cam type auto vs manual
07-27-2018, 01:50 PM
#1
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cam type auto vs manual
When buying a cam do you have to factor in auto vs manual in the equation? I know you have to get a certain size stall to match the cam if its an auto. For instance I have a decent size cam in my lq9 but I change it from a auto with a yank 3000 stall to a t56 manual. Can i now run a different cam to net better results? Just curious so I dont leave any decent power on the table from not knowing.
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The_W (08-08-2018)
08-08-2018, 06:04 AM
#4
With a manual trans you can run large cams, but you will get more bucking and surging at parking lot speeds and stuff. Also, the power won't come in until later in the rpm range (just like with an auto). I didn't mind my relatively large cam in my ls1 6-speed Camaro, just have to kind of play with the clutch a little more at slow creeping speeds.
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The_W (08-08-2018)
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The_W (08-08-2018)
08-08-2018, 04:05 PM
#6
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Thanks for the replies. I have a mild cam in my opinion, so there is already bucking in first and I have to ride to clutch a little. The cam currently is a 225/230 .617/.612 112lsa with ls3 heads. My power is 400hp but my torque is 370 when I had a an auto in it, which if I were to change to something better I would want the torque up possibly. Pulls like a **** up high though.
08-08-2018, 06:58 PM
#7
what you also need to consider with having a stick is the diff ratio & tire height... especially with a t56 (vs the nv3500/4500).
did you get the MM6 or M12 gearing? their ratio spreads drive different differential gear recommendations in order to optimize your power band, bucking, clutch feathering, etc. most guys with the M12 (preferable in a truck) are good with 4.30s or 4.56s, where the MM6 gearing does better with 4.88 or 5.13.
shoot - if you feel like coming to abilene, i'm off this week & could let you drive mine. i just did a BTR 219/224 113°, and it bucked a bit at low speed with my 4.30s & 33" tires... and that's with the low-geared nv3500. my tuner did pull a bunch of timing below 1500rpm (like the stock LS1 car tune), and that eliminated a TON of it. that'd be something to ask your guy about, too.
did you get the MM6 or M12 gearing? their ratio spreads drive different differential gear recommendations in order to optimize your power band, bucking, clutch feathering, etc. most guys with the M12 (preferable in a truck) are good with 4.30s or 4.56s, where the MM6 gearing does better with 4.88 or 5.13.
shoot - if you feel like coming to abilene, i'm off this week & could let you drive mine. i just did a BTR 219/224 113°, and it bucked a bit at low speed with my 4.30s & 33" tires... and that's with the low-geared nv3500. my tuner did pull a bunch of timing below 1500rpm (like the stock LS1 car tune), and that eliminated a TON of it. that'd be something to ask your guy about, too.
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08-08-2018, 08:20 PM
#8
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I got a t56 from a 2005 gto. I already have 4.10’s and I bought them thinking they would be enough back last year. Haha Abilene is a small stretch for me but I will take your word for it. I guess I could have Pat G spec a cam,. Texas speed picked this one for me.
08-09-2018, 10:51 AM
#10
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Heck no I wouldnt think of going back to that small of a gear! Well best thing is probably hold off anything now until i decide defiantly what i want to do from here on out. Once you get a little power its an addiction and you always are wanting more like they say on here.
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