[Strokd66]

My buddy and I are amazed at how quick his 72 Camaro runs for what it is. curious to see what everyones opinions are...here it is...
72 camaro 3530lbs with driver
468BBC
Th350 with TCI street fighter converter
3.42 gear 28" tall tire
Ported oval 049 castings that have a max intake flow of 300cfm @.600
Compression ratio is 9.5:1
Cam is comp solid lifter....248@.050....595 lift part #11-219-4
Victor Jr intake with 1" spacer and proform 850 main body
hooker super comps 2 1/8"
This car ran 11.0@122mph with open headers with collector extensions

[Holey Moley 64]

that's normal.

[wotr]

Originally Posted by Strokd66

My buddy and I are amazed at how quick his 72 Camaro runs for what it is. curious to see what everyones opinions are...here it is...
72 camaro 3530lbs with driver
468BBC
Th350 with TCI street fighter converter
3.42 gear 28" tall tire
Ported oval 049 castings that have a max intake flow of 300cfm @.600
Compression ratio is 9.5:1
Cam is comp solid lifter....248@.050....595 lift part #11-219-4
Victor Jr intake with 1" spacer and proform 850 main body
hooker super comps 2 1/8"
This car ran 11.0@122mph with open headers with collector extensions

On the day of his run, at the track, with the density altitude he ran at,, he is making about 496 hp..

Your car , at the density altitude you ran at ,, is making appr. 50 hp more than his car.

Actually for his mph, "his et can be better with tuning". LJ

[427L88]

Well,, anyway...I think it's darn quick! 11.0 on a "street fighter" converter is darn good. Nice balanced system he's got there! Glad to see the big pipes arent hurting it much, if at all. It's enough cam for wee bit mo' gear too.

[mr 4 speed]

nothing fancy there,just a well thought out combo and some good cylinder head work.
That 122 MPH is good for a 10.9X ET with a better 60 ft.

[JOHN WILSON]

Originally Posted by Holey Moley 64

that's normal.

X2.

11.oh is a little slack for 122mph, but not unexpected given the converter, 2.125" headers, intake, and gear. There's probably another 2-3 tenths in the headers, converter, intake, and gear. But very respectable as it sits.

[Rmchevelle]

Well, gotta' say, I see that as a standout performer especially considering all the under performing, aluminum headed, solid roller cammed BBC combos that can barely get into the high 11's that I see. I think occasionally someone puts a combo together that just flat works. Stick a better converter in there and it's all over!!!

That cam has been around for 30 yrs. and I don't ever, ever remember seeing anyone run a 10 sec. (a tick away in this case) E.T. with it. The other curious thing is that most guys typically would have put a 4.11 or stiffer gear with that cam and intake. Seeing how well this combo performs I bet a 4.11 gear would ruin it!

[wotr]

Originally Posted by Rmchevelle

Well, gotta' say, I see that as a standout performer especially considering all the under performing, aluminum headed, solid roller cammed BBC combos that can barely get into the high 11's that I see. I think occasionally someone puts a combo together that just flat works. Stick a better converter in there and it's all over!!!

That cam has been around for 30 yrs. and I don't ever, ever remember seeing anyone run a 10 sec. (a tick away in this case) E.T. with it. The other curious thing is that most guys typically would have put a 4.11 or stiffer gear with that cam and intake. Seeing how well this combo performs I bet a 4.11 gear would ruin it!

You always seem to have accurate observations. LJ

[Rmchevelle]

Thanks, LJ. I love the combos that do more with less!

[ShouldntBeHere]

Originally Posted by Rmchevelle

Well, gotta' say, I see that as a standout performer especially considering all the under performing, aluminum headed, solid roller cammed BBC combos that can barely get into the high 11's that I see. I think occasionally someone puts a combo together that just flat works. Stick a better converter in there and it's all over!!!

That cam has been around for 30 yrs. and I don't ever, ever remember seeing anyone run a 10 sec. (a tick away in this case) E.T. with it. The other curious thing is that most guys typically would have put a 4.11 or stiffer gear with that cam and intake. Seeing how well this combo performs I bet a 4.11 gear would ruin it!

+1

I'd say its running right where it should be, maybe a tenth or two off on the ET for the MPH but....

You're right, these days when there is so many under performing cars running, its more rare that you see one that runs well with with less then cars that have a lot more and don't run as well.

Congrats to the OP.... 10s are a slightly better 60' away.

[ratss454]

thanks for all the opinions about my car! i guess i was hoping to hear an explanation that made sense, but it seems like there is no logical reason why it runs so good. i feel lucky that i didnt get thrown off the track for lack of safety equipment.
i know that i am leaving some et in the first 60', i am leaning towards a change to 3.73s over the winter. the car is very mild mannerd, and i put a ton of street miles on it.
i wish i had the flow numbers from the flow bench for the entire lift range. maybe the low lift numbers were way better than i remember. the owner of the flow bench mentioned he had done a set of 049s for his drag car and said they worked like magic! he swaped them for a set of early brodix rectangle ports and the car never went as good. maybe its all hearsay, but now i am begining to wonder...

[fabio]

Originally Posted by ratss454

thanks for all the opinions about my car! i guess i was hoping to hear an explanation that made sense, but it seems like there is no logical reason why it runs so good. i feel lucky that i didnt get thrown off the track for lack of safety equipment.
i know that i am leaving some et in the first 60', i am leaning towards a change to 3.73s over the winter. the car is very mild mannerd, and i put a ton of street miles on it.
i wish i had the flow numbers from the flow bench for the entire lift range. maybe the low lift numbers were way better than i remember. the owner of the flow bench mentioned he had done a set of 049s for his drag car and said they worked like magic! he swaped them for a set of early brodix rectangle ports and the car never went as good. maybe its all hearsay, but now i am begining to wonder...

in my opinion the change is gears is not worth the money, time, or hassle for the little et change. If you drive the car those gears are perfect for highway use. Sweet setup btw.

[ratss454]

i do like the gear as far as highway cruising, but i should give some more background about the dif. its a 8.5 10 bolt with original gears and posi unit. i have replaced all the bearings, installed moser axles, and have a summit dif cover with bearing preloads. the posi is in need of a rebuild, and the gears were looking worn 2 years ago when i had the cover off last. i have put about 10000 miles and 30 dragstrip passes since then. besides , most of my friends dont like cruising 75 on the highway, so i geuss ill join the crowd at 65.

[wotr]

Originally Posted by ratss454

thanks for all the opinions about my car! i guess i was hoping to hear an explanation that made sense, but it seems like there is no logical reason why it runs so good. i feel lucky that i didnt get thrown off the track for lack of safety equipment.
i know that i am leaving some et in the first 60', i am leaning towards a change to 3.73s over the winter. the car is very mild mannerd, and i put a ton of street miles on it.
i wish i had the flow numbers from the flow bench for the entire lift range. maybe the low lift numbers were way better than i remember. the owner of the flow bench mentioned he had done a set of 049s for his drag car and said they worked like magic! he swaped them for a set of early brodix rectangle ports and the car never went as good. maybe its all hearsay, but now i am begining to wonder...

What was the density altitude on that run? If you don't know , what was the time of day, temperature, humidity, and elevation of the track? LJ

[ratss454]

first pass of the day: 11.148 @ 121.86mph 1.705 60'
11:58am 55deg sunny

2nd pass: 11.060 @ 122.02mph 1.642 60' 2:16pm 60deg sunny

3rd pass: 11.098 @ 121.87mph 1.700 60' 6:09pm 55deg dusk

the track was newengland dragway eppin newhampshire. im not sure of the density or altitude that day. if i had to geuss it would be near perfect conditions. i would almost geuss i was jetted a little to lean for the temp. my best 1/8th mph 99.18, with the same jets i had run 96mph at 90deg and humid.