jimmy2s83

I am looking at a Camaro that the owner has listed a quarter mile time of mid 10s. Here is what I know.

Engine is just over 500HP
Trans is a TH350 with a 2500 Stall
Rear is 3.73 Ratio.
Car is not stripped. All interior is still there.
No cage or subframe connectors.
Motor is a 350 bored to 355.
oversized cam. Don't remember exact numbers.
Carb is a 650cfm with vacuum secondaries.

I am wondering what the guys thoughts on this forum are. Mid 10s just seem a bit low for a car without more major modifications. He said he only ran it 2 times because it obviously would need reinforcements.

He has a shop that builds engines so I am thinking he knows what he is talking about but just seems like more would be required to get that low.

Whats your thoughts?

Jim85IROC

iTrader: (2)

Doesn't add up. It sounds like a mild motor, with a mild carb that can absolutely NOT deliver the ~600+ horsepower necessary to push a stock weight, stock suspension thirdgen into the mid 10 second range. Likewise, a th350 with a mild converter isn't what a 10 second car has. It's what a normal street car with a mild motor has. This car sounds like a run of the mill 300 horsepower cruiser.

MY-92-RS

iTrader: (3)

I am running a 0.40 over sbc ported 487x corvette heads , edlelbrock cam Mighty Demon 750 race carb. and 150 shot nos .. made best of 441 hp on the tires thats over 500 at the crank!! in a full body car with a cage and working A/C only good for mid elevens !!!

so you do the math ... just don't add up at all !!!

Orr89RocZ

iTrader: (20)

How big a shot?

That wouldnt go 10's in a 1/4 if it fell off a cliff. Find out exact build details. Carb and stall just seem entirely too small/too low for the type of power and 60' needed to crack a 10 pass.

bestracing

If the horse power is accurate and just using that info then I can see it running 10's. However some things on the list are not adding up. Was he running nitrous on this set-up?


To run times close to that with our 67 Camaro here's what we had.

Car weighed 3100 with driver.
8pt cage with subframe connectors welded in
Stock style suspension, Moroso light front springs, drag shocks, traction bars, welded axles and spool.
stock wheel wells and still had the front inner fenders installed
4.56:1 ring and pinion gear
28x10x15 slicks
PG trans
5500 Coan stall

Motor
350 bored .030 over (355)
TRW forged dome pistons
solid roller cam (lift was over .600 but I don't recall the exact numbers. It's been 15 years since we've ran that motor)
Dart aluminum heads custom ported, 2.08/1.60 valves, 64cc combustion chambers
Weiand Team-G intake ports matched to heads (got the heads and intake combo from a Super Gas competitor, 9.90 index)
Holley 800 DP (could probably have used a 750)
~12:1 compression

60' - 1.56
1320' - 10.8's mostly @ 121mph

**EDIT**
You guys posted while I was typing mine out but that is what I was thinking as well.

Orr89RocZ

iTrader: (20)

Your car has the stall, gear, carb, weight, etc i would expect a 355 powered car to have to run 10's. lol any big cam that can make 500 hp will be a dog with 2500 stall. 1.8 60's wont cut mid 10's on motor. Now a big shot may but that wasnt mentioned

FRMULA88

You need at least 600+ flywheel horsepower to run in the 10s with a 3rd gen f-body.

My 383 engine made 465 HP and that was good for 12.16 @ 111 mph
A true 500 HP engine will be in the high 11s..

10.5s as advertised and described is just seller's BS. He is obviously not a racer and has no clue what it takes to run that # in the 1/4 mile.

He ran the car twice?! really ? Ask him if you can see the 2 time slips, THEN when the excuses start call him out on his BS..

cuisinartvette

Hes full of dogchit period not possible.

Good thing dreams are for free huh lol.


It takes some real power to run a 10.50

midias

Think about it this way a brand new Z06 with 505hp a ton less weight and a decent transmission does not run 10s

jimmy2s83

Thanks for all the replies!

You have confirmed my suspicions. He did reveal that NOS was setup to be able to run 120 shot but claimed he only ran a 25 shot.

I'm thinking if there is a time slip it may have been the full 120. I'm going to go look at the car and here it run.

The only things I forgot to mention were the car is running full length headers (open for drag). And it has Roller tip rockers and 2.02 1.6 valves.

I'll still consider the car if it sounds and looks good. I didn't need a 10.5 car but if its a healthy engine that can be around a low 12 high 11 I'd be happy.

If its a mild built 300HP engine as some suspected I would pass.

Thanks again TGO!

Orr89RocZ

iTrader: (20)

Actually they have

InfernalVortex

iTrader: (4)

A 350 with 500hp is going to be an awful street car unless it's got nitrous or a turbo/super charger. That said, I agree with the other guys, it doesn't sound like it has 500hp judging by the engine description. If it's a 350 it'll be a better car if it's 300~hp. A 300hp 350 is a good 350, most of the ones that people throw together in their backyard using 70s parts dont make anywhere near that power.

That said if he has a 10.5 second timeslip and you know he has nitrous on the car I would imagine he sprayed a TON of it.

jimmy2s83

I'm not wanting the camaro for an everyday driver. Besides the engine, the car itself is in great condition. I've driven a 300HP crate 350 and while it was fun and as said a great combo for a driver thats not what I would use this one for. It would be a "have fun" car. I'd also like to run it at a local drag strip for a fun day. Nothing competive just something to blow off some steam. Obviously install a mild cage, and connect subframes. Not sure about the brakes on it but those would at least be upgraded to 4th gen disc brakes at the minimum.

I really felt the times given were off and wanted to make sure I wasn't missing something by what the engine had done to it. The heads as far as I can tell are the only thing not new on the engine. I've driven enough SBC camaros to know if its healthy and for me so even if its not a 10.5 car I'm still interested.
I'll keep you posted as to what happens. May go see it Saturday.

Also I have a good set of World Products heads that would likely be better than the 73 Corvette heads on it. Also a Holley Street Avenger 670 DP.

Thanks again guys!

cuisinartvette

73 vette heads this gets even better. those were puke heads
I bet it may be a 13 sec car without nitrous at best.
25 shot...lol he just doesnt stop.

DeltaElite121

Why would you bother going to see someone's stuff when it's obvious they're blatantly lying? That's asking to get burned.. 500 HP will run high 10's in a well optimized thirdgen. That car is absolutely nowhere near 500 hp OR optimized.

Another seller trying to make bank off a sucker willing to believe anything.

GTA matt

iTrader: (1)

Lol I just spit on my screen. Are we talking 1/8 mile, or...

jimmy2s83

Its not that far from me and the car itself is in good condition. If I don't think its worth it then I'll keep looking. I don't need a 10.5 car. Honestly a 12 or less would be sufficient. If this one doesn't feel right I walk. One thing I have learned in buying and selling cars is sometimes you can grab a good deal when someone describes something terrible. There is always a chance the car was actually built by someone else and this guy just doesn't know how to describe the engine. Likely he is just exaggerating to get a sale but doesn't hurt to go look at it.

bestracing

Yes they were. Back in the mid 80's we bought a 73 corvette motor from the bone yard and put it into my dad's 70 Z28. It was better than the 76 350 that was in there but that's not saying much since that was a puny SMOG motor to begin with. Used the same cam in both motors.

When I tore the motor down, many years later, both heads had at least one cracked seat that we saw without magnafluxing them. When I researched the casting number is when I found out that they are prone to cracking.

cuisinartvette

Remember those days. Everyone that wanted to sell their car advertised "Vette motor" like it was something special lol. Most of them were smogged down 8.5:1 station wagon motors that couldnt get out of their own way. My old 73 Stingray had to be one of the doggiest cars I ever owned a stock tpi car would have crushed it lol. The L82 was a pig too. Didnt have a lot of options back then though like today.