Pts Gr. A Cam

[205freak 7 1 Cars]

Hi would like to know if anyone have some info regarding the Peugeot Talbot Sport Gr. A camshfat used on 205 309 in the 80´s??

 

Thanks

[petert 588]

What would you like to know? All I can remember is the duration of 251deg @ 0.050", 106 deg LCL and 0.465" maximum lift. Which meant it was absolute borderline with standard springs.

[pug_ham 244 3 Cars]

I don't know any info on them but which PTS group A camshaft, max torque (7048), 1.9 'performance' (7060) or maximum top end (7040)?

 

g

[welshpug 1,661]

I think Sandy Knows the spec of the 7048, I have one that used to be in an engine he rebuilt and specified a different cam for.

 

it does indeed fit straight in a standard head, but no chance of it working with an afm.

Edited October 11, 2012 by welshpug

[205freak 7 1 Cars]

Ok thanks for the replys.

I´ve jus got hold of one as soon it arrives going to see wich one max torque (7048), 1.9 'performance' (7060) or maximum top end (7040) and post some pics of it.

What´s the difference between them?!!

[welshpug 1,661]

valve lift and duration vary.

[205freak 7 1 Cars]

valve lift and duration vary.

 

Ok, wich can roughly work with the AFM until i can get a proper management!?!!?

[welshpug 1,661]

none of them in my experience!

[205freak 7 1 Cars]

Hi just got hold off another cam, i do not have any info about it, here are some pics of it, any help would be great.

 

Edited October 16, 2012 by 205freak

[welshpug 1,661]

a clearer pic of the end of the cam would help

 

you can measure peak lift yourself, and if you have a head, a dial gauge, and a degree wheel, you can plot the duration yourself.

[205freak 7 1 Cars]

a clearer pic of the end of the cam would help

 

you can measure peak lift yourself, and if you have a head, a dial gauge, and a degree wheel, you can plot the duration yourself.

 

Tomorrow i´ll take a better pic, on the end of the cam it´s written SB GP A do you know of made it??!!

[205freak 7 1 Cars]

welshpug just took some new pics of it showing all the marks on the cam. Can this be a Skip Brown Cam??!!

 

 

Thanks

[Anthony 1,003]

I'd agree that is a Skip Brown camshaft, although I don't know the exact specifications of their "Group A" camshaft I'm afraid.

[petert 588]

I posted them above. Mine was identical.

[205freak 7 1 Cars]

I posted them above. Mine was identical.

 

Anthony and petert thanks for the confirmation of the cam. Petert this cam will be best suited to use with carbs and using a different management without using carbs or itb how would it idle??!!

[welshpug 1,661]

fine as long as compression is high enough.

[205freak 7 1 Cars]

fine as long as compression is high enough.

 

 

Welshpug i´m building a xu10j2 engine with the inlet manifold from the xu5ja, going the polish and port the head, using the oe bottom end light and balanced, how much would i need to skimmed the head to bring the compression higher??!

 

The std ecu from this engine will it work fine with the cam or better using a dta, emerald or megasquirt?!?!

[petert 588]

It doesn't work well with an AFM and standard ECU. It works fine with a std inlet manifold provided you map it via TPS position.

[205freak 7 1 Cars]

Petert using the management from the xu10j engine a magnetti marelli ecu wich uses a tps position would it idle properly???

[petert 588]

I think that ECU uses manifold pressure as the primary load source. It will work, but the reversion pulses will be difficult to deal with at low RPM.

[White Pugs 6]

For heavens sake Man put some bloody trousers on!!

[205freak 7 1 Cars]

For heavens sake Man put some bloody trousers on!!

 

lol..ok mate will remember those words next time i take some pics!!

[jimmi 0 1 Cars]

Anyone know the spec of the CTS /PTS 7048 camshaft so I can dial it in correctly ? Got my hands on a vernier pulley (Kent Cams CA31) and plan on fitting it this weekend. The engine currently running a stock pulley and engraving on head includes 'FL @106'

[acox99 74 1 Cars]

That would mean full lift @106 degrees. Seems very mild.

[petert 588]

Full lift at 106 is getting near fully fat. An LCL of 114 would be mild, whilst 102 would typically rev to 9000+. Look at some profiles and descriptions on cam makers websites.

 

Here's some data for you to peruse.

 

http://www.bikeboy.org/duccamspec.html

Edited October 15, 2015 by petert