hi all..

just wanted to make sure:

i´m building a 396 with 210 AFR heads, and a few other goodies, and my cam decision is 275/224 .605 in, 281/230 .622 ex 113LSA 110ICL

is this a good cam for a daily driver-weekend warrier?

i hope so, since its already at home

some forum members put down good numbers!!

regards

 

That's exactly what I'm using in my 385. You went with the same lobes (3100 series) and LSA. If your heads flow to .650 you will be fine with that cam. I'm making over 400 rwhp and 400 rwtq with it, so it's a performer as well.

I don't find it very difficult to drive and I have a McLeod Street Twin, which is difficult to launch occassionally. I bumped the idle up to 1000 rpm and it seems to like it up there. Let me know how it turns out for you.

Mike

 

compression? can't make any cam determinations without compression, so just because it works for mike, doesn't mean it will work for you!

-michael

 

With those heads I would go with something a bit larger.. honestly.

 

On my 406CI,, I used a 224/233 w/AFR-210's and changed to a 233/233 and got 35 RWHP increase

 

hi all

compression is 10.5 to 1

should i go with 230/236??

keep in mind, i want good street manners also the idle should not be too radical, and i have a SD system....

 

My 233/233 rides smooth as silk, increadibly easy to drive, my wife even loves it.

Personally I would go with a 233/236 or similar.

 

i just realized yours isn't an LTx engine. intake choice matters too, but since it's a regular sbc at 10.5:1 compression and most sbc intakes have longer runners, i would say your cam choice is too small. the intake valve closing event will make for a lot of dynamic compression, and you'll end up limiting ignition advance to artifically low levels to keep it from detonating.

on a reverse-flow cool engine with short intake runners, that small a cam would work better.

-michael

 

i will use a single plane EFI Intake, dynamic compression is about 8.2 to 1

 

I have a 10.7 to 1 comp 406 with a 230/236 603/608 114 thats with 1.6
rockers and I drove it in a funeral in the summer with the ac on with no problems.

 

I am running 230/244 with .544/.576 and love it. Now with that said our set up's are compleatly differnt other then C.I. My cam was selected with a lot of factors including Pistons, heads, and deck height. I personaly think you could have gone with a little smaller head but keep in mind I have zero experience with the TPI, Supper ram or Mini Ram intake motors. BTW what intake are you running? From what I can tell form what you have posted that cam will be fairly mild and should make a lot of low end TQ but again I am more familure with LT1/4 when it comes to fuel injection set ups.

 

well, you've done your homework. if that's true, then i think that little cam will actually work really well for you. otoh, if you go bigger, you can tighten up the lsa and keep up the dcr, and it would probably make even more power without losing anything through the middle.

-michael

 

My LT1 makes 415/417 to the rear wheel with this cam.

CR is 10.8:1, has stock heads ported by CNC, think the valves are 1.6 and 2.02 but can't remember, 1.6 RR's, long tubes, 52mm tb and a few other bolt-ons.

Car is very streetable (as would be expected) and runs like a banshee when you get on it! I can only speak from my own experience, but I am very happy with this cam.

Mike

 

i ´ll take this as a compliment, and youre right, i have cracked my head over nights, run Desktop Dyno x times, also talked with forum members´about the power their cars make, aso...

i use the accel single plane EFI with a selfmade custom plenum...

AFAIK the Accel SP should be a good match between SR and LTx or Miniram intake, also, i want a fair idle quality combined with good street manners and good power...

if you have good flowing heads, you can shorten cam duration and still make tons of power and torque..and for me, torque is more important than the last 20 hp..we have roads with lots of curves in them...

i think, the 8.2DCR should be a good match for 93octane

the problem is, that here are many people with many different uses for their cars...the cam that is perfect for one, may not be so good for another oner...

what interests me, hoe will the car/engine run with this cam, vacuum, power, torque..overall performance from a neutral standpoint

best regards

 

With your set up the car will probably drive darn near stock, untill you smash the gas. My car was built to be a daily driver and I think it is a great street motor, Nice low end TQ, good idle, perfect brake, etc... (13 pounds of vacuum)
Just to give you an idea here is my dyno sheet with quite a bit more duration and I suspect you will make a little more low end TQ them I did and my TQ curve is prety flat across the board.

 

That's very, very close to the cam I've been running for the past few years; difference being mine is ground on 114s and installed at 110. I'm running 1.5s on the intakes to keep valve lift under .600, but have 1.6s on the exhaust.

My car is a daily driver, and I mean DAILY, since it's the only one I have. In addition, I've driven it all over the country:

From Texas to Chicago, then from Chicago to Harvard to visit my daughter, then to South Carolina to visit relatives then back to Texas (about 3000 miles round trip.) Next trip this year was from Texas to Denver Colorado, then back to Texas (another 2000 plus miles). Current trip is from Texas to Chicago (900+) which is where I am now). From Chicago, I plan to drive to Phoenix in a few weeks then back to Texas.

I can get over 400 miles per fill up and the engine hasn't missed a beat in the many, many thousands of miles I've put on the cam. Idle is fine at 800 RPMs in gear with just enough lope to make most other drivers think twice; throttle response and low end torque are excellent and nary a problem with vacuum for the power brakes.

The only problem I've had was losing an alternator last year, but that had nothing to do with the engine per se.

From my experience, your cam choice will work GREAT for what you plan to do.

Jake

 

I run a 230/236 on 112 LC solid roller for emissions reasons with a 400 SR running 11/1 comp ratio. It runs very strong, but I would have run a bigger cam except I need to pass CA smog. If you don't have smog worries, I'd go a little bigger.