2v vs. 4v
11-18-2009, 11:03 PM
#1
2v vs. 4v
2v's are not bad motors at all. I dont know why people look down on the 2v's. They are good motors and they make more torque usually than 3/4v motors. They respond very well to boost and such. I mean for the same relative flow numbers in heads, you can make the same power and probably more torque. And i mean of course you can port 4v heads and make tons of power, but 4v port jobs are expensive as hell!!! So are 3v's. So for money, boosting a 2v is probably the best bet. I mean look at the guy on SVTP running the 2.8 MPH Kenne Bell kit making 723rwhp. Thats around what they are getting from cobras with twin screws. So i think im gonna be staying with 2v's for a while.
11-18-2009, 11:12 PM
#2
3rd Gear Member
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2v's are not bad motors at all. I dont know why people look down on the 2v's. They are good motors and they make more torque usually than 3/4v motors. They respond very well to boost and such. I mean for the same relative flow numbers in heads, you can make the same power and probably more torque. And i mean of course you can port 4v heads and make tons of power, but 4v port jobs are expensive as hell!!! So are 3v's. So for money, boosting a 2v is probably the best bet. I mean look at the guy on SVTP running the 2.8 MPH Kenne Bell kit making 723rwhp. Thats around what they are getting from cobras with twin screws. So i think im gonna be staying with 2v's for a while.
I am keeping mine simply for the shock factor, and the trying something new and different, plus, I love the freaking logan intake on it...
4v>3v>2v
I will admit though the 3v motors really seem to be getting it done... In most milder applications i think 3v is the best way to go... But in the more extreme setups, you just cant beat the flow and capability of a 4v motor, esspecially when you are talkin about bigger displacement ones.
11-18-2009, 11:21 PM
#3
I mean no doubt if i were to build a race car i would be doing a 4v, but for the street, a 2v does just fine. I like the 2v more than others for some reason. Just a natural inclination to root for the underdog i guess. But it does just fine for its nature of crappy heads and stuff.
Last edited by teej281; 11-18-2009 at 11:23 PM.
11-18-2009, 11:30 PM
#4
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If you are dead set on keeping a 2v car... cams and boost are a must....
a built bottom end is a plus... this is an easy way to 450ish stock motor, or 600ish on something a little more built...
Keep it simple...
a built bottom end is a plus... this is an easy way to 450ish stock motor, or 600ish on something a little more built...
Keep it simple...
11-19-2009, 10:16 AM
#5
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Join Date: Jan 2007
Location: MI
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I mean no doubt if i were to build a race car i would be doing a 4v, but for the street, a 2v does just fine. I like the 2v more than others for some reason. Just a natural inclination to root for the underdog i guess. But it does just fine for its nature of crappy heads and stuff.
11-19-2009, 10:22 AM
#6
Built motor with 10:1 compression, Trick Flow heads cleaned up by fox lake, CMS custom turbo cams, hellion/on3 turbo kit with ball bearing upgrade, fuel upgrades necessary, PMP750 t3650/Magnum T56, built rear, yadda yadda yadda. Hows that sound for a 2v??? Not to shabby huh??? Maybe even mix that up with lower compression and an MPH 2.8 Kenne Bell with their blower cams or something. Who knows...not I 
All i know is i want a nice amount of power. How much power you putting down blackonblack??? Specs on your car if you dont mind me asking???
All i know is i want a nice amount of power. How much power you putting down blackonblack??? Specs on your car if you dont mind me asking???
11-19-2009, 03:29 PM
#7
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Some of this depends on your preferences, I like reliability and ease... I would take aftermarket 2v heads over stock 4v heads anyday of the week. However, intake flow isn't everything, esp. for those of you dreaming of turbo motors. You want the exhaust flow to be within 70% of the intake flow. 60% would be the lowest I would go, and only on a head that was flowing in excess of 400cfm. However I would say that 65% should be your minimally acceptable level. But also remember that different machine can puff numbers and all tests should be done at 28" of h20 there are also other things to look for.
11-19-2009, 03:30 PM
#8
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Built motor with 10:1 compression, Trick Flow heads cleaned up by fox lake, CMS custom turbo cams, hellion/on3 turbo kit with ball bearing upgrade, fuel upgrades necessary, PMP750 t3650/Magnum T56, built rear, yadda yadda yadda. Hows that sound for a 2v??? Not to shabby huh??? Maybe even mix that up with lower compression and an MPH 2.8 Kenne Bell with their blower cams or something. Who knows...not I All i know is i want a nice amount of power. How much power you putting down blackonblack??? Specs on your car if you dont mind me asking???
All i know is i want a nice amount of power. How much power you putting down blackonblack??? Specs on your car if you dont mind me asking???
11-19-2009, 04:40 PM
#9
Not compound boost...one OR the other. If i did the blower, id be doing low compression shortblock. Turbo would be with higher compression.
