Compression Ignition Addict
Join Date: Oct 2008
Location: DFW Airport
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175/75's are difficult to tune for everyone, I know I've tried a lot of 'em.
As has been said in numerous posts about injectors, go with a consistent bump in injector body and nozzle to be able to tune correctly... I.E. 175/30 190/50 I believe.
It does you no good to have a nozzle bigger than body and try to tune around it.
Each truck is different as is each drivers sensitivity to driving scenario. I.E. what one guy feels is perfect is barely acceptable to another.
My hybrid w stg 2 wheel cannot clean up 175/75's with Viv or Eric's Tunes, Tony can clean it up but you can tell it's not near as strong. I'm not saying Tony couldn't tune it to match the #'s of the others but it would be as smokey as theirs too.
I"m waiting on a set of 175/30's with hopes it will feel just as strong since it will be tuned optimally and the Tq and Hp as well as MPG be perfect.
If it was me i'd search the forum for injectors and read the 90+ pages of info. and know what I wanted before making a decision you likely won't be happy with and will end up doing it all over again, again and again.
2005 CC SB 147K
MTW MaDmAx 68mm VGT
Warren Diesel 175/75's Super Spools N Drew's Tunes
ARP's - MBRP T-Back Kitty Del.
ICON 4.5" + 2" Spacer
Mickey T's Baja ATZ P3 37's
METHOD Racing Wheels 20x
ScanGauge II / RedHead Box
Snow Perf. Stg. II W/ Banks Intercooler
Bulletproof EGR Del. & External Filter
ELC Coolant & Sin. Coolant Filter
AMP Steps & ARE Cover W/ Bed Slide