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Carrillo Carr Bolts (SET OF 8)
Carrillo Carr Bolts (SET OF 8)
$412.00
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Camshaft STREET 10.5mm Lift High Performance
[SA425]
$325.00

All of our street/performance cams are daily driver friendly with gentle opening ramps for good idle and transition with no lag or flat spots.  Our custom designs have progressively more top end.

STREET HIGH PERFORMANCE

NEW CAM  (No Exchange Necessary.)

Street High Performance upgrade for all Weber cars. Our #425 10.5mm cams are similar to the factory AUTODELTA 10.5mm 1750/2000 performance profile with the modified opening profile for  good lowend torque and idle.  Midrange and top end are superb with no flat spot. Duration 254 degrees @ .050" lift.  Base circle diameter 1.030," Standard 1.075.

THERE ARE TWO SETUP COMBINATIONS: Mid-range will be about the same with both setups. 

BASIC SETUP -- A pair of these SA425 cams. as intake and exhaust, will be strong up to 7000 RPM, with great top end for track events and still be docile enough for street. Our street performance 2.0 10.5:1 COMPRESSION test engine made 171 HP with very good low end torque and idle.

ULTIMATE STREET SETUPS: Enhance top end for those track days by using SA424. as intake with this #425 as exhaust. Sorry no dyno test results for increase.

PORTING:  Cleaning up the bowls from valve seats to back guides is quite sufficient for street performane cams without enlarging the runners.  Full porting is marginaly appropriate for street unless you plan to do track days.  Enlarging the ports enhances gain from midrange up and pays handsomely above 7000 rpm.

VALVES:  Enlarging the window into the chambers with our 1mm oversize valves is equally valuable and lets cams have full affect for both street performance and race.

HEADERS:  Cam and porting do make a big difference on their own, but these enhancements will only reach their full potential with our Spruell Motorsport free flow headers.

FEATURES:

  • Locktab furnished with cam.
  • Bolt in with no clearance issues with any piston. 
  • Our cams have super durable lobes that are first hardwelded before precisioon regrinding.
  • To minimize lobe interference with follower bores with high lift performance cams, the base circle is undercut to 1.030."

All new and reground cams should be installed with new followers.  There is risk of damage with old followers. We can only guarantee satisfaction with Spruell Motorsport followers. 

UPGRADES:

  • Extra lock tabs $3.00 each (in addition to one furnished free).
  • Set of followers, add $145.00.

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Spruell Motorsport Alfa is your source for performance parts for Alfa Romeo.
We specialize in Alfa Romeo 101, 105 and 115 drive train products for engine and gearbox.
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