correct plugs

poizen · Post by **poizen** » Fri Oct 17, 2008 10:34 am

hey guys i got sparkys today as i fear mine breaking down at high rpm i got bkr6ek plugs which the ngk book says for a ca18det but gap is 0.9
and the got another listing bcpr6es11 which is a 1.1 gab what plug is the better plug pls help asap

rat · Post by **rat** » Fri Oct 17, 2008 10:54 am

bcp6es 0.8gap is what i use

poizen · Post by **poizen** » Fri Oct 17, 2008 11:20 am

0.8 isnt that bit small i was told these cars are fussy with what plugs the run on but why you run 0.8 any reason

Pinkfluffybunnys · Post by **Pinkfluffybunnys** » Fri Oct 17, 2008 11:22 am

This has been covered a Million times

rat · Post by **rat** » Fri Oct 17, 2008 11:23 am

the plugs come with that and have always worked fine, and i have been told more boost needs a smaller plug gap, don't know how true that is

Gary57 · Post by **Gary57** » Fri Oct 17, 2008 11:32 am

SEARCH

poizen · Post by **poizen** » Fri Oct 17, 2008 11:37 am

Gary57 wrote:SEARCH

i smsd you gary you cant even reply all i wanna know is which plug number is better i was in a rush coz was at the shop so no time to do a search dont know why peolpe must be stubborn when it would of taken less than 5min to help just to type either

bcpr6es11 or bkr6ek

rat · Post by **rat** » Fri Oct 17, 2008 11:42 am

bcpr6es

poizen · Post by **poizen** » Fri Oct 17, 2008 11:44 am

thanks rat will go back and change plugs now

Pinkfluffybunnys · Post by **Pinkfluffybunnys** » Fri Oct 17, 2008 11:44 am

OK Let me add some info, It true its common practice to have a smaller spark plug gap when modifying the reasoning behind this concept it that air has a resistance now if you pack almost double the amount of air into a cylinder the resistance will increase so more energy in need to jump the gap between the electrode.

But now before everyone streams out to go lower there spark plug gaps there is a down side to this, Because you have decreased you spark-plug gap you have in essence fiddled with you timing and you efficiency less Air/fuel mixture is exposed to the spark so less is ignited the flame front doesn’t mover as smoothly and this can also result is spark squelch and at 5000Rpm when a cylinder is traveling 53 revolutions a second this added up and can account to a decrease in performance for you motor this is normal felt off boost.

I remember pulling plugs on a buddies SR and being amazed at how small the spark-plug gap was after we increased the gap, I was told the car felt more lively and eager to Rev

Pinkfluffybunnys · Post by **Pinkfluffybunnys** » Fri Oct 17, 2008 11:46 am

smsd you gary you cant even reply all i wanna know is which plug number is better i was in a rush coz was at the shop so no time to do a search dont know why peolpe must be stubborn when it would of taken less than 5min to help just to type either

bcpr6es11 or bkr6ek

Get the info before you go to the shops then people will not be rude when you post a question that’s been answered a million times

rat · Post by **rat** » Fri Oct 17, 2008 11:46 am

alright that makes sence. thanks for that info

next time i change plugs i will try the stock gap

EightySix · Post by **EightySix** » Fri Oct 17, 2008 11:47 am

BCPR6ES-11 os the factory plug and what I run

poizen · Post by **poizen** » Fri Oct 17, 2008 11:47 am

Pinkfluffybunnys wrote:OK Let me add some info, It true its common practice to have a smaller spark plug gap when modifying the reasoning behind this concept it that air has a resistance now if you pack almost double the amount of air into a cylinder the resistance will increase so more energy in need to jump the gap between the electrode.

But now before everyone streams out to go lower there spark plug gaps there is a down side to this, Because you have decreased you spark-plug gap you have in essence fiddled with you timing and you efficiency less Air/fuel mixture is exposed to the spark so less is ignited the flame front doesn’t mover as smoothly and this can also result is spark squelch and at 5000Rpm when a cylinder is traveling 53 revolutions a second this added up and can account to a decrease in performance for you motor this is normal felt off boost.

I remember pulling plugs on a buddies SR and being amazed at how small the spark-plug gap was after we increased the gap, I was told the car felt more lively and eager to Rev

thanks pfb good to know i think ill run std oem plugs i havnt had a prob with them just think one is breaking down

Sokar · Post by **Sokar** » Fri Oct 17, 2008 11:50 am

poizen wrote:
Gary57 wrote:SEARCH
i smsd you gary you cant even reply all i wanna know is which plug number is better i was in a rush coz was at the shop so no time to do a search dont know why peolpe must be stubborn when it would of taken less than 5min to help just to type either

bcpr6es11 or bkr6ek

Dude, I'm really starting to dislike you... Thanks for blaming us for not giving you the awesome answers you were looking for in the short amount of time required...

Why didnt you check what plugs you need BEFORE you went to the shop? its basic stuff

Having a look at all your recent posts:

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You seem to have a nack for not using the search function and expecting others to just give you the answers you want, when you dont hear the answers you want you argue and make it as if we arent playing on the all mighty team SX to sort you out. Hows your mind?