Matt Mayberry

I have a chance to buy a Howard's ASA cam, and was wondering how it performed with 1.8 rockers. My current cam has 223/230 duration, 113 lsa .610/.613 lift on xfi lobes, and I think it will be brutal on valve springs. I don't want to worry about high rpm shifts and if my valve springs will last long. They are Pac 1218,s. I know it has been posted on here before, but I was curious about any recent info.

A.R. Shale Targa

iTrader: (2)

The Howard's cam is a nice piece but the 1.8 ratio rocker does magnify the lobe intensity as far as what the valve spring sees. Would ultimately be similar to what you have now

Darth_V8r

iTrader: (4)

Funny how your signature and warning in the post are oddly discordant with each other...

Matt Mayberry

That is what I was concerned about.... But I bet it would make more power.... Decisions, decisions.....

the404man

Iv noticed the horwards Hotcam, ASA cam and others say advanced lobe design for increased performance.. iv often wondered what this meant, always thought perhaps it meant, the lobe lift has a greater ramp rate than the original GMPP design and is one of the reason i haven't gotten one, i mean the price is awesome iv totally been wanting the ASA cam

Matt Mayberry

I am curious as well about how much they make over the old design.

mgood613

iTrader: (1)

I run the Howards ASA cam with SLP 1.85 rockers, with PAC 1211x springs with Brian Tooley hardened pushrods.
The cam lobes have an aggressive ramp rate to them.
I spin mine to 6800 and haven't had any issues.

I'm now spraying a 200 shot on it and it loves that as well.

the404man

Awwww man, do you have a video of your car.. i would totally like to hear how it sounds got youtube ?

Also so this aggressive ramp rate is like what, i read people saying XFI, EPS, LSR, XR and what not, would you happen to know what howards asa cam lobes are ?

Thanks and peace

mgood613

iTrader: (1)

I don't know what the ramps are comparable to.

the404man

Haha dude sweet man Oh hey can i ask ya, are you running SD or MAF and if SD is it SD enhanced, reason i ask is, your still able to monitor misfires right, if so well, did you have to modify your misfire count tables? as im running a hotcam and so for in two different engines, it causes idle and low rpm misfires.. and of course since the ASA cam is basically the same as the hotcam... thought id ask

Edit: ha nvm i see your maf, so yeah did ya have any misfire problems with this cam and have to mod your misfire count tables ?

mgood613

iTrader: (1)

Thanks

Maf, don't know on the misfire count. I had someone else tune it.
I can still monitor misfires.

Matt Mayberry

Those are awesome videos!!!

A.R. Shale Targa

iTrader: (2)

In another thread I was also trying to convince someone to use dual springs on a 1.85 ratio low lobe lift application and then Mamo decided to take my sentence and run it directly into the innuendo gutter. Hilarious really that such a pro as himself would bust that out so I asked his permission for my sig. For no other reason than the humor really

kinglt-1

iTrader: (26)

I am guessing the Howard's lobe even with 1.85 rockers is not super aggressive. I am running a XE lobe with SLP 1.85's and the lobe intensity goes from 53 to 51. XER is 49 fwiw.

If somebody has a Howard's ASA cam card I could figure it out.

Darth_V8r

iTrader: (4)

I remember that thread, too. I just got a kick out of the odd irony there is all.

mgood613

iTrader: (1)

I want to say when i figured it out it was 49

Matt Mayberry

Here is a copy of the cam card.

Matt Mayberry

Ha ha... Simultaneous post. .

the404man

Ok so i have the Ls hotcam cam card but it doesn't have all that info the howards cam card does.. do you need all that info like intake open, TDC overlap, exhaust close, intake close, exhaust open to find out ramp rate or lobe intensity and if you will please what numbers are need to do the math or what would i call it, if i were to do a search to find out how its done ?

Thanks and peace

kinglt-1

iTrader: (26)

you subtract the .050 duration from the .000 duration and that gives you the lobe intensity. the howards ASA cam looks to have a lobe intensity of 48 with 1.7 rockers which is really aggressive.