If you look at the catcams catalogue, it says standard parts for the 421 cams.Found out that they will JUST fit
but i need uprated springs
I have to disagree, Ben. I run itbs, pistons, 422's, head work and 240 bhp 180 ftlbs. and it pulls from 2000rpmAre you daft?
I just said going wilder is waste of time......so you want the next cam wilder than 421's!!?
"hi doctor, i'm dying....what shall I do?"
"stop smoking cigarettes"
Thought it was itb'd?He has a stock engine and some nasty head, it just wont work nice.
Its all about application, there is zero point for him to do so on an RPM and efficiency limited engine. Best thing to do is concentrate on torque between 3-6.5k,
I know, no worries.
But I'm just talking about overall as you cannot compare to a stock engine as like for like. What you are trying to achieve is as effective a torque curve with as much area under the curve in the 90% use rpm range. There is no point him going for more cam if he is going to loose more than he gains.
An example, on a customers engine (not built by us) he went from 428's to 421's, gained 2bhp peak and lost everywhere else sub 6500rpm bigtime........although it held ontop peak for 500rpm more or so.
nothing nothing nothing nothing, POWER, change gear, nothing nothing nothing POWER
thats what i found with them! LOL
Ben check my graphs, I'm pretty happy with my 421
This one is stock engine (just decat and air filter)
421 CatCams fully working on stock ECU with added RS inlet mani, and the car works fine for 6 months now, engine idle at 1200rpm as you foreseen but the rest is not so bad, I'm used to it by now
Not that bad below 6000rpm
I konw i'ts not perfect, only 10HP gain, but given the fact that it was all done remotely by Henk form fastchip I say is quite an achievement.
I see what You mean.no i just found the car weird to drive with them, it gets to 6500rpm approx from memory, goes mad for 1000rpm and then you have to change up