TheSamba.com :: View topic

Sun May 11, 2025 1:39 pm

Hi Guys

Has any one used this cam how does it perform.
Spec are as follows
Adv. Duration 298°
Dur. @ .050" 248°
Lift @ cam .389"
Lift w/1.1:1 Rocker Arms .428"

I'm rebuilding a 1776cc which I bought with this cam
My engine specs
AS41 full flow case
MAHLE 90.5s
CB2242 cam
CB lightweight lifters
Mildly ported 041 heads
36 Dells

Sun May 11, 2025 1:45 pm

Good cam, spinoff of the 120

Sun May 11, 2025 1:47 pm

mcmscott wrote: Good cam, spinoff of the 120
It should be good on my engine then ??

Sun May 11, 2025 2:20 pm

always ask yourself how you plan to use the vehicle when you buy a cam. There is nothing worse than having a race engine in a street car that will be driven easy. Likewise, if someone plans to occasionally go to the drag races, who wants a cam designed to drive around town. 298 degrees is a lot of cam unless one plans to use it.

Here is what Webcam says about their 288/300 split degree camshaft

Quote: Designed for large displacement racing engines. Works well in a off-road application. Great torque! Requires Exhaust System, High Compression Piston, Performance Valve Spring Kit, and New lifters required.

Here is what they say about their 290/290 camshaft

Quote: Strong mid and upper end performance for mild track engines. Requires Exhaust System, Performance Valve Spring Kit, so sit down and realistically decide how you want to use this car before you commit to a camshaft change, and you will be much happier with the final result.

.

Sun May 11, 2025 9:28 pm

SGKent wrote: always ask yourself how you plan to use the vehicle when you buy a cam. There is nothing worse than having a race engine in a street car that will be driven easy. Likewise, if someone plans to occasionally go to the drag races, who wants a cam designed to drive around town. 298 degrees is a lot of cam unless one plans to use it.

Here is what Webcam says about their 288/300 split degree camshaft

Quote: Designed for large displacement racing engines. Works well in a off-road application. Great torque! Requires Exhaust System, High Compression Piston, Performance Valve Spring Kit, and New lifters required.

Here is what they say about their 290/290 camshaft

Quote: Strong mid and upper end performance for mild track engines. Requires Exhaust System, Performance Valve Spring Kit, so sit down and realistically decide how you want to use this car before you commit to a camshaft change, and you will be much happier with the final result.

.

Thanks for the advice, I bought the engine with the cam and being in South Africa cams are not easy to come by and if they are they fairly expensive.

It going to be a daily with the weekend warrior race night.

Tue May 13, 2025 9:55 am

I have this same cam in my 1915cc and it is made for turbocharged engines although I don't have a turbo on mine yet. There is quite a bit of overlap with the valves I've been told this is good for turbos.

Tue May 13, 2025 5:09 pm

It's a good cam for what you want to do.
Usually 9-1 compression is recommended.
Your heads could be better, but the cam is ok

Sun May 18, 2025 11:22 pm

modok wrote: It's a good cam for what you want to do.
Usually 9-1 compression is recommended.
Your heads could be better, but the cam is ok

I CC'd the heads and they are sitting around 50cc and I'm hoping for a 1.4mm deck height to at least get me to 8.5:1 compression I might have to flycut the heads if we don't get that comp ratio

Mon May 19, 2025 7:11 am

Since you already have it apart for rebuild and cam install would it not make more sense to deck the case or trim the cylinders to get the deck height closer to 1mm? That’d put you at 8.9 in and by itself. Then you could take a less aggressive cut on your heads to bump it to 9 if that .1 added is crucial enough for your build.

Fri Jun 13, 2025 1:25 pm

Rob Combs wrote: Since you already have it apart for rebuild and cam install would it not make more sense to deck the case or trim the cylinders to get the deck height closer to 1mm? That’d put you at 8.9 in and by itself. Then you could take a less aggressive cut on your heads to bump it to 9 if that .1 added is crucial enough for your build.

It's easier to trim the cylinders which is what I will do if in need

Fri Jun 13, 2025 1:28 pm

Rob Combs wrote: Since you already have it apart for rebuild and cam install would it not make more sense to deck the case or trim the cylinders to get the deck height closer to 1mm? That’d put you at 8.9 in and by itself. Then you could take a less aggressive cut on your heads to bump it to 9 if that .1 added is crucial enough for your build.

It's easier to trim the cylinders which is what I will do if in need