Which Cam

[205freak 7 1 Cars]

I am building a 2l 8v engine on throttle bodies 45mm and was wondering which camshaft I would be best going with??

The engine have bottom lightenend flywheel/polished pistons/crank(1.9diesel), a ported&polished head and skimmed to raise the compression,a I am mainly using for fast road occasionally hill climbs and want to have good mid range torque and would like your advise from these ones i selected:

 

 

-CatCams 4900243 - Ouverture [0.1mm+j] : Adm. 288° / Ech. 288° | Ouverture [1.0mm+j] : Adm. 262° / Ech. 262° | Levée Max : Adm. 12,50mm / Ech. 12,50mm | Levée au PMH : Adm. 4,45mm / Ech. 4,45mm | Pleine ouverture Adm. 106° / Ech. 106°

 

-CatCams 4900266 - Ouverture [0.1mm+j] : Adm. 295° / Ech. 295° | Ouverture [1.0mm+j] : Adm. 250° / Ech. 250° | Levée Max : Adm. 12,00mm / Ech. 12,00mm | Levée au PMH : Adm. 3,15mm / Ech. 3,10mm | Pleine ouverture Adm. 110° / Ech. 110°

 

-CatCams 4900367 - Ouverture [0.1mm+j] : Adm. 294° / Ech. 294° | Ouverture [1.0mm+j] : Adm. 254° / Ech. 254° | Levée Max : Adm. 12,10mm / Ech. 12,10mm | Levée au PMH : Adm. 3,55mm / Ech. 3,60mm | Pleine ouverture Adm. 108° / Ech. 108°

 

-PiperCams - P16BP285 º

 

-KentCams PT27

 

Thanks,

Ruben

 

[dcc 855]

What cr / rods pistons / head

[205freak 7 1 Cars]

Dcc im aiming for a cr of around 11.5.1 or higher, the engine its a xu10j2 with std rods/pistons/head!!

[welshpug 1,661]

no double valve springs?

[205freak 7 1 Cars]

welshup i have a set of kent double valve springs if that helps!

[dcc 855]

i have 12.0:1 ish cr, and a newmans phase 4 cam, can't fault it too much

[205freak 7 1 Cars]

DCC 12 ish cr whats your engine setup??? I want to achieve between 150-160bhp but with plenty of torque!! In your opinion which would you choose??!

[SimonJ 2]

I get around 153 bhp with a PT27 on 45s. While I've the engine out I'm going to change to a Newman PH4 which I think should give more power but still be OK not to need too many revs (>3000) off the line.

[205freak 7 1 Cars]

Simonj whats the work that has been done to it???

[SimonJ 2]

The engine was originally a Skip Brown Roadspeed conversion so lightened and balanced bottom end and some mild head work. Standard ignition. PTS Gp N exhaust. The cam and carbs took it from 141 to 153. Nothing fancy.

[petert 589]

This one, if you sure about having CR over 11.5:1.

 

-CatCams 4900243 - Ouverture [0.1mm+j] : Adm. 288° / Ech. 288° | Ouverture [1.0mm+j] : Adm. 262° / Ech. 262° | Levée Max : Adm. 12,50mm / Ech. 12,50mm | Levée au PMH : Adm. 4,45mm / Ech. 4,45mm | Pleine ouverture Adm. 106° / Ech. 106°

[205freak 7 1 Cars]

So the 4900243 should have a rpm range from 3000-7000 or 3000-7500, the catcams page does not tell me their rpm range??!!

[petert 589]

It's big, but has an earlier closing time than the other two Catcam profiles. Thus it will give a better dynamic CR and thus better mid range. Mind however, that you will need to set up the valve springs properly and check valve to piston clearances. It's definitely not just a drop in cam.

[205freak 7 1 Cars]

Thanks for the advise!!!