Ive heard the bosch platinum sucks and thats why my car ran poorly. I was wondering if anyone else has the same problem and what kind of new plugs should i get?

------------------
1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft

FOR SALE! Email me for further info.

 

AC/Delco Rapid Fire plugs are the best ones on the market for our, or any GM cars. I have been running them ever since I bought my car, and it can't run better! A full set costs around $25 from Napa.

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

What Bosch plugs are you running? Are they the platinums with the 4 electrodes($6 a plug) or the platiums with the single electrode($2 a plug)? The ones with the 4 electrodes are bad for performance because the extra 3 electrodes shroud the spark from the intake charge. The ones with the single electrode are better but not as great as the stock ACDelco plug. I run the Bosch platinums with the single electrode because they are the shortest(length wise) readily available plug out there. The shorter plug helps to prevent mealting the plug wire boots and makes plug changes a bit easier. Before I go to the track I think I am going to put in a set of regular ACDelcos.

 

STOCK plugs have be proven the give better performance then all the "High Performance/High Tech" ones. Just go back to stock and gap everything right. And make sure you put that dielectric greas stuff on it, makes the boots comes off soooo much easier next time.

 

ac delco, definately the way to go...

 

NGK

 

**** im running the bosch +4 but probably will goto bosch platinum because they are short plugs and with my headers i dont think ill be able to get them off...

------------------
1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft (w/o headers and catback)

14.426 @ 96.19mph w/2.167 60ft(w/headers and catback)

 

 

AC/Delco Rapid Fire