Full-Force

iTrader: (11)

I have been watching alot of cammed f bodies run at the track lately and I have not been impressed in the least by the big cams over 234 @.050. Not that they are slow but just to give a comparison.

Two Z28's. Both 6 speeds. Both 4.10 gears.

One Z has patriot stage 2 5.3 heads with 228 cam. LT headers, ORY and cutout. LS6 intakE, ported TB, and lid.

Other Z has magic stick (237/242?), AFR 205 heads, Fast intake and TB (not sure if 75 or 90), lid. This car has LT headers and TSP duals.

The obvious powerhouse car makes 450+ to the wheels while the 1st Z makes about 415 to the wheels.

The big cam car has only bested the smaller cammed car by almost 1 tenth to be exact and only 1mph

different drivers yes, but both were doing a fine job imo .... both were near full weight

i have seen another big cammed car just flat out run like a dog for what it had in it .... over 240 @.050 with 4.10 gears

seems like dyno queens or track kings are the choices ... i just wish that i didnt have to try a 224 cam and then a mid 230 cam just to find out

Beast96Z

iTrader: (21)

Have you compared car weights, 60', and MPH between the 2?

Tiger2o69

iTrader: (16)

cars are different.. I trap and run what a lot of mild cam cars do w/ just bolt ons..

Richard@WCCH

iTrader: (3)

How much difference in r/w torque is there between the two at peak and under the curve?


Richard

Full-Force

iTrader: (11)

guys, i want replies dont get me wrong but read the post please

i mentioned weight, and mph ... 60' im not sure but they both hooked up fairly well and took off hard

blkZ28spt

I wouldn't sneeze on "only one mph" difference. General rule of thumb says that's 10 rwhp, with all else being equal.

LS1_PNYTAMR

iTrader: (1)

umm well first of all that tsp magic stick has no tq down low, the smaller cam will.. so it depends on the rest of there setup imo, and i know u mentioned they were the same, but the driver, driver, driver.... i would go with something from futral if ur worried.. good lowend tq and good peak power is what ur looking for..

blkZ28spt

Never a bad idea. ^^^^^

Lady Redhawk

iTrader: (6)

I believe I know of both cars his is speeking of. They ran at an 1/8 track on different days. First the 228 cammed car ran 7.36 @ 96.2 mph. he was on ET drag radials and hooked up pretty well. The second car with the magic stick ran a few days latter, his best of 7.23 @ 97.2 mph. He was on Nittos drags radials, but could not hook-up and spun though 1st. gear, but he also had a little better weather. If he hooked up, I see him running 7.0s - 7.1s that night. Both setups are pretty close. Both M6s, with heads and cam, the magic stick car also has the 90mm fast intake & TB. While the 228 cammed car has a LS6 intake and ported TB.

Lady Redhawk

iTrader: (6)

Oh yeah, the 60' times:

228 H/C: 1.61 Has 4.30 Gears

Magic Stick H/C: 1.68 Has 4:10 Gears

BAIN

iTrader: (5)

Look at the cam-only list. Not many 220 ish cams on there

99-LS1-SS

My brother has a TSP 224R cam with the PP LS6 style heads and LS6 intake with Pacesetter LT's and a Yank SS 3600 stall and he is running 11.34 @ 123 mph on nittos with no suspension work. His 1/8 times were 7.3X @ ~96 mph (I think the mph is correct).

LS1Maniac

You're also comparing 1/8 mile times. A difference of .1 in the 1/8 is a LOT bigger than a difference of .1 in the 1/4. Had the two cars run the full 1/4 I think you would see the higher hp car pulling away pretty hard. The end of the 1/8 is right where those big cams start to make their power.

blkZ28spt

Yes, I didn't realize it was a tenth/mph differene in the 1/8. Typically that seperation only grows as they get further down the track, plus the bigger cam with more pulling power will really get put to use.

Tranzor

Yep, .1 and 1 mph in the 1/8 mile is actually pretty big... wouldn't be surprised to see that grow to .3 and 3 mph by the 1/4 mile.

Also, it's all about the 60'... if your tires, suspension, and gear combo can get you down the first 60' first, you can make up for having less HP than the car in the other lane.

I've gotten better ETs in the 1/4 mile than several cars with more hp... hp tells a part of the story, not the end-all of who should come out with the best ET.

z98

You can only really compare the RWHP.

They are 35 RWHP apart.

If you tried both engines in the same car, you'd see that the 35 RWHP difference was at least a couple MPH and a couple tenths.

You are comparing apples to oranges.

Crazy Man

iTrader: (6)

I know both the cars the ss with the smaller cam is runing skinnies with prostars and micky ts all around which does help in weight also 430 gears. The ss with the magic stick wasnt hooking at all with those nittos 410 gears. The ss with the afrs and magic stick does have a very high power band If its the same one your talkin about ive raced him on the road and the track his low end isnt as nasty as the other car but when he finds the power band it pulls like crazy think it will shine on the 1/4 mile.

sevanseriesta

iTrader: (34)

I am a big cam car and have raced a heads/cam ls1 I have 4.11 gears and walked him by 3 or 3 1/2 cars and my car is running on a stock lid and stock intake. This is a proven 11.7 car I stayed pretty even with him until those higher rpm's where us big cam guys like to be. My car is running very low #'s to some guys on here I think setup does have to do with everything.

I must even compare that driver is huge as well. Lets take for instance I have headers duals gears thats it. (I even ran the stock air box) Against a heads/cam, stalled ls1. walked him by 2 or 3 cars and he never pulled back....will never understand that.

Tony Mamo @ AFR

iTrader: (13)

This thread is pretty funny...just because a car is running a "big" cam doesn't guarantee that it's making "big" power....although even the WRONG combination with more cam timing will have an easier time making decent PEAK numbers. Whats more important is how good the "big" cam combination is versus how good is the small cam combination is. Who has the best combination of parts and more time tuning and tweaking on the chassis dyno? And then factor in the weight variables, track variables, Density Altitude variables, and driving abilities and what have we got (I'm sure I've left something out)? A REAL good driver in a stock Z06 COULD run a better time than a really BAD driver in a higher HP "big" cammed combination with the wrong choice of gears, tires, and shiftpoints.

Take my combo for instance....small cam but LOTS of tuning and research to find just the RIGHT combination of parts....end result equals big power AND lots of drivability...."stock" like in fact. Would my car run faster at the track and make more power on a chassis dyno if I added 10 degrees to the intake and exhaust lobes? (still not quite in BIG territory)....You bet your *** it would. And it would show most of those gains high in the RPM band where the additional cam timing helped to fill the cylinder better when you only have tiny fractions of a second to do so. Now if I didnt shift the car at a higher RPM (and didnt know that I should), I might NOT go alot faster at the track with my bigger cammed combination because I wasn't using it effectively.

So where am I going with this....I have no idea any more but this was fun and I am posting it anyway!

Tony M.

BLUEBALLS ZZ

iTrader: (2)

there is one thing i know. very rare two cars perform alike even tho everything is the same. did a cam in my G/F car . 212 218 headers and gears and the car ran 11.90's at 117 and weighted 3500lbs. car was a runner from day 1. my car was doing that with heads and 218 224 cam and all the bolt on's and 4.10's i have come up with a theory why some cars run way better then others you have to look at where they started at and how much they picked up. that is the best way IMO