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TU1 turbo cam, thoughts

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Old 05-06-2012, 04:27 AM
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Default TU1 turbo cam, thoughts

Just wondering what everyones thoughts on speed incs TU1 cam.

Im planning on fitting a precision 67mm turbo, model number 6776HPS PART NO PTB 650-1550

im not aiming for big power with the turbo but may upgrade to a billet 76mm precision at a later date, or switch to twins.

Want a cam that will pass emissions and run good off boost, but have a slightly lumpy idle for the cammed v8 sound.

im also either going to go 243 heads and low boost, then eventually forged rods and dished pistons, or 317 heads, with forged rods and flat top pistons.

aiming for around 500whp on a stock short block

The car is a 2004 vauxhall monaro (gto)
LS1
M6
Old 05-06-2012, 01:53 PM
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It wouldn't pass in California, if that's any help.
225/225/113lsa = -1* overlap, you'd need -4*(224/224 114lsa) in California.

Any idea how your emissions test compare to California?
Old 05-06-2012, 03:59 PM
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UK tests aren't as strick, but I wasn't sure how the turbo effects the emissions readings
Old 05-06-2012, 04:18 PM
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i have that cam and like it. no emission tests for me tho...
Old 08-30-2012, 05:40 PM
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anyone with results with a TU1 cam and 317 heads, turbo cars of course? just wondering



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