Think it's time to change the plugs,

[Seandenyer]

Doing my own 12000 mile service as I think £550 is a little to much just to change oil, plugs, filter etc so doing a proper job of changing everything , oils etc and not just checking them and topping up. Just done plugs and the old ones look like this.

[bluezeeland]

NGK 7' ?

[Seandenyer]

Yes, seems to run a little smoother, just with the plugs changed

[N7GTX]

Mine is on NGK B7ECS and runs very well.

[QBee]

My car is on NGK 6s. It is 12 months and 4500 miles since the last service and it is going in on Monday for its service.

I will pull a plug at random this morning and post a photo as a comparison. My car has run better on the 6s, so much so that my TVR specialist, having seen them on a number of cars, now fits them in preference to the 7s.

Back soon with a photo.

[CHIMV8]

QBee said:

My car is on NGK 6s. It is 12 months and 4500 miles since the last service and it is going in on Monday for its service.

I will pull a plug at random this morning and post a photo as a comparison. My car has run better on the 6s, so much so that my TVR specialist, having seen them on a number of cars, now fits them in preference to the 7s.

Back soon with a photo.

Is there a stamp mark on the plug to determine what number

[Seandenyer]

N7GTX said:

Mine is on NGK B7ECS and runs very well.

NGK B7ECS for me to, seems to run a lot smoother now changed

[Seandenyer]

N7GTX said:

Mine is on NGK B7ECS and runs very well.

NGK B7ECS for me to, seems to run a lot smoother now changed

[ChimpOnGas]

I can recommend NGK BPR6EIX iridium plugs.



This one is straight out of my engine and I can confirm after many thousands of miles these plugs work brilliantly... even though some people told me the tips would fall off and destroy my engine

Iridium plugs are more expensive to buy than NGK BPR6ES in the first place, but the extended service life is such they actually work out cheaper in the long run. Iridium plugs are used by all high end and performance car makers so are not a gimmick, NGK are the best spark plug manufacturer bar none and do not sell snake oil products using false claims of performance or economy gains.

My advice would be to avoid the highly inappropriate NGK B7ECS originally used by TVR, it's really an endurance racing plug so far from ideal for a road car, put simply it's too cold so tends to foul easily and the shrouded design also delivers poor combustion performance when compared with an extended electrode design (ES).

At the very least fit NGK BPR6ES which will be a big improvement for the same money as the B7ECS, and better still choose the longer lived NGK BPR6EIX iridium.

Hope this helps?

[QBee]

Yes, they are NGK BPR6EIX
The "R" means they are resistive.
The "I" means they are iridium, so more expensive but supposedly last several times. When I had a Lexus, the service interval for the iridium plugs was 60,000 miles
.
Pulled out the number 2 plug and here it is.



I have to be fair and say that the car has just come off a track day, but the last thing it did was idle for a bit while I was loading it back onto my trailer for the journey home.

[QBee]

I also have to say that it was Chimpongas who put me onto trying them in the first place - and there will be strict instructions NOT to change them at the service

[CHIMV8]

What sort of price should I be paying, and have you bought onine (Theres a set of flea bay for £54 with free delivery) or at a motor factor

I'm just going to replace mine to NGK BPR6EIX just for the sake of it

Edited by CHIMV8 on Saturday 12th March 10:23

Edited by CHIMV8 on Saturday 12th March 10:24

[QBee]

That's as good a price as I gave seen anywhere.
You will find the throttle seems just that bit more responsive on the 6s, and of course the car will continue running as if it had just been serviced, because the plugs will always be "as new".

[CHIMV8]

QBee said:

That's as good a price as I gave seen anywhere.
You will find the throttle seems just that bit more responsive on the 6s, and of course the car will continue running as if it had just been serviced, because the plugs will always be "as new".

Spec below, does they sound right

NGK BPR6EIX
6637

14MM THREAD
0.8MM GAP

[QBee]

CHIMV8 said:

QBee said:

That's as good a price as I gave seen anywhere.
You will find the throttle seems just that bit more responsive on the 6s, and of course the car will continue running as if it had just been serviced, because the plugs will always be "as new".

Spec below, does they sound right

NGK BPR6EIX
6637

14MM THREAD
0.8MM GAP

6637 is the correct number, so I guess the rest follows. Certainly was my 14mm plug spanner this morning, and I assume the gap is correct.

[CHIMV8]

QBee said:

CHIMV8 said:

QBee said:

That's as good a price as I gave seen anywhere.
You will find the throttle seems just that bit more responsive on the 6s, and of course the car will continue running as if it had just been serviced, because the plugs will always be "as new".

Spec below, does they sound right

NGK BPR6EIX
6637

14MM THREAD
0.8MM GAP

6637 is the correct number, so I guess the rest follows. Certainly was my 14mm plug spanner this morning, and I assume the gap is correct.

Cheers Anthony..... ordered....

[N7GTX]

ChimpOnGas said:

I can recommend NGK BPR6EIX iridium plugs.

My advice would be to avoid the highly inappropriate NGK B7ECS originally used by TVR, it's really an endurance racing plug so far from ideal for a road car, put simply it's too cold so tends to foul easily and the shrouded design also delivers poor combustion performance when compared with an extended electrode design

My engine is under warranty and performs really well on the B7ECS plugs. While the iridium plugs would probably last forever, if something went wrong then the following words might come into play - warranty/Powers/wrong spec plugs/invalidated/mahooosive repair bill/bank account zero/divorce.

[QBee]

N7GTX said:

ChimpOnGas said:

I can recommend NGK BPR6EIX iridium plugs.

My advice would be to avoid the highly inappropriate NGK B7ECS originally used by TVR, it's really an endurance racing plug so far from ideal for a road car, put simply it's too cold so tends to foul easily and the shrouded design also delivers poor combustion performance when compared with an extended electrode design

My engine is under warranty and performs really well on the B7ECS plugs. While the iridium plugs would probably last forever, if something went wrong then the following words might come into play - warranty/Powers/wrong spec plugs/invalidated/mahooosive repair bill/bank account zero/divorce.

Ask Powers.....
Dom is often on PH and might even read this

[Pupp]

The ECS plug has a more robust design and especially a stronger ground electrode so is more resistant to damage from detonation etc; that is a fact and likely the reason TVR specced it given the propensity for RV8s to ping when lent on.

If you're cold fouling 7s then you need to push the throttle pedal harder

[SILICONEKID345HP]

Ive not used those over priced race plugs for years ,they foul up quickly.Iuse what v8 Developments recommend

NGK BPR6 or 7 ES.Used on most RV8's

£15 for 8

Edited by SILICONEKID345HP on Saturday 12th March 17:08