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aftermarket camshafts
#1

I've been searching for aftermarket cams and coming up short.  I don't want to use a reduced based circle cam, just due to the extra cost involved with all of the other components.  I found some options for NA, but nothing really for turbo.  I also found some solid lifter options, but not wanting to go that route for the same reason as reduced base circle cam.

This is what I've found so far...

Lunati - sent in a request for custom cam, haven't heard back
Crower - they made a suggestion for custom cam, called to order and they don't have any blanks
Cam Motion - seems to only make V8 applications
Bo - Reduced base circle cams
Esslinger - solid roller, if you can find one
Race Engineering - seems to be only NA options

Is Bo's reduced base circle cams our only option at this point, or does anyone have any other suggestions?
Early 85 SVO
Keedysville, MD
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#2

Have a look at these Camcraft cams: https://www.camcraftcams.com/catalogs-li...er-bronco/
I'm running the milder one and my street combo pulls hard past 6500rpm.
Geoff - 85 XR DD back in service - with a vengeance!
"Beyond the Palace, Hemi powered drones scream down the boulevard" - Bruce Springsteen
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#3

Call Bo at BoPort he will set you up
88XR4TI:T67/T4 Turbo,85lb inj,PIMPV1.3,LS2-Coils,255LPH,3" exh, Stg4 Head, BoPort Header, Bob's Inline, Cus.body kit, 16" Rims, Supra 3.73 LSD, Rasp.PI3 dash
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#4

Boport arguably has the best selection of cams for turbocharged 2.3/2.5 Limas. However ~ AFAIK ~ they all have a reduced base circle (1-inch). BUT......that's only .090 smaller radius than stock (1.180 B/C) and the change in geometry isn't THAT significant for a DD street cam, using drop-in shims to restore the HLA's "plunger depth" (which Bo supplies with his cams). Hundreds of Lima owners have 'em installed that way. <thumbup>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#5

I have an old Bo-port cam in the car now, along with his valvetrain, HLAs, etc. It's like a mix between what is currently a 1.5 and 1.9. I'm currently working on a new setup for the car though and already have new valves and HLAs. I'll inquire with Bo to see if there are some lash caps available to run one of his cams, even considering a solid roller at this point though. I'll have to talk with shop that everything is at right now, they may have everything in stock to set up a solid roller, maybe even a cam too. I don't drive it often, just a toy for the weekends.

I had an extra engine sitting around, so I had the block cleaned, checked and bored +0.020, cleaned up the crank and ordered pistons, rods, rings, bearings, gasket set, etc. I ordered that stuff 12 weeks ago, so I'm hoping to receive it soon. I also had one of my spare heads ported and setup with the new valves. I truly should need just a hyd roller cam at this point, but it's looking less than likely that I'll be able to find one. I suppose if lash caps are viable and available, I could add them too, but didn't really think I'd have an issue finding one.

Hemi - I've seen varying information on the rocker ratio for these engines, most stating it's a 1.80 ratio. CamCraft states it's a 1.65 ratio, which seems a bit strange. Are you running the 38-2020, with 110 lobe sep?
Early 85 SVO
Keedysville, MD
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#6

(12-01-2021, 01:50 AM)Michael F Wrote:  I......ordered pistons, rods, rings, bearings, gasket set, etc......12 weeks ago, so I'm hoping to receive (them) soon. 

Hemi - I've seen varying information on the rocker ratio for these engines, most stating it's a 1.80 ratio.  CamCraft states it's a 1.65 ratio, which seems a bit strange.  Are you running the 38-2020, with 110 lobe sep?

Soooo........all your parts must be on a container ship anchored off the Long Beach, Calif shoreline, Mike! <eek>

I only have about 1/4 of Hemi's  brainpower (on a good day) ~ BUT.....slider and roller followers have different lift ratios ~ AND, no turbo Limas were ever equipped with roller cams/followers from Ford.  <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#7

I'm aSSuming this is the same Camcraft I got my cam from back in 2007.  The specs look about right, and I remember clearly the mild lift and 118 deg lobe separation of the cam I got, which is the milder of the two in the link I shared, but I couldn't attest to the exact designation anymore.
But these are roller cams.  For my build I used new Melling rocker arms and new Sealed Power HLAs.

Ray, you are too kind.  We all have our areas of expertise.  For sure you have provided orders of magnitude more valuable guidance on this forum than I ever will.
Geoff - 85 XR DD back in service - with a vengeance!
"Beyond the Palace, Hemi powered drones scream down the boulevard" - Bruce Springsteen
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#8

Michael,

What is it that you don't like about reduced base circle cams? The need to shim the HLA's? Believe me if I had the option to purchase billet cam cores that could be finish ground to stock base circle 1.184" I definitely would for my stage 1 cams- but I don't. It would be nice to not have to supply shims and instructions and all the hours on phone or email explaining how to shim HLA's. There is ONE cam core manufacturer still producing billet 2.3 cores and I have to purchase a lot at a time for them to even make them for me. They are not interested in changing their core manufacturing specs to suit a very small portion of their cam core sales so we are stuck with what we have to work with. The reason they are a reduced base circle design in the first place is because the majority of the roller cam cores are intended for performance or racing where high lift is desired. A .630" lift roller cam for example on a stock base circle would not physically fit through the cam bearings to install. So that is the reasoning the cores are made the way they are. On the other hand, there is absolutely nothing wrong with shimming the hla's .060" to make up for the difference in base circle. The peak rocker ratio is changed from 1.80 to 1.82- not enough to cause any problems. An alternative to not having to shim the HLA and be able to use stock narrow-band HLA's would be to use longer valves which would lower rocker ratio by .02 and still not cause any geometry issues but a set of valves is usually more expensive than a set of HLA's and shims -free with my cams. To my knowledge camcraft does not have any roller cores, and if they did at some point years ago they were using the crane core which could be finish ground to stock base circle like the a237 was. The crane core and company is long gone. Crower buys cores from the same company I do. Esslinger, RE and the others use another core manufacturer which I do not believe still produces 2.3 billet cores. That company also only offered the cores in reduced base circle. I am in talks with another manufacturer that has the ability to make me cores at a reasonable price however along with many other companies they are faced with heavy back-logs from supply chain delays and workforce reduction due to covid so I am probably a year or more out before potentially having another core solution.
www.bo-port.com

1986 SVO 617rwhp stock shortblock stage 4 cnc ported iron head and intake, 2.5x cam, header @30psi boost.

email me boportservice@yahoo.com
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#9

Thanks for the information folks, much appreciated!

Boport, the 3x looks like a great option for my goals. I'll be in contact with you soon.
Early 85 SVO
Keedysville, MD
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#10

BTW, I found the specs for my cam and they do not match either one in the link I gave above, so all bets are off. My actual specs are 200deg/200deg 0.420"/0.420" 118deg LSA.
Geoff - 85 XR DD back in service - with a vengeance!
"Beyond the Palace, Hemi powered drones scream down the boulevard" - Bruce Springsteen
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