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im looking into further modifying my 3.4liter firebird and i heard that changing the pulleys helps increasing horsepower, so i figured id ask if neone that has done it thought there was a significant difference from putting on the underdrive pulleys? if so would you say its worth buying?
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You'll see around a 2-4rwhp gain from them on a V6. Its nothing amazing or IMO worthwhile.2002 5-spd NBM Camaro
Details: www.1lev6.com -
with that lil gain it aint really worth the time or money then, havin to buy a higher amp alternator and the pulley set then the time to install them isnt worth a 2-4rwhp..........id like to hear more opinions about the pulley performanceComment
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Has anyone actually dynoed these on a 3.8 fbody? It seems like people just guess what gains we would get.Longtubes, true duals, ram air, caspers tps tec, ls1 26lb injectors, supersix powerpack, heads milled .020, comp cam .507 220/224 114 ls, forged internals and chromeoly pushrods, bored .030 over, tb spacer, tranny built with stiffer springs and kevlar bands, bigger servo, transgo stage 3 shift kit, edge 3600 stall, 1 pc aluminum ds, 3.73 superior gears, lsd rear ,custom pcm tuning, walbro 255 in tank,Comment
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<blockquote>quote:</font><hr>Originally posted by SLOWBRAEATER:
Has anyone actually dynoed these on a 3.8 fbody? It seems like people just guess what gains we would get.<hr></blockquote>
They do not make the Underdrive pulleys for the 3.8 ..they only make them for the 3.4.
If anyone disagrees with this, then please provide a website showing that it's for the 3.8 too. Because it's not! [img]smile.gif[/img]94 Camaro 3.4 A4 <br />T-Tops<br />In the process of an LS1 swap.Comment
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I've heard ZZ Performance has them but you know what...I could care less.Comment
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arent they pullies for the 3.8 already underdrove? lol.96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view¤t=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>Comment
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<blockquote>quote:</font><hr>Originally posted by Dominic:
You'll see around a 2-4rwhp gain from them on a V6. Its nothing amazing or IMO worthwhile.<hr></blockquote>
In other words it won't put us into the LS1 territory, right? ;)1998 3.8 Camaro A4, <br />B&B Triflow CatBack,Whisper Lid, <br />1987 s10 Blazer 350 V8 shift kit,Comment
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ZZPerformance Carries an underdrive waterpump pulley and several alternator pulleys for the 3800-II.
Their waterpump pulleyon a Grand Prix GT L36 put down +4whp over stock (approx 5hp at flywheel).
I think they also have a lightweight stock sized pulley too.
http://www.zzperformance.com/zzp/pro...ent_pulley.htm
http://www.zzperformance.com/zzp/pro...ive_pulley.htm
[ June 25, 2003: Message edited by: Dominic ]</p>2002 5-spd NBM Camaro
Details: www.1lev6.comComment
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