RACEGT

Boss 260 Cams

Intake Camshaft RH-(YF3E 6A270 BB) {Mustang Cobra}
LH-(YF3E 6A271 BB) {Mustang Cobra}
Intake Opens @ 6 Deg BTDC
Intake Closes @ 70 Deg BTDC
Intake Opening: 2.54mm Lift @ 30 Deg ATDC
Intake Closing: 2.54mm Lift @ 30 Deg ABDC
Max. Lobe Lift = 5.54064 mm @ 120 Deg ATDC {10mm at Valve}

Exhaust Camshaft RH-(YF3E 6A272 BB)
LH-(YF3E 6A273 BB)
Exhaust Opens @ 54 Deg BBDC
Exhaust Closes @ 16 Deg ATDC
Valve Lift 2.54mm Lift @ 17 Deg BBDC for Exhaust Opening
Valve Lift 2.54mm Lift @ 23 Deg BTDC for Exhaust Closing
Max. Lobe Lift = 5.55152 mm @ 110 Deg BTDC {10mm at Valve}

Boss 290 Cams

Intake Camshaft RH-(8912 6A270 AA)
LH-(8912 6A271 AA)
Intake Opens @ 13.4 Deg BTDC
Intake Closes @ 65 Deg BTDC
Intake Opening: 2.54mm Lift @ 18.9 Deg ATDC
Intake Closing: 2.54mm Lift @ 30 Deg ABDC
Max. Lobe Lift = 7.18969 mm @ 113.8 Deg ATDC {13mm at Valve}

Exhaust Camshaft RH-(8912 6A272 AA)
LH-(8912 6A273 AA)
Exhaust Opens @ 59.7 Deg BBDC
Exhaust Closes @ 17.9 Deg ATDC
Valve Lift 2.54mm Lift @ 27 Deg BBDC for Exhaust Opening
Valve Lift 2.54mm Lift @ 17.1 Deg ABDC for Exhaust Closing
Max. Lobe Lift = 6.1187 mm @ 112.7 Deg BTDC {12mm at Valve}

Im no wizard when it comes to cams but i would like to see the Spec's of the GT production cams and DJR cams. Hope this information benifits people.

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BLACK GT, Headers, Random Tech CAT's, Herrod Exhaust , Exedy Clutch, Underdrives, CAPA 80mm Throttle Body, BPT 80mm Helix Plate, AWC CAI, BMC filter, Short Shift, KONI Adjustable Shocks, Whiteline Springs, Whiteline Sway Bars, Castor Camber Kit and 3.73 Gears.
Dyno 311.0 RWKW as at 5/5/2005.
ET 13.64 @ 104.82MPH.253RWKW
Phillip Island Best Lap Time 1:55.40.
Winton Best Lap Time 1:45.48.

 

XRQTOR

Very nice mate. Are you after the cam specs for the GT production race car, if not im confused. Chris has some of his own cams as does Herrods but i doubt they will be willing to post their details like you have.

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Blown Boss 377rwkw

"Its not the 300rwkw, its the instant V8 torque that kills things"

RACEGT

Mmmmm XRQTOR your right and I fully understand why they don't and will not post there specs, but the only problem is I want the best for my GT and real soon I will be putting cams in my GT but first I wana know exactly what type of cams are going into my car and to satisfy in my mind that they will be OK for the street and the trashing I give it on the race track.

The last thing I wana do is put a set of cam's In my car that will cause damage or excessive fuel consumption or non drivabillity. So far the only two cam's which I have seen work are the GT production cam's which work well on the race track with slight rough idle (I have not seen any dyno graphs tho), and chris's cam's which have shown excellent results, power gains and with smooth idle (304kw with a uni chip).

I have a good understand of the fundamentals of camshafts and Im just protecting myself. The other factor is the $dollars and the Installation agreement depending on the Party doing the job. Im looking for a cam product that I can use unrestricted in my GT at an affordable price. What shits me about this topic is all the politics between parties which im not interested in.

See Attachments for Boss 260 and Boss 290 cams graph.

Attached Images

Boss260Boss290.jpg (24.9 KB, 72 views)

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BLACK GT, Headers, Random Tech CAT's, Herrod Exhaust , Exedy Clutch, Underdrives, CAPA 80mm Throttle Body, BPT 80mm Helix Plate, AWC CAI, BMC filter, Short Shift, KONI Adjustable Shocks, Whiteline Springs, Whiteline Sway Bars, Castor Camber Kit and 3.73 Gears.
Dyno 311.0 RWKW as at 5/5/2005.
ET 13.64 @ 104.82MPH.253RWKW
Phillip Island Best Lap Time 1:55.40.
Winton Best Lap Time 1:45.48.