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Need an opinion on Accell intake and Tubes Vs. a 2 gen Miniram
I run road courses ,for the time being Im stuck with a 3:07 gear I run mostly at Blackhawk, slow corners are around 45 mph .second gear is too short ,3rd lugs a bit
Im thinking of putting the Miniram on now ,worried I will lose too much low end
I run A7s and its a stick /light clutch
Last year I had the AM record for a short time with the current accell and 3:07
Will the Miniram turn it into a slug out of the corners ?
If I was only going to run road courses and was on long straights, I would go with the Mini Ram. For autox I like running the long tubes. I would suggest to get a 3.55 rear ratio if you plan to stay with the 17" tires or even 18".
If you setup the car specifically for BHF it may not be good at other tracks. Going from there to Road America is a huge difference. I left the 3.07 in mine as I feel it's good on a variety of tracks. I just drive the car at a higher RPM band so to stay in the power.
My MR combo drag racing on Hoosier wets pulls 1.76 60' and I don't notice a lack of low end TQ.
I have large tubes and an aftermarket base. I run out of power about 4800 rpm. It's great setup for torque but the back straight at Sebring needs horsepower. My maximum torque is at 3400 which is great for exiting corners.
I've been considering a Mini-Ram for the last decade now. I've just never pulled the trigger.
This was a popular conversion back in the day.
I'm just not sure how much it really helped the horsepower.
I have large tubes and an aftermarket base. I run out of power about 4800 rpm. It's great setup for torque but the back straight at Sebring needs horsepower. My maximum torque is at 3400 which is great for exiting corners.
I've been considering a Mini-Ram for the last decade now. I've just never pulled the trigger.
This was a popular conversion back in the day.
I'm just not sure how much it really helped the horsepower.
at the risk of starting an internet "torque v horsepower" war, I would always go with the short runner Miniram, get some more rpm and horsepower comes with it.
In my opinion low rpm and high torque are not your friend in a race car !
Before you "pull the trigger", what cam are you using? Stock or aftermarket? What RPM is peak torque, what RPM is peak HP? I take it that you have a 4+3 Doug Nash transmission with a 3.07 Dana 44. Is that correct? Just trying to determine how well your current setup fits the TPI setup and the 5200 RPM choke point.
Before your start thinking about swapping intakes and hoping that it solves your problem coming off the corners at Blackhawk, swap out the 3.07 for at least a 3.54 rear end ratio. Regardless of which cam you have, the higher gears will give you more flexibility to stay in the strongest portion of the cam's torque band. (You need torque to pull you out of the corners.)
In my experience, the mini-ram seems to respond best to heads that breathe and cams that allow you to spin the engine to at least 6,200+ RPM. Bottom line - the short runners aren't going to make the same low end torque of the TPI setup, but they will allow the engine to make power on the top end.
at the risk of starting an internet "torque v horsepower" war, I would always go with the short runner Miniram, get some more rpm and horsepower comes with it.
In my opinion low rpm and high torque are not your friend in a race car !
In one lap we leave a corner 7 times that adds up . But there are 3 places where some rpm and HP would help . I need to find a gear ...
Im hoping a less restricted intake will allow the engine to rev faster through the lower rpm range and get to the upper range to make some power .
I am not sure what your mods consist of, but if you want to rev(spool) up quicker, install 3 piece under drive pulley set, remove a/c, LT headers, and remove Cats and install free flow mufflers and it will rev up very quick👍
The best thing I did to improve the throttle response was to install an aluminum flywheel. That just changed the world. From 1500 to 3500 it became a different car.
It did a lot more than the cam change. Or, the head swap.
In one lap we leave a corner 7 times that adds up . But there are 3 places where some rpm and HP would help . I need to find a gear ...
my local hillclimb track has 6 corners to leave,
when i switched from a modified tpi (slp siamese runners etc) to a single plane intake the car went 1 second faster straight away with no other changes to the car.
my theory is that torque is only good for 2 things, spinning your wheels out of corners and towing your car to the track !
and I still have the 3.54's to replace the 3.07's, and I know that mod will allow the short runner intake to rev more, produce more hp and go faster.
The best thing I did to improve the throttle response was to install an aluminum flywheel. That just changed the world. From 1500 to 3500 it became a different car.
It did a lot more than the cam change. Or, the head swap.
I'll +1 this as I've done it to 3 cars already. It created traction issues on every single one, the difference is very dramatic and with zero consequence as 30# seems sufficient for a clutch package to maintain driveability vs 50# stock.
05-19-2016, 07:47 AM
Road race c4 long tube vs, miniram
