Does Anyone Recognise This Camshaft?

[spike 1]

Hi chaps,

I'm currently rebuilding a 1.9 XU 8valve engine with a Longman head. I could do with idetifying the cam so i can time it in properly.I think the numbers on the end say PTS 7048 but they are a bit blurred. Any ideas?

 

Cheers

Mike

[brumster 135 1 Cars]

CTS 7048 was listed as "wide band gravel", it's their gravel spec cam with a wider spread of torque than the CTS 7040 which was the tarmac cam.

[Baz 421]

On the subject, and apologies for poaching the thread Mike! Does anyone know what a Longman GpA/2 cam should be?

Edited April 1, 2010 by Baz

[welshpug 1,661]

IIRC this cam is 288 duration, ~12mm lift and 3.6 lift at TDC, Sean Mckeown used one in one incarnation of his engines and Sandy might be able to advise a little more as I think he did measure it.

 

I hope you've got 1.6 pistons or forged ones, as it wont work very well at all with stock compression.

[Anthony 1,003]

On the subject, and apologies for poaching the thread Mike! Does anyone know what a Longman GpA/2 cam should be?

If it's the same as the Piper GPA2 cam, the specs are as follows:

 

P16GPA2 - Group A Rally

Power Band = 3000-7600

308 degrees duration (both inlet and exhaust)

12.45mm lift (both inlet and exhaust)

4.72mm lift @ TDC (inlet) and 4.57mm lift @ TDC (exhaust)

Shimmed to 0.2mm (inlet) and 0.25mm (exhaust)

[Baz 421]

Ahh that makes sense then given the figures i have are very similar!

[spike 1]

Thanks for the replies so far. Does anyone know the timing figures for the CTS 7048?

 

Cheers

Mike