it won't stay in if was you buddy & get rid of that stock muffler & get a true dual 
Slow 402
Slow 402 WTF? 402 et245 12.0:1 257/267 90/90 kooks 1 7/8 w catted y stock ws6 muffler A4 3200 12 bolt 4.10 ET streets sfc lca umi adj TA 477rwhp/481rtrq with 1.77 60' 7.58 1/8 at 92, Should it not be faster? DA is at around 4500-5000 here.Dissapointed to say the least.
I would say yes you should be faster....even with that DA. Although your 60's wasn't very good either. Even your dyno numbers seem low but the stock exhaust could be holding alot back on that motor.
Teching In
Joined: May 2006
Posts: 36
Likes: 0
From: Colorado
Cats and stock muffler???? You can not eat like an elephant and **** like a bird.
Motors are air pumps, more hp more air. You DA does not help, I live in Denver 7500 is good air for us, I know how it can hurt, but do not let it be an excuse. Run a little more gear and a lot looser converter than most and the air will not be such of an issue. escpecially since you have the cubes with decent compression.
Motors are air pumps, more hp more air. You DA does not help, I live in Denver 7500 is good air for us, I know how it can hurt, but do not let it be an excuse. Run a little more gear and a lot looser converter than most and the air will not be such of an issue. escpecially since you have the cubes with decent compression.
It is the kooks metallic catted y and I know the ws6 muffler and and stock I pipe are a restriction, just didnt think it would be that much. Planning on a 4" I-pipe with a 4" cut-out where it goes over axle. As far as the converter, I didnt want one to loose because I plan to spray 200-250 and didnt want to worry about spaying through the converter. Bad95, yes the tranny is built... as good as an a4 can be. Anyone have more thoughts. I was looking for at least 1.5x and 6.xx NA.Thanks.
Trending Topics
Originally Posted by crb99ws6
WTF? 402 et245 12.0:1 257/267 90/90 kooks 1 7/8 w catted y stock ws6 muffler A4 3200 12 bolt 4.10 ET streets sfc lca umi adj TA 477rwhp/481rtrq with 1.77 60' 7.58 1/8 at 92, Should it not be faster? DA is at around 4500-5000 here.Dissapointed to say the least.
Do you have qa1's on the car?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Staging Lane
Joined: Mar 2005
Posts: 57
Likes: 0
From: midland, tx
ouch...7.5x. you definately need exhaust, bump it up to at least a 3800 n2o stall and you wont have to worry about the spray. odds are, you wont see a 6 in abilene on motor, but on juice...yes. my guess is with a better stall you can hit a 7.2. hp numbers seem a little low.
Im gonna say that your et is just plain shitty. Not to cut on your car because you have alot better setup than me.
I think your car will run very low 7's on motor and possibly high 6's with the right converter and open exhaust
I think your car will run very low 7's on motor and possibly high 6's with the right converter and open exhaust
I'm building a similar motor, and a LM is what I am runing for a catback thru it. I think your converter is way too tight, I have a converter that should stall at about 5500 on a 250 hit of nitrous out of the hole, and about 4200 or so on motor... and I think on motor it's probably gona be a little tight for max track performance.
A cutout at the end of the Y would help alot, a much looser conveter,and get some traction.... you're leaving .2 on the table from the first 60 feet at least You should be cutting in the mid to low 1.5's with a good suspension setup and good hook. Get that 60 foot time into the low 1.5's or better on motor like it should and I'd say a 6.8 would be an achievable goal, and the mph will definately come up with it, I wouldn't be surprised to see that car go 98+ in the 1/8th once it's done.
Shocks, and suspension tuning, a cutout and a looser converter are all that are holding tha car back from being capable of running well into the 10's on motor in the 1/4 that I am sure of.
A cutout at the end of the Y would help alot, a much looser conveter,and get some traction.... you're leaving .2 on the table from the first 60 feet at least You should be cutting in the mid to low 1.5's with a good suspension setup and good hook. Get that 60 foot time into the low 1.5's or better on motor like it should and I'd say a 6.8 would be an achievable goal, and the mph will definately come up with it, I wouldn't be surprised to see that car go 98+ in the 1/8th once it's done.
Shocks, and suspension tuning, a cutout and a looser converter are all that are holding tha car back from being capable of running well into the 10's on motor in the 1/4 that I am sure of.
Originally Posted by crb99ws6
WTF? 402 et245 12.0:1 257/267 90/90 kooks 1 7/8 w catted y stock ws6 muffler A4 3200 12 bolt 4.10 ET streets sfc lca umi adj TA 477rwhp/481rtrq with 1.77 60' 7.58 1/8 at 92, Should it not be faster? DA is at around 4500-5000 here.Dissapointed to say the least.
what is your intake setup? if you dont have a 90/90 i'd look into that first along with a better exhaust.... if it were me i'd bring that camshaft down to a 232/240 duration... but thats just me... i like a smaller duration to help on the bottom end and let the spray carry you on the top end... or vice versa which by the looks of it that cam should act nicely with a 200 shot off the line... that will help your 60ft
60's were 1.69, 1.72. I'm thinking new stall (Or hit it with 250 hehe . But that will be later trying for 6's NA) and maybe some Bogarts
. But that will be later trying for 6's NA) and maybe some Bogarts Last edited by crb99ws6; Aug 14, 2006 at 04:56 PM.