Delta Cams D-9

[ahmk3]

Has anyone used this cam? I plan on using 3 hd8s , Header, Porting, Electronic Ign. Any thoughts or input ? Thanks, Steve

 

[Patrick67BJ8]

Has anyone used this cam? I plan on using 3 hd8s , Header, Porting, Electronic Ign. Any thoughts or input ? Thanks, Steve

I believe the UK Austin Healey Club has info on cams with various carb setups with results of what works well with what. A lot of work went into their article. Look under their Technical section.

 

[Jerry]

I have two cams ground by Delta. Both One step up from BJ8 specs but I don't know the product number. Can't tell the difference from a BJ8 cam.

Jerry

 

[dougie]

If you can give me the specifications on said cam, I might be able to offer a little more input. I run a fairly mild cam in my '57 100-6 MM vintage racer with triple 2" SU HD8s. It's still street legal, but is competitive in most production GT race grids in the US.

https:// DSC09702 by dougescriva, on Flickr

 

[Bob_Spidell]

OT, but I'm a little curious: what would make a Healey not street legal? I know some states have inspections, but in the Socialist Republic of California you can drive pretty much anything if you can get it registered (heck, some of our 'guests' from down south don't even bother with registration). Newer cars have to pass smog--and you can't tamper with that equipment--but Healeys are exempt because they're so awesome (well, that and they're too old to be affected--thanks Gov. Wilson!).

 

[ahmk3]

The box reads, Duration@.050 229 deg. Int. opens at 8 closes at 41 Ex opens at 41 closes at 8 Cam rise .295 L/C 108 deg Lash .018 Int& Ex Again, Thanks for the help. Steve

 

[ahmk3]

PS, Patrick67bjb, I also have a 67 Metallic golden beige/black Owned since 1986. Thats the one I am working on now. I couldn't find the info on the site you mentioned. Steve

 

[dougie]

OT, but I'm a little curious: what would make a Healey not street legal? I know some states have inspections, but in the Socialist Republic of California you can drive pretty much anything if you can get it registered (heck, some of our 'guests' from down south don't even bother with registration). Newer cars have to pass smog--and you can't tamper with that equipment--but Healeys are exempt because they're so awesome (well, that and they're too old to be affected--thanks Gov. Wilson!).

Bob -

My reference to still being street legal relates to my primary use of this BN4 as a vintage race car, on closed circuit road race tracks. My experience is that many Healeys get built or restored to period race specifications but never see time on a "real" race track under actual race conditions. The norm for a "modern" vintage race Healey or most other marques, is a stripped down shell of itself, no lights, interior panels, glass,etc. which would never be "legal" on the public roads in any state.

 

[Bob_Spidell]

Thanks, Dougie.

 

[dougie]

The box reads, Duration@.050 229 deg. Int. opens at 8 closes at 41 Ex opens at 41 closes at 8 Cam rise .295 L/C 108 deg Lash .018 Int& Ex Again, Thanks for the help. Steve

This cam is similar to what I currently run. Two engine builds ago, when I had forged flat top pistons, 9:1 compression, 1.50:1 rockers, triple SU HD8s, I dyno'ed at 200 hp @ 5600 rpm and 208 ft lbs torque @ 4075 rpm.

I suggest finding a good speed shop to dyno you car when completed to maximize your performance tuning. A lighten flywheel would also be a wise addition, even if your just building a "hot rod" Healey.

 

[Patrick67BJ8]

PS, Patrick67bjb, I also have a 67 Metallic golden beige/black Owned since 1986. Thats the one I am working on now. I couldn't find the info on the site you mentioned. Steve

I can't locate it either but it's been a while since I saw it. It does exist and has details for what cams with what carb setups, needles, springs, etc. I'll keep looking.

My Healey is an original Beige with Red interior and undergoing a framup restoration. Waiting on the Body shop to finsh their work. Was supposed to take 6 to 8 weeks and car went into the shop mid August. After doing a number of special tuning with Healeys back in the mid to late '70's, I found that a properly tuned Healey, balanced engine, etc. was the best way to go unless you're always putting your foot in it. Back then a new VW Rabbit gave a big Healey a run for their money. My HD8's have been "restored" which is better than rebuilt. Reground cam, BJ8 specs, balanced engine, rebuilt distributor from Advanced Distributor, Pertronix, Toyota 5-speed for better spaced gearing. It is not a race car but it will run very good.