77 cruiser
Jan 25th, 05, 1:24 PM
How would this cam be on the street? Maybe on 110 intsead of 108? I'm looking to extend my HP range by a few hundred RPM, or should I be looking elsewhere. dynos 15&17 (http://webpages.charter.net/77cruiser/pull%2015%20&%2017.jpg)
dyno 15 (http://webpages.charter.net/77cruiser/pull%2015.jpg)
dyno 17 (http://webpages.charter.net/77cruiser/pull%2017.jpg)
Cuurent cam is Clay Smith
292 adv.
240 @ .05
.485 lift
108 lsa
103 ILC
9.7 - 1
AFR 190 heads
RPM with Qjet
1.625 headers thru 2.5 ex.
The 23 hp diff from 15 to 17 is with the conv. locked on pull 17.
77 cruiser
Jan 28th, 05, 1:00 PM
Once more I'll even. smile.gif
UDHarold
Jan 29th, 05, 12:31 PM
Jim,
Sorry about having been away for a while......
I have no experience with the 401A1LUN for long-term street use. As far as racing is concerned, it gives years of good valve train life. This has been more a case of me NOT trying the Super NFs in street cars, and same with the NFs. I have some fool-hardy customers who run nothing but NFs/Super NFs in their street cars, and those of their customers.
As far as power and torque is concerned, the 401A1LUN makes great torque and HP from 2500(or a little lower) to over 7000, with peak power being around 6200-6400. In very conservative HP terms it should make about 440 BHP+/-10 in your setup. On more liberal dynos, add 50-60 BHP.
It likes 130-140 lbs on the seat, about 330-340 lbs open, 1.6s are OK on the intake, and it needs 1/2" #8 fuel line and a high-volume mech fuel pump.
It should increase power across the RPM-band vs your Old-School cam......
UDHarold
77 cruiser
Jan 30th, 05, 12:22 AM
Thanks Harold,
Are you saying the ramps might be a little harsh for durability on the street? What else might you reccomend? I'd like to keep the HP peak @ about 55-5700. At the RPM I'm looking at I'd assume a Hyd. roller would fit pretty well too??