TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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what plugs are you L98 guys having the best luck with?
Right now I'm running NGK TR-55's, that I installed after the mild rebuild. The car is nothing special, just a .030 over L98 with cleaned up heads, and the hotcam kit, along with SLP headers, ORY, and Mufflex 3-1/2" exh.. It's still got the full, stock TPI intake, but I also have a +few+ o+ther bolt-ons.
Should I stick with the TR-55's, or do you guys like a different plug in these motors? Oh yeah, it's a 91' Z.
I also use the ac delco plugs.Ive tried the "gimmick"plugs and never noticed a difference.Oh,wait a minute,yes i did!My wallet was a good bit lighter
__________________ 1985 MR2 mint condition 60,000 original miles,98 lexus GS400(mine),99 lexus GS400 (hers)1990 ASC/mclaren turbo grand prix,2003 bonneville SSEi stock for now
I've heard countless problems with AC rapidfires and the +4's. That's not to say some of you aren't using them successfully, but too many have had problems for me to even try.
im running the A/C delco cr45, they have been in there sence i put the motor in the car back in 2000, they have somewhere around 70 - 80 thousand miles on them & still going, although i do have a new set in the top of my tool box that i plan on putting in,... some day.
Originally posted by 91Z28-350 I use good old AC Delco R45TS
Another vote here.
Laters,
Conrad
__________________ 1987 GTA 5.7, W/88 formy 350 and trans-hedman hedders and y-pipe,cat delete,dynomax catback,airfoil,k@n filter,afpr,A/C delete,smog delete,2400 stall,corvette servo and .5 boost vavle,TB bi-pass,tpi free mods,wonderbar,stb,kyb's all around,rest of the normal stuff.
15.967@83.63(~5800ft~)
1967 firebird 400(lots of goodies)
1992 vert. SOLD
Cool - Maybe I'll see you at some Cruise nights over the summer. I always try to hit the big one in Lockport on Tuesday nights. I'ts a little bit of a haul but they have the most cars I've seen at a cruise night around here.
Originally posted by jackballs529 Cool - Maybe I'll see you at some Cruise nights over the summer. I always try to hit the big one in Lockport on Tuesday nights. I'ts a little bit of a haul but they have the most cars I've seen at a cruise night around here.
Yeap, I tend to find my way to those too
__________________ 1988 IROC-Z / 2007 R6 (Full exhaust | PCV | Flush Mounts |Tinted Windscreen | Fender Eliminator | Frame Sliders)
L98 with a little AFR, and a bit of comp cam (316 rwhp). - [Idle Clip]
Delco R43TS... and yes, because of nitrous. I ran some brand of platinums once a long time ago (before the nitrous), they totally screwed up the idle and the car ran like crap.
Originally posted by Synapsis I ran some brand of platinums once a long time ago (before the nitrous), they totally screwed up the idle and the car ran like crap.
