devilscamaro

Not sure if this is the best spot for this but its for fun so meh.

So ever since i pulled my v6 and droped the new 350 in my 84 camaro my import buddy has been hounding me to get it dynoed.

I'm not a huge fan of dynos i've seen more good engines have more problems on a dyno then i care to remember, but long story short i lost a bet we made and now to hold up my end im off to get it dynoed next saturday.

Now just to have a little fun i thought i would post my engine specs and have a little guessing game to what the final out come will be (im guessing 400-450 hp on engine but no idea what it will put to the ground)

(cant seem to find my build up sheet i made so i guess im gonna do this to the best of memory sorry if i leave something out and lack of part numbers)

engine is a sbc 350 4 bolt main out of an early 70's truck bored .30 over
TRW flat top pistons
forged eagle crank
edelbrock performer intake
4 barrel 750 cfm double pumper holley carb
chrome moly piston rings
street fire HEI distributor
street fire spark plug wires
cast-iron first generation vortec heads 2.02/1.60 valves
shorty headers
3inch y-pipe all the way back to flow master one in/two out muffler
700r4 transmission with shift kit
aluminum drive shaft
mild cam (if memory serves me correct it was the most street able cam i could get with out a stall converter)
stock v6 9 bolt rear end (as soon as i blow it up i have a new rear end waiting for a new home)

I believe the reason he wants me to dyno my car so bad is he beleaves his 240 hp nissan altima is faster

Well... let the guessing begin!

heff17

iTrader: (1)

Put me down for 325hp to the wheels. What do we win? ;-)

AlkyIROC

Dynos are nothing more than tuning devices. Put your car on 3 different dyno and you'll get 3 different results.

A dyno will allow you to fine tune your combination by playing with jetting and timing if you're not changing major components.

Without knowing cam specs, I can't give a guess on HP.

It doesn't matter if his nissan is faster or not. It's all about power to weight. The heavier the vehicle, the more HP it needs to go the same speed. Your V6 in a lightweight vehicle could beat it.

Your "V6 9 bolt" diff is no different than any other 9 bolt diff under a third gen. It probably has better gears in it than ones that cam out of a V8 car. There is no such thing as V6, V8 differentials other than the gear ratios.

devilscamaro

325 is a respectable guess.

while i agree dynos are used as tuneing tools, my car is tuned and even though i dislike dynos (been around them befor i even got into cars fathers speed shop had one) there also a great tool to see where your at as far as hp performance torque etc.

again sorry about the lack of information i have my complete build up sheet on my work pc i printed it out but i must have left it there and im off this whole week so i figured since its for fun any way i might as well post what i could remember.

and im more then aware my car can smoke his, i race 350z's at my local strip (his altima race edition has the same engine as a 350z and there much heavier if i remember correct) and have yet to lose to one, this really wasnt about if i was faster to be honest

as far as the stock 9 bolt diff i was told by a few people my weakest link was in fact my "v6 9 bolt" (there words) i really have zero knowledge of differentials, i was told theres a 9 bolt and a 12 bolt that came on our 3rd gens and the 9 bolt was the "weaker of the two" i have a ford 9 inch and was told there great differentials but require a bit of work to fit on our cars properly again any info you can shed on this subject would be great.

five7kid

iTrader: (14)

Both of you go to the track for a test & tune or grudge night, whatever they call it at your nearest track, run side-by-side, and find out.

devilscamaro

been trying to get him to do that for months now, he has no problem trying to provoke me on the road but he wont race me at the strip.

five7kid

iTrader: (14)

Then he pays for the dyno session.

devilscamaro

Yeah hes offered to pay for it, hes seen me first hand at the track he knows what the car can do just not sure why he wants me to dyno it so bad.

Klortho

Plus, there were no 9 bolts in any of the V6 cars,

I'll say 295 at the wheels.

AlkyIROC

Whoa whoa. Lots of disinformation there.

Third gen cars came with a 7.5" 10 bolt and a 7.75" 9 bolt. The 9 bolt was never offered with a V6 (I missed that the first time) as previously mentioned and was only available from 86-89. The 9 bolt was the performance option and is stronger than the 10 bolt but replacement and performance parts are hard to find as it's made in Australia. A 12 bolt was never offered for a third gen as a production diff and just about every third gen owner wishes GM had done it. Your 9" will unlikely fit under your car for any number of reasons without a lot of modifications. It's easier and cheaper to just buy the aftermarket housing and axle package and use cheaper readily available parts to complete it.

As for HP and torque numbers you can pull from a dyno, read this on how the numbers can be used in relation to a race.

http://www.hardtail.com/techtips/hpandtorque.html

BiGgE

iTrader: (2)

I am guessing your cam is about .480 lift and maybe 220 duration @ .050. (I wouldn't go any bigger than that with a stock converter) I had a very similar motor in a 1970 Nova for a little while. It actually dynoed right at 300 hp to the wheels. With that being said, I would guess that your car is about the same, or maybe a bit more as you are running a 700 r4.

On a side note, you do not have chrome moly rings in your car. There is no such thing as a chrome moly ring. They are moly rings, and you likely have only 1. Your other compression ring is likely iron. Not trying to be rude or anything, but just thought you should know.

devilscamaro

Sorry for the late update wasnt able to get it dynoed due to the shop i was going to get it done at was busy all day so after waiting a few hours we gave up for the day.

and as far as the chrome-moly rings go i have the box in my garage the brand is sealed power and states right on the box "Chrome-Moly" im not trying to argue but when some one tells me something doesnt exist and yet im looking right at it

Any way they are molybdenum rings that are chrome plated for an easier break in heres a link if you wanna to look for your self.

http://www.federal-mogul.com/en/Afte...s/Moly-Chrome/

BiGgE

iTrader: (2)

You are correct, you have chrome plated moly rings. This is however, not a chrome-moly ring. There is no such thing as a chrome-moly ring. Chrome-moly (which is actually Chrom-moly) is a material often used to make roll cages and what not. It has a higher tensile strength than mild steel, but it is an alloy of steel which includes Chromium (thus Chrom-moly). Again, it is a common mistake and I apologize if I am coming across as rude. Not trying to argue, just thought you would like to know.