How do you emprove if.....

gary, what manifold are you refering to, the exhaust manifold.

Yes I changed the exhaust manifold but my above posts are refering to the inlet cam, std is 240degree 7mm lift, CA18DE cam is 248degree and 8mm lift.

So would it be adviseble for me to fit the inlet cam, I have a stock manifold and a T28 turbo?

It will make more power for sure, the mid range torque is where the best improvements are so far but it still needs to be tuned.

Stock manifold is not that bad actually, it's quite compact but if you remove it and look how the runners are grouped and split then you'll see it quite ok, not a poo Log style manifold but more in the direction of a compact unequal length manifold.

So the point is will my engin be relieble with the inlet cam, would there be a long term fall in reliebility?

Well when I fitted the manifold (just a manifold change nothing else) the car went much better. I would say the mid range torque is about the same so is the lag but the top end power was where the biggest changes were. After 4500rpm I could deffinately feel more power.

I cant see why the reliablity would change much. The wear on the motor will increase but that is because you are getting more cylinder pressure so therefroe more wear on the motor.

Lol, that's the price you have to pay for power But I would worry if I were you, you're not going to half the life of you engine, it's still down to how you drive it.

The thing I notice with manifolds is the engine runs smoother, it doesn't always make more power , reason being the manifold is not the biggest restriction there, it's still the turbo, 95%+ of the backpressure is created by the turbo's turbine and turbine housing.

Well back to squere 1....it comes down to this, it doesn't help I get 10 cubic feet of cold air in but I am only able to get 5 cubic feet out....

As for the driving style....I'll have to seriosly start to convert to granny driving, I am punishing the Ca a bit....not as bad as many others but she is still hurting....

ye, but you get more out now with the larger turbine housing, so you'll be fine.

Yep there are a number of thing done to my motor that have improved flow, The Turbo is just one of them.

But I must thank Hennie for all is input and help with that Motor of mine.

Also the Ca18det head will flow to over 300 hp with stock cams

after the rebuild and the "new thingy" it'll be even better, you only need a management, hehehehe.

Yoe guys are plotting 😈

The rebuild is also getting a few tricks...

Phinx wrote:

The rebuild is also getting a few tricks...

You guys are plotting.... 😛

Gary...if I put in the Ca18 cam, should I change timing or anything?

No the timing stays the same but you wll need to get it tuned again.

Gary57 wrote:

No the timing stays the same but you wll need to get it tuned again.

Thanks...figured that about the tunning but didn't know about the timing, thanks, I am considering this move

Well since I have fitted mine the car really pulls after 4000rpm, before then it is quite flat, dont really know why. I am hoping the boost controller will sort the flatness out.