How?
Cause I don't want to OP waste a bunch of money to see little to no gains in the area he seems to be looking for? Or at least to do it with knowing the possible down sides.
I know what answer he was looking for :)
Really what kind of real world torque gains are we talking here ? No matter what type of header, especially in the idle-3000 rpm where we spend very little time at full throttle and torque at these rpm only translates to 12-59% hp per lbs-ft of torque...
The OP seems to want to run less duration then originally recommend, and I was just saying that generally gonna come with less lift.
I don't know if so called RV cams come with more lift for a given mild duration, Far as I understand it's generally used for slang for mild cams.
But generally at part throttle, unless your pushing the throttle over 1/2 - full to do normal driving around town your already making more idle-3000 rpm power then you use.
Idle to 2000/2500 rpm there's a few things to do to gain torque in this area but it's mainly displacement and cr, since those are somewhat fixed by the engine choice and fuel type. Your mainly trying not to lose here while trying to gain 2500-5000+ rpm range.
Head flow is the biggest cork on /6...
Going from 108 to 110 might lose you 5-10+ lbs-ft, it all steps in performance the further you stray the further the change in tq and hp. Duration should be easy to get a little less lift and lsa gonna cost a bit but is not gonna be crazy differences. See what what's available around those...
'73+ A, B, C, F, M, J-Body Slant 6 to 273/318 or 340/360
Schumacher Creative Services Inc. - Engine Swaps
'73+ A, B, C, F, M, J-Body Slant 6 to 273/318 or 340/360
3 reviews
Regular price$229.00
2.02 only has less velocity if the cfm is the same for both the 2.02 & 1.88, question is how much more flow does the 2.02 need to have same or better velocity than the 1.88 valve ?
Gross dyno trim hp and we have our engines in a car would be net hp, but people tend to talk in gross dyno trim hp with older performance engines. Like my engine on the dyno would have about 400 hp and that's what I would say it has but it's probably 30-40 hp less as installed in my car. It...
Which thermostat to go with a electric fan with 185/175 on/off temp sensor ?
Do you want it more than the 185 fan ON like 190 thermostat or same or even just under ?
I meant as in what's big enough to make 500 hp with your 290 cfm example.
To me 240-250 is average street strip size, was wondering if that be enough in this case.
I understand Top Fuel is totally different, but they have to open the exhaust valve vary late cause the pressure so high it would destroy the valvetrain if they tried to open it early. Not saying this is what's happening with alcohol but image there could be some effect the cam has to...