leespiro 9 Posted September 14, 2013 Report Share Posted September 14, 2013 hi recently got my vr6 supercharged with a rotrex c30 94 1 bar boost i got the car mapped up from stealth racing and vince said i need colder plug so he put the bosch FR7KPP33+ but now theres a misfire between idle and 1200rpm so i put my standard ngk's back in and the misfires gone do i need to gap the bosch plugs or change to Ngk bkr7e which my mate told me to put in Link to post Share on other sites
VIW28 29 Posted September 14, 2013 Report Share Posted September 14, 2013 Fire in a set of NGK BKR7E's and gap them to 0.022", have always used these plugs at that gap in all the setups I've owned and worked on and has proved to be the most reliable Link to post Share on other sites
leespiro 9 Posted September 14, 2013 Author Report Share Posted September 14, 2013 hi thanks for that what if i try the bosch plugs set to that gap Link to post Share on other sites
michael5556 247 Posted September 14, 2013 Report Share Posted September 14, 2013 I use the same plugs as above. Ngk bkr7e but gapped too 0.025" just too be different Link to post Share on other sites
craggsy 91 Posted September 14, 2013 Report Share Posted September 14, 2013 I also used the bkr7e plugs in my rotrex'd VR Link to post Share on other sites
VIW28 29 Posted September 15, 2013 Report Share Posted September 15, 2013 Buy a set of NGK's they're only approx £2 each Link to post Share on other sites
Lukey. 381 Posted September 15, 2013 Report Share Posted September 15, 2013 Mistersolutions is a good place for them Link to post Share on other sites
leespiro 9 Posted September 15, 2013 Author Report Share Posted September 15, 2013 hi are these the right oneshttp://www.ebay.co.uk/itm/6x-NGK-Copper-Core-Spark-Plug-BKR7E-6097-/230793981439?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item35bc64adff Link to post Share on other sites
VIW28 29 Posted September 15, 2013 Report Share Posted September 15, 2013 That's the ones buddy. You got feeler gauges ok too? Link to post Share on other sites
leespiro 9 Posted September 15, 2013 Author Report Share Posted September 15, 2013 yes got feeler gauge but i was told not to mess with the gap Link to post Share on other sites
VIW28 29 Posted September 16, 2013 Report Share Posted September 16, 2013 You will definitely need to gap these as described above. Link to post Share on other sites
Recommended Posts