Thread: 3.0" Pulley - Bigger Injectors Necessary?

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  1. #1 3.0" Pulley - Bigger Injectors Necessary? 
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    Hey guys, Ive read conflicting articles about upgrading your injectors for a 3.0" pulley. Some say its necessary, others say you can get away with stock depending on the tune.

    Just wondering if anyone has any experience with it.

    Cheers
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  2. #2 Re: 3.0" Pulley - Bigger Injectors Necessary? 
    GT Level Member mguzzo's Avatar
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    You will likely go static on stock injectors at WOT on a 3.0 pulley. Upgrade to 42.5#, retune IFR and tweak the MAF table to stabilize the trims.
    --
    "Silver Bullet" 98 GTP Coupe: Stock, rust free, and broadsided.
    Old '98 GTP Coupe: VS Cam, 3.0, S2IC, 42.5#, TOGs, N*/LQ4, Corsa. it once ran a 13 flat
    Older '98 GTP Sedan: Pullied, rockered, SSIC, etc. Stock 14.33 @ 96.5 / PB: 13.89 @ 101
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  3. #3 Re: 3.0" Pulley - Bigger Injectors Necessary? 
    Killa Bee Scottydoggs's Avatar
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    will need 42's at min. but as long as your buying em, get 60's i maxed out 42's on a 3.0 gen 5 with a fsic.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: 3.0" Pulley - Bigger Injectors Necessary? 
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    Thanks for the input guys. I found a set of 42s for $200. Seems like a pretty good deal. Figured I try those out. The cars in storage until spring so if a set of 60s come up over the winter at a decent price I'll switch em out.

    Guess I'll pull the trigger on them. You guys rock
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  5. #5 Re: 3.0" Pulley - Bigger Injectors Necessary? 
    GXP Level Member GTPpower's Avatar
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    I ran stock injectors on a 3.0 for quite a while without problems. If you have the money, I'd get bigger injectors though.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  6. #6 Re: 3.0" Pulley - Bigger Injectors Necessary? 
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    I pulled the trigger on the injectors. For $200 I figured why not.

    My goal was to run a 3.2" and call it quits but then a guy reached out after almost a year and said he had a 3.0" that he didn't need.

    So now it's just a waiting game to replace the tranny lol
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