Discussion
Because the colder 7s tend to foul up, particularly on short runs.
My TVR expert has also gone over to 6s, after taking loads of fouled up 7s out of badly running Chims and Griffs.
I put iridium 6s in my car after reading a small novel beautifully written by Chimpongas. My TVR expert saw the clean state of my plugs service after service and decided to put all Chims and Griffs on them
My TVR expert has also gone over to 6s, after taking loads of fouled up 7s out of badly running Chims and Griffs.
I put iridium 6s in my car after reading a small novel beautifully written by Chimpongas. My TVR expert saw the clean state of my plugs service after service and decided to put all Chims and Griffs on them
Edited by QBee on Saturday 19th August 10:23
More of the debate can be found here.
https://www.pistonheads.com/gassing/topic.asp?t=12...
I've also changed to 6s and found the car runs better and has no more idle issues.
If you have a highly modded rover v8 engine there is an argument to stay with 7s.
https://www.pistonheads.com/gassing/topic.asp?t=12...
I've also changed to 6s and found the car runs better and has no more idle issues.
If you have a highly modded rover v8 engine there is an argument to stay with 7s.
My personal experience of 5 RV8 cars over many years is that the 7's are fine. But all of my cars have been of the more highly tuned variety, e.g. current Griff 500. Because of where I live, I also rarely do less than 10 mile journeys, the vast majority being 30+ miles on fast roads.
I therefore suspect short journeys can cause fouling of 7's, which perhaps is more prevalent with standard rover engines with lower compression.
I therefore suspect short journeys can cause fouling of 7's, which perhaps is more prevalent with standard rover engines with lower compression.
Ive gone onto an after market Ecu and part of the install is to remove plug extenders for just good rubber caps and protective boots. This alone removes at least 8 reasons why you might have a misfire at some time.
It's a big confidence booster and just requires resistance plugs to help protect electrical systems.
After a year on Mbe Ecu using 7's that were always sooted up and after advice from the Ecu installer and passionate Tvr owners who had also had nothing but good experience.
went for the
BPR6EIX.
Cars never ran better.
I do often do short journeys and my engine isn't overly tuned but that sooting has completely gone.
The biggest obvious difference is how the car starts and runs for the first few seconds, it's always been groggy for 10-30 seconds before engine re build and since incl Mbe. Nothing major but was there. Now it takes about 5 seconds or less from cold to just run normal.
That's all in these plugs, nothing else has been changed.
The person who built me a fine little engine took the p1ss saying Iridium is for harsh modern combustion chambers and our old RV are never going to subject them to the same forces so with that knowledge maybe a standard tip plug with the slightly hotter 6 grade will do just as well.
I think I've done about 8000 miles on the Iridium tipped ones, they look like new.
On modern vehicles the service interval can be as much as 20,000 miles in a harsher environment so I'm thinking I'll change them at 30,000 miles.
Total over kill is what I was told but I really like them
I now have a very accurate temperature gauge since Mbe( no idea why but it is)
The engine running temp is pretty much exactly what it was on 7's so the plug itself might be marginally hotter and that theoretically transmits through the heads but it make no difference to engine temps in my view.
It just runs better
It's a big confidence booster and just requires resistance plugs to help protect electrical systems.
After a year on Mbe Ecu using 7's that were always sooted up and after advice from the Ecu installer and passionate Tvr owners who had also had nothing but good experience.
went for the
BPR6EIX.
Cars never ran better.
I do often do short journeys and my engine isn't overly tuned but that sooting has completely gone.
The biggest obvious difference is how the car starts and runs for the first few seconds, it's always been groggy for 10-30 seconds before engine re build and since incl Mbe. Nothing major but was there. Now it takes about 5 seconds or less from cold to just run normal.
That's all in these plugs, nothing else has been changed.
The person who built me a fine little engine took the p1ss saying Iridium is for harsh modern combustion chambers and our old RV are never going to subject them to the same forces so with that knowledge maybe a standard tip plug with the slightly hotter 6 grade will do just as well.
I think I've done about 8000 miles on the Iridium tipped ones, they look like new.
On modern vehicles the service interval can be as much as 20,000 miles in a harsher environment so I'm thinking I'll change them at 30,000 miles.
Total over kill is what I was told but I really like them
I now have a very accurate temperature gauge since Mbe( no idea why but it is)
The engine running temp is pretty much exactly what it was on 7's so the plug itself might be marginally hotter and that theoretically transmits through the heads but it make no difference to engine temps in my view.
It just runs better
Edited by Classic Chim on Saturday 19th August 22:53
ITVRI said:
More of the debate can be found here.
https://www.pistonheads.com/gassing/topic.asp?t=12...
I've also changed to 6s and found the car runs better and has no more idle issues.
If you have a highly modded rover v8 engine there is an argument to stay with 7s.
Ditto, when the car was service end of June I supplied 6's and the car ran tonnes better.https://www.pistonheads.com/gassing/topic.asp?t=12...
I've also changed to 6s and found the car runs better and has no more idle issues.
If you have a highly modded rover v8 engine there is an argument to stay with 7s.
Slightly off topic, also now running it on regular unleaded and it drives so much smoother and nicer. No noticeable loss of power or anything just runs so much better!
Classic Chim said:
After a year on Mbe Ecu using 7's that were always sooted up and after advice from the Ecu installer and passionate Tvr owners who had also had nothing but good experience.
went for the
BPR6EIX.
Cars never ran better.
I use the BPR6EX, sparks, cheaper although you would have to change them with your 6000 miles service.went for the
BPR6EIX.
Cars never ran better.
Gassing Station | Chimaera | Top of Page | What's New | My Stuff