Performance Cam Specs

NOW AVAILABLE - NEW CHILLED IRON CAM BLANKS for TR250, TR6, GT6 and all SPITFIRE & MIDGET 1500 engines.

Make/Model Cam # Lift Duration Power range Notes Price
Midget/Sprite 2A948 .320" 260 degrees 3500-6500 Good mid-range $110
TSI275-4 .425" 275 degrees 3000-7000 Flat power curve $125
MGB TSI179A .417" 268 degrees 3500-6500 Good mid-range $110
TR2-4 D .393" 284 degrees 3500-5500 Upper mid-range $110
F .432" 300 degrees 4000-6000 Race only $125
G-3 .499" 309 degrees 4200-6500 Race only $135
6-cyl TR

NOTE:  We now have NEW chilled iron  cam blanks for TR6, TR250 and GT6.  Any of the 6 cylinder cams may be ground on a new blank.  Add $150 to the price of a reground cam.  A core will not be required!  Please specify new blank when ordering.

S2 .405" 282 degrees 3500-6000 Good mid-range $135
S4 .410" 293 degrees 4200-6500 Marginal for street $145
TSI275-6 .425" 275 degrees 3000-6500 Flat power curve $145
TSI293-7 .475" 293 degrees 5000-7000 RACE ONLY $185
Spitfire (all) 
Midget 1500

NOTE:  We now have NEW chilled iron cam blanks for Spitfire and Midget 1500 engines.  Any of the Spitfire or Midget 1500 cams may be ground on a new blank. Add $150 to the price of a reground cam.  A core will not be required.  Please specify new blank when ordering.

 

 

B .409" 280 degrees 3500-6000 Good mid-range $110
TSI275-4 .425" 275 degrees 3000-6500 Flat power curve $125
A-6 .391" 288 degrees 4000-7000 Marginal for street $140
A-8 .465" 290 degrees 4500-7500 Race only $140
TSI298-4 .485" 298 degrees 4500-8000 Race only $140
TR7 TSI119 .384" 276 degrees 3500-6000 Good mid-range $145
TR8 TSI256 N/A Stock 3000-6000 Good low speed perf. 
This is a "torque" cam.
$195
TSI262 .445" 262 degrees 3000-6000 Good mid-range $195
TSI264 .480" 264 degrees 3500 - 6500 upper mid-range $195
NOTE: Other cam profiles available including full race only profiles. Please call to discuss your specific needs.

Reground cam prices are exchange.  You will need to return a useable cam core.

 

Note: As a general guide, all of the cams listed, except race only, will give you about 10% increase in power over the stock unit. Care must be taken in selecting a cam that will give power where it is needed. For example, an autocross application needs power in low to mid-range, so a cam that doesn't start to produce power until 4500 rpm would not be the right choice for this application.

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