Use Std Road Std Road Std Road Std Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Mild Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Fast Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Max Road Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally Rally/Race

Name 850 Mini + Std Minor 850/998 Metro Cooper 998/ S/1100 midget 1275 Metro + Turbo CA1 256 H/T 244/264 (From minimania) SW5 SW5-07 VP1 HR255 (Cut by piper) MD256 BP255 CA2 MSPD Fast road Cooper S 250/264 (From minimania) 260 265 Mild rd/Turbo APT266-MN MD266 MD246 997 Cooper MG/Vanden Plas Metro 262/268 (From minimania) Evolution001 264/268 (From minimania) 450/500 BP270 268/278 (From minimania) MD276 ATP276-MN VP7 MSPD Trackday KC-530/550/600 (kent cams?) 550/600 RE13OT (cut by piper) 731 VP6 CA3 284 super/turbo (minimania) VP3C SW10 BP285 MD286 MD286SP 285 643/544 RE13PP (cut by piper) CA4 SPVP3 544 2046 466 457 286 (From minimania) STR930 VP8C 288/292 (From minimania) MSPD Rally 272 VP9C 295 CA6 MD296 MD296SP BP300

Maker BMC Leyland BMC Leyland Minisport MED Elgin Swiftune Swiftune APT Calver ST Kent Piper Minisport Morspeed BMC Elgin Minisport Minisport APT Kent Kent BMC Leyland Elgin Minispares Elgin Kent Piper Elgin Kent APT APT Morspeed Minispares Kent Calver ST BMC APT Minisport Elgin Crane/APT Swiftune Piper Kent Kent Minisport Kent Calver ST Minisport APT BMC Piper Piper Piper Elgin Kent APT Elgin Morspeed Calver ST Crane/APT Minisport Minisport Kent Kent Piper

Duration int/ex 230/230 230/240 230/252 230/252 240/251 256/256 244/264 244/244

Intake lift mm 5,08 6,35 6,35 6,35 6,46 7,25

Exhaust lift mm 5,08 6 6,35 6,35 6,46 7,21

7,14

7,14

260/260 254/254 264/264 252/252 252/252 240/252 250/264 260/270

7,34 6,66 7,14 6,46 7,75 6,35

7,34 6,66 7,14 6,46 7,57 6,35

6,5

6,71

260/270 252/252 252/252 252/268 262/268 264/268 264/269 252/268 276/276 268/278 270/280

6,68 7,23 6,35 6,35

6,85 7,23 6,35 6,35

270/276 270/270 278/274? 278/274 277/277 268/268 288/288 268/268 284/284 276/288 280/280 280/280 280/290 280/290 280/290 274/274 288/282 286/286 288/288 256/256 272/272 276/284 286/286 283/290 286/286 288/292

6,67

6,67

7,44

8

8 7,43 7,43 7,37

7,9 7,43 7,43 7,37

7,92 6,5

7,92 6,5

8,01 7,39

8,41 7,39

8 8 7,88 7,99

8,23 8,23 8,13 7,99

7,86

7,86

8,3

8,3

Int Lift inch 0,200 0,250 0,250 0,250 0,254 0,285 0,262 0,281

Ex lift inch 0,200 0,235 0,250 0,250 0,254 0,284 0,262 0,281

0,289 0,262 0,281 0,254 0,305 0,250 0,262 0,255

0,289 0,262 0,281 0,254 0,298 0,250 0,250 0,264

0,270 0,263 0,285 0,250 0,250 0,318 0,264 0,289 0,263 0,301 0,318 0,293 0,280 0,289 0,315 0,293 0,293 0,290 0,252 0,312 0,256 0,290 0,315 0,291 0,312 0,315 0,315 0,310 0,315

0,270 0,270 0,285 0,250 0,250 0,318 0,289 0,289 0,263 0,301 0,321 0,315 0,280 0,292 0,311 0,293 0,293 0,290 0,252 0,312 0,256 0,290 0,331 0,291 0,312 0,324 0,324 0,320 0,315

0,309 0,319 0,315 0,286 0,270 0,312 0,302 0,327 0,339 0,320

0,309 0,319 0,315 0,284 0,273 0,312 0,302 0,327 0,339 0,320

Power band 800-5500 1000-5500 1000-5800 1000-5800 1000-6000 1000-6000 1000-6000 1000-6000 1000-6000 1000-6000 1000-6000 1000-6000 1000-6000 1200-6500 1200-6000 1200-6000

Max RPM 6000 6000 6200 6200

LCA 107,5 107,5 107,5 107,5 107,3 109,0

Overlap 15 20 26 26 31,0 38

108,0 28

109,0 106,0 108,0 107,5 108,0 107,5

42 42 48 38 36 31

1200-6500

106,0 53

1200-6500 1200-6500 1500-6500 1500-6500 1500-6500

106,0 108,0 107,5 107,5

53 36 37 45

107,0 1500-6500 1500-6500

107,5 45 107,0 62

1500-7000 1500-7000 1600-6500 1800-7000 2000-7000 2000-7000 2000-6000 2500-7000 2400-7200 2000-7000

106,0 63 7000

7500

2000-7200 2000-7000 2000-7500 2000-7500 2000-7500 2500-7500 2500-7500 2500-6500 2500-7300 2500-7500 3000-7000 3000-7000 3000-7500 3000-7500 3000-8000

105,5 108,0 106? 106,0 104,5 107,5 102,0 107,5 110,0 105,5 108,0 107,0 106,0 106,0 106,0 110,0

61 54 64? 64 68 53 84 53 71 64 66 73 73 54

106,0 73 7600 107,5 73 104,0 104,0 106,0

8500

102,0 84

3000-8000 286/296 290/300 288/300 290/300 290/300 316/316

8,78 8,13 7,86 8,23 8,23

8,92 8,53 8,01 8,64 8,64

0,346 0,320 0,309 0,324 0,324 0,305

0,351 0,336 0,315 0,340 0,340 0,305

3500-7500 3200-8000 2800-7500 3200-8000 3200-8000 3000-8000

104,0 83 106,0 83 106,0 83 106,0 104,0 108

Valve lift 1.25 Int 0,250 0,313 0,313 0,313 0,318 0,356 0,328 0,351 0,000

1.25 Ex lift 0,250 0,294 0,313 0,313 0,318 0,355 0,328 0,351 0,000

Lift 1.3 Int 0,260 0,325 0,325 0,325 0,331 0,371 0,341 0,365 0,000

Lift 1.3 Ex 0,260 0,306 0,325 0,325 0,330 0,369 0,341 0,365 0,000

Lift 1.5 Int 0,300 0,375 0,375 0,375 0,381 0,428 0,393 0,422 0,000

Lift 1.5 Ex 0,300 0,353 0,375 0,375 0,381 0,426 0,393 0,422 0,000

Lift 1.7 Int 0,340 0,425 0,425 0,425 0,432 0,485 0,445 0,478 0,000

Lift 1.7 Ex 0,340 0,400 0,425 0,425 0,432 0,483 0,445 0,478 0,000

Suggested C/R 8.0-9.0 8.0-9.5 8.0-9.5 8.0-9.5 8.5-9.5

Price Repro/Billet in 07

8.5-9.5 8.5-9.5 8.5-9.5

$169.95/£63/£63/-

0,361 0,328 0,351 0,318 0,381 0,313 0,328 0,319 0,000 0,338 0,329 0,356 0,313 0,313 0,398 0,330 0,361 0,328 0,376 0,398 0,366 0,350 0,361 0,394 0,366 0,366 0,363 0,315 0,390 0,320 0,363 0,394 0,364 0,390 0,394 0,394 0,388 0,393 0,000 0,387 0,399 0,394 0,358 0,338 0,390 0,378 0,408 0,424 0,400 0,000 0,000 0,432 0,400 0,387 0,405 0,405 0,381

0,361 0,328 0,351 0,318 0,373 0,313 0,313 0,330 0,000 0,338 0,338 0,356 0,313 0,313 0,398 0,361 0,361 0,328 0,376 0,401 0,394 0,350 0,365 0,389 0,366 0,366 0,363 0,315 0,390 0,320 0,363 0,414 0,364 0,390 0,405 0,405 0,400 0,393 0,000 0,387 0,399 0,394 0,355 0,341 0,390 0,378 0,408 0,424 0,400 0,000 0,000 0,439 0,420 0,394 0,425 0,425 0,381

0,376 0,341 0,365 0,331 0,397 0,325 0,341 0,332 0,000 0,351 0,342 0,370 0,325 0,325 0,413 0,343 0,376 0,341 0,391 0,413 0,381 0,364 0,376 0,409 0,380 0,380 0,377 0,328 0,406 0,333 0,377 0,410 0,378 0,406 0,409 0,409 0,403 0,409 0,000 0,402 0,415 0,410 0,372 0,351 0,406 0,393 0,425 0,441 0,416 0,000 0,000 0,449 0,416 0,402 0,421 0,421 0,397

0,376 0,341 0,365 0,331 0,387 0,325 0,325 0,343 0,000 0,351 0,351 0,370 0,325 0,325 0,413 0,376 0,376 0,341 0,391 0,417 0,409 0,364 0,380 0,404 0,380 0,380 0,377 0,328 0,406 0,333 0,377 0,430 0,378 0,406 0,421 0,421 0,416 0,409 0,000 0,402 0,415 0,410 0,369 0,355 0,406 0,393 0,425 0,441 0,416 0,000 0,000 0,457 0,437 0,410 0,442 0,442 0,397

0,433 0,393 0,422 0,381 0,458 0,375 0,393 0,383 0,000 0,405 0,395 0,427 0,375 0,375 0,477 0,396 0,434 0,394 0,452 0,477 0,439 0,420 0,434 0,472 0,439 0,439 0,435 0,378 0,468 0,384 0,435 0,473 0,436 0,468 0,472 0,472 0,465 0,472 0,000 0,464 0,479 0,473 0,429 0,405 0,468 0,453 0,490 0,509 0,480 0,000 0,000 0,519 0,480 0,464 0,486 0,486 0,458

0,433 0,393 0,422 0,381 0,447 0,375 0,375 0,396 0,000 0,405 0,405 0,427 0,375 0,375 0,477 0,434 0,434 0,394 0,452 0,482 0,472 0,420 0,438 0,467 0,439 0,439 0,435 0,378 0,468 0,384 0,435 0,497 0,436 0,468 0,486 0,486 0,480 0,472 0,000 0,464 0,479 0,473 0,426 0,410 0,468 0,453 0,490 0,509 0,480 0,000 0,000 0,527 0,504 0,473 0,510 0,510 0,458

0,491 0,445 0,478 0,432 0,519 0,425 0,445 0,434 0,000 0,459 0,447 0,484 0,425 0,425 0,541 0,449 0,491 0,446 0,512 0,541 0,498 0,476 0,491 0,535 0,497 0,497 0,493 0,428 0,530 0,435 0,493 0,536 0,495 0,530 0,535 0,535 0,527 0,535 0,000 0,526 0,542 0,536 0,486 0,459 0,530 0,513 0,556 0,576 0,544 0,000 0,000 0,588 0,544 0,526 0,551 0,551 0,519

0,491 0,445 0,478 0,432 0,507 0,425 0,425 0,449 0,000 0,459 0,459 0,484 0,425 0,425 0,541 0,491 0,491 0,446 0,512 0,546 0,535 0,476 0,496 0,529 0,497 0,497 0,493 0,428 0,530 0,435 0,493 0,563 0,495 0,530 0,551 0,551 0,544 0,535 0,000 0,526 0,542 0,536 0,483 0,464 0,530 0,513 0,556 0,576 0,544 0,000 0,000 0,597 0,571 0,536 0,578 0,578 0,519

8.5-9.6 8.5-9.5 8.5-9.5

£68.50/£68.81/ (minispares) £90/£175 (£67.56 minispares) £42.01/- (-£8.50) £60/-

8.5-9.5 8.5-9.5 8.5-9.5 8.5-9.5

8.5-9.5 8.5-9.5 8.5-9.5 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.0-10.0 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.5 9.5-10.6 9.5-10.5 9.5-10.5 9.5-10.5 10.0-12.0 10.0-12.0 10.0-12.0 10.0-12.1 10.0-12.0 10.0-12.0 10.0-12.0 10.0-12.0 10.0-12.0

/£80.25 (minispares) /£88.13 (minispares) £42.01/- (-£8.50)

$169.95/£45.94/- (-£8.50 surcharge) £45.94/- (-£8.50 surcharge) £68.81/ (minispares)

$169.95 £47.38/- (minispares) $169.95 £90/£175 $179.95/£71.49/ (minispares) $249.95 $217/£60/£47/£68.50/$217/£42.01/- (-£8.50) $225.00/£63/£90/£175 £71.49/ (minispares) £122.93/ (minispares) £45.94/- (-£8.50 surcharge) £68.50/£42.01/- (-£8.50) $217/$329 £64.78/- (minispares) £90/£175 £90/£175 £90/£175 $199.95

$249.95 £60//£210

10.0-12.0 10.0-12.0 10.0-12.0 11.0-13.0

£42.01/- (-£8.50) £76.83/ (minispares) £128.28/ (minispares) £90/£175

Rally/Race Rally/Race Rally/Race Rally/Race Rally/Race Rally/Race Rally/Race Race Race Race Race Race Race Race/Drag Race/Drag Race/Drag Race/Drag Race/Drag Injection (Spi) Injection (Spi) Injection (Mpi) Injection (Mpi) Injection (Spi) Injection (Spi)

CA5 HR300 (Old Piper Profile) SPVP4 MSPD Super Sprint 649 649+ CA7 MSDP Full Race Scatter 310 (From minimania) C-AEA-597 MD310 MD310SP SPVP5 MSDP Ultimate Race Scatter BP320 HR320 (Old Piper Profile) C-AEA-595 MD315 MD274 BP270i CAMMP2 BP270MPi CAM270M MD274SP

Minisport Piper APT Morspeed BMC Piper Minisport Morspeed Elgin BMC Kent Kent APT Morspeed Piper Piper BMC Kent Kent Piper Minisport Piper Minisport Kent

300/300 300/300 296/290 300/300 300/300 300/312 306/306 312/312 310/310 320/300 310/310 310/310 306/306 318/318 320/320 316/316 320/320 314/314 248/274 252/264 252/264 252/264 248/274

8,01 8,13

8,01 8,13

8,37

8,33

8,62 8,62

8,62 8,62

8,81 7,23

8,81 7,13

6,73 7,23

7,11 7,13

0,315 0,320 0,324

0,315 0,320 0,321

3000-7500

0,315 0,312 0,330

0,315 0,328 0,328

3200-7500 3000-7500 3500-8000

107,5 95 100,0 106,0 94

0,380 0,315 0,339 0,339 0,324

0,380 0,315 0,339 0,339 0,321

4000-8500 4000-8500 4200-8900

106,0 98 106,0

0,328

0,328

0,315 0,347 0,285 0,255 0,273 0,265 0,285

3500-7800

102,5 95 104,0 92 8400

9200

0,315 0,347 0,281 0,270

4000-8500 4500-8500 4000-8500 4500-9000 1000-6000 1500-6500

103,0 104,0 108 107,5 115 104,0 112,0 37 110,0

0,270 0,280 0,281

1500-6500 1500-6500 1500-6500

110,0 110,0 38 112,0

0,394 0,400 0,405 0,000 0,394 0,390 0,412 0,000 0,475 0,394 0,424 0,424 0,405 0,000 0,410 0,000 0,394 0,434 0,356 0,319 0,000 0,341 0,331 0,356

0,394 0,400 0,401 0,000 0,394 0,410 0,410 0,000 0,475 0,394 0,424 0,424 0,401 0,000 0,410 0,000 0,394 0,434 0,351 0,338 0,000 0,338 0,350 0,351

0,410 0,416 0,421 0,000 0,410 0,406 0,428 0,000 0,494 0,410 0,441 0,441 0,421 0,000 0,426 0,000 0,410 0,451 0,370 0,332 0,000 0,355 0,344 0,370

0,410 0,416 0,417 0,000 0,410 0,426 0,426 0,000 0,494 0,410 0,441 0,441 0,417 0,000 0,426 0,000 0,410 0,451 0,365 0,351 0,000 0,351 0,364 0,365

0,473 0,480 0,486 0,000 0,473 0,468 0,494 0,000 0,570 0,473 0,509 0,509 0,486 0,000 0,492 0,000 0,473 0,520 0,427 0,383 0,000 0,410 0,397 0,427

0,473 0,480 0,482 0,000 0,473 0,492 0,492 0,000 0,570 0,473 0,509 0,509 0,482 0,000 0,492 0,000 0,473 0,520 0,421 0,405 0,000 0,405 0,420 0,421

0,536 0,544 0,551 0,000 0,536 0,530 0,560 0,000 0,646 0,536 0,577 0,577 0,551 0,000 0,558 0,000 0,536 0,590 0,484 0,434 0,000 0,464 0,450 0,484

0,536 0,544 0,546 0,000 0,536 0,558 0,558 0,000 0,646 0,536 0,577 0,577 0,546 0,000 0,558 0,000 0,536 0,590 0,477 0,459 0,000 0,459 0,476 0,477

11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 11.0-13.0 12.0-14.0 12.0-14.0

$217/$329 £59.01/- (minispares) £90/£175 £42.01/- (-£8.50) $290.07/£76.83/ (minispares) £128.28/ (minispares) $217/$329 £90/£175

12.0-14.0 12.0-14.0 8.5-9.5 £71.49/ (minispares) 8.5-9.5 £90/£175 8.5-9.5 £148.13/- (- £60 surcharge) 8.5-9.5 £110/8.5-9.5 £45.94/- (-£8.50 surcharge) 8.5-9.5 £128.28/ (minispares) By John A Clarke