i was wondering if i should of picked a bigger cam than what i have right now which is comp cams 294S(294 duration .525 lift).I love running solid cams cause i think hydraulics are crap.i was wondering if bigger cams= bigger power.I keep hearing stuff like oh dont over cam the engine.Are they telling the truth or they are scared.I love motors that rev 6500-8000,i dont mind changing valve springs (im not lazy).How come some people on this board run such crap compression??i for one run 13-1 which way better than the slug 10-1 and below.oh your going to have to run race gas ........so what....if u want make some serious power u gotta pay your dues.
the anti hydraulic cam
dave

 

i run 10:1 compression because i don't want to run 110 octane gas costs $2.70-$3 per gallon. Good luck keeping a motor together revving like that without spending mega bucks. Hydraulic cams for low maintenance.

have fun on the street with a combo like that.

 

Well if you want rev's and power run a solid roller. As far as the compression, I just like being able to pull up to any station and get what I need, 110 octane isn't readily available around here. But my firebird runs mid 11's NA with 10.5:1 (on slicks) and pump gas. Nitrous requires race gas but hey .

 

i dont mean to offend people so im just going to say it pump gas=wimp gas its true.My car actually more strip than street although its pretty streetable and my power brakes still work.i wouldnt mind a solid roller for now im in the solid flat tappet stage.my motor is good to 8000 my cam is good to about 6500.i still got about 1000 rpms left (leaving the remaining 500 for safety).im not afraid to push the boundaries.

 

Overcamming an engine is very common. All it means really is that you got massive lift/duration for a motor which will never use it to its full potential.....Example, my cam COMPXE284 of a car with a 250, 9.0:1, a low-rise dual plane intake, a Holley 600, 2.73 gears, a stock stall in a TH-350, no headers or duals...

Get my drift....

BTW, i have an 11.5:1......AND I HATE IT!!!!

I HAD....a solid flat-tappet in my motor, and I MISS IT
It was Crane 290A......OMG did that ever wake it up when i had my Vic JR & 750 dbl pump on it I chose the street though instead of the strip.

Good Luck.

 

heh, I've got a 294S setting in the box brand new with a set of lifters just waiting for me to get the rest of the engine parts. Here's what my setup is going to be..

355 cu.
Holley 750 mech. secondaries
Victor Jr. intake
AFR 195 heads
294S Cam
Eagle ESP rods
Weisco pistons with compression around 11:1
Hooker long tubes
haven't decided on a crank yet though.

After punching in the numbers for desktop dyno, it'll get me a bit over 500 hp peaking at 6500 rpm.

 

wimp gas? more like smart gas, may as well save the money if it's a street car. on the track, it's another story, i run 110 mixed with 93 octane premium in my 14:1 spitfire. Even 14:1 compression doesn't require 110 octane, it just costs horsepower and money.

So your "wimp gas" could probably give you some horsepower. too much octane is bad, the higher the octane, the slower the fuel burns. So stop trying to be a hardass.

 

If you don't mean to offend people you aren't supposed to say it, although I doubt many are offended by anothers opinion. Most of the people here use their camaros as daily drivers and need them to be somewhat reliable, which makes them use "wimp" gas and hydraulic roller cams. If you have a question, always state your intent. Not everyone wants a full blown race car, and most would assume you're driving it on the street as well.

 

since when does octane burn slower.octance is measurement of resistance to detonation.I say go all out or go home.Today we got emisions as u well know.the only thing we could do on the street is nitrous or supercharging(vortech,paxton,etc).And thats only good for 350-400hp.above that race gas is mandatory!!!oh i forgot some of u like to lower compression to a ridicules 8-1 and run like 10 pounds of boost(total dog).IM not trying to be a hard *** i only speak the truth.

 

Daverr,
You obviously don't know what the F**K your talking about. Are you one of these damn 16 punka** kids who are trying to get some much needed attention. Go to Chucky Cheeses or something. If you know everything then why are you asking such a dumb question. If you think I'm wrong then call me out!!!! Hard a**.......not hardly. Wimp gas. Yeah well I'll use my wimp gas and 10 pounds of boost and walk the dog all over you. And yes It will get put on very soon. If you got anymore stupid remarks or questions then feel free to email me at mccleanb1@winthop.edu.

 

no4, i like that response.

 

I second that.

 

ok mr daverr
I will explain this to you nice and easy


octane is a measurement on how resistant a fuel is to detonation....

now what is detonation?
when the pressure inside your combustion chamber comes to a point that it is trying to force the piston back down into the cyl while it is still doing the compression stroke

now how to you stop that?
you get the gas to burn (come on say it with me now) s-l-o-w-e-r

I know you are going to ask now how does that stop detonation

well now let mr james explain that to you

when your fuel burns slower it will increase the pressure inside your cyl at a slower rate.... so it gives the piston more time to go past TDC this way you are putting power on the (say this with me now also) power stroke


now see since higher octane burns slower it will tend to give you less power then a low octane fuel, with the same setup since the fuel will stll be burning after it leaves your cyl, while a low octane setup will be able to get most of its energy out before it leaves the cyl

now you run a motor with 10:1 and 10psi on there
yes you need the higher octane cause the lower one will give you detonation and that will kill power. I admit that
but you will still want to use the lowest octane you can without pinging.



now as for what cam you want to run
I think it would be best for you to first off tell what head you are running and even what type of intake system you have. that would make quite the difference as to what cam you want, cause yes you can overcam a car. some heads flow really good but if you there is a point where you hit more lift and it will flow LESS.


now most ppl here like to drive there car on the street and since they do not have momma and dadda to go buy them gas as you must they like to try to keep things a little easier to pay for
now does that mean they run slow? not at all. but they are going to pay less for there street machine then you are.


also I love this
if you don't want to go all out then go home you said?

here is a quote from you

https://www.thirdgen.org/techbb2/sho...threadid=35963
my little wankel does better then that..hehe only 80 cid does better then that
though to be honest I think most everyone TPI guy here does better then that.... kinda sad

also another quote of you going all out making a sweet *** motor

https://www.thirdgen.org/techbb2/sho...threadid=72825

gotta love how your sweet little motor is making LESS power then a STOCK 350 TPI



and another thing to prove how much of a smart one you arenow why don't we all go floor it in reverse and see how far that gets us
no wonder you don't have a T5 anymore


now you can do one of two things

get all pissed off at me and show how much of a real man ou are by resorting to all the childish name calling or saying I own an import blah blah blah and I should get off the boards.


or take it like a man, say that you might not know everything about cars, be nice and respectful and we can all get along.

your choice

whatever you do don't touch my wankel

:hail: wankel boy that's me

 

rofl rx7

 

LMFAO RX7!!! Oh man that was great. I'm in damn tears.

 

Too funny:

HAHAHA... I bet you get 8-10 MPG with that huge cam/carb setup. I do almost as well with my wimpy 9.6:1 compression and tiny stock cam/ stock heads.

What's funny is one day you will street race on a side of town you aren't familiar with...then look down and realize you are low on gas. What then, Mr Smartypants? Let me give you a hint - it's called a towtruck...'cuz gas stations with race fuel aren't on every corner these days.

[/rant mode off]

 

rx7, you have just earned my respect with those quotes. daverr, what can you possibly say to your own quotes? plead temporary insanity? I'm thinking he'll probably have to change his name.
:hail:

 

This is more entertaining than 200 pissed off monkeys flinging poo at each other.

 

oh my gosh I just noticed that 91-RED-WS6 in his car that has some heavy mods (flowmaster muffs) thta he is pulling about the same as your really highly modified car.

and he can prolly get away with using that "wimp" gas also

Mods: Flowmaster
208.4 RWHP 302.4 RWTQ
Best ET: 14.37@95mph
107,000 miles and counting...

 

rx7.......you'd better watch out..This guy's not afraid to "push the boundaries"

No seriously don't be so hard on Dale Jr. That's got to be a really old Nascar engine to "only" run 8000 rpm

Oh sheet...there I went and done it....pushed that boundary again LOL

 

Do you think he needs a bigger cam?????????????
Or mabe he should up the compression some more????????????

I'm sure he has a FEW more ponies in there somewhere.

ROFLMAO

Come on boys, can we help the lad out a bit.

I have an idea, mill the heads for 25-1 compression and run Diesel
fuel, that should do the trick with a bigger cam.

 

Wow, poor guy. Scared him away I guess. Nice work RX7

 

ok now to help the guy out a little
want to post your dyno graph for us?
also what kind of heads are you running
and I saw that you are running 12.x a/f

you will want to lean that out to make more power

maybe something in the 13.x range

give us some more info about what you are running and we can tell you where to go from there

maybe start by giving us what you have in your motort

 

damn that was fun, but i do feel a bit dumber for reading some of it.