in 2 sets in 6 months. :mad Going back to Autolite soon. Tried Bosch in a 4.3 V6, maybe a year. Ran Champion in a 327/475 hp engine, :cry changed every 3 to 4 weeks when adjusting the valves.
I worked for Autolite 7 years making the things, I know the quality is good. Plus I remember making the metal shell for other brands too. By the way, we always heard that NGK stood for NO GOOD KIND...
I worked for Autolite 7 years making the things, I know the quality is good. Plus I remember making the metal shell for other brands too. By the way, we always heard that NGK stood for NO GOOD KIND...
