319hp an 339tq to the fly? im so confused....ok so i made the 264hp with just bolt ons...now i have heads cams an full motor w/diffrent exhaust and everyone on every forum says when i dyno ill be in the 320-330 range to the wheels at the most....how is this?
now do that same thing to the 320 to 300 as you did to your first one
264/.85 = 310.59
288/.85 = 338.82
320rwhp equates to 376.47 fhp
so, i don't know fords so much, but you don't think that 60rwhp for cams/heads isn't very good? built motor may mean something, and may not.... did you change the compression ratio?
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
damn with 320 calculated it would be 376 an with 300 calculated it would be 352.........those are pretty good numbers....would my torque numbers be pretty wicked then?
where is the 300 coming from? i don't remember it being mentioned?
As far as your torque, that all depends on what those cams were made to do. Depending on valve events, they could make some mean torque nubmers and leave a little hp on the table, or they might rev well and make good hp, but the tq curve isn't as nice...
only way to know is to get a dyno graph
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
a mustang dyno gives true numbers because it puts a load on the rollers to simulate the friction between the weight of your car and the road.
what do you consider full bolt on's?
an intake manifold is a bolt on and you didnt mention one of those.
true, but the newer dyno jets are able to do the same thing....
The dynojet that my car was tuned on actually loaded the car a little too much... The car spooled the turbos on the dyno quicker than on the street, and therefore my tune is way to rich right before boost hits (on the street)... but that's a whole different story... just saying that apparently DynoJet has addressed this
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
at the time i did the dyno they only had the bullit intake manifold out on the market for the 2vs.a mustang dyno gives true numbers because it puts a load on the rollers to simulate the friction between the weight of your car and the road.
what do you consider full bolt on's?
an intake manifold is a bolt on and you didnt mention one of those.
the 300-320 number is coming from people on about 4 forums...i posted threads on the 4 forums i belong to an asked what they think i will make an the majority said 300-320-330hp..thats where the number came from.where is the 300 coming from? i don't remember it being mentioned?
oh i think thats very good, i was just confused on the dynoing calculations, etc....yes the compression ratio is change to a little higher than 10:5:1.so, i don't know fords so much, but you don't think that 60rwhp for cams/heads isn't very good? built motor may mean something, and may not.... did you change the compression ratio?
the cams are crower stg 2s
i believe its 9 to something for the stock compression
silly Ford owners... my engine has a CR of 9.0:1 and makes 360rwhp WITHOUT boost! lol... so buy it!
Good luck man... i'm sure you're car is running just fine. Also remember, when you go to the dyno, there are all kinds of factors in the weather that day that can skew your results... so don't get all worked up if you go on a humid 90* day and don't make crazy good numbers
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
oh i def understand the weather factors completely...a shame tho mother nature has to ruin fun....but im sure it will turn out great when i go.
what dyno did you go to bish?
That dyno reads very low (I think its out of business, so I suppose you could say "read")
My friend's stock LS2 GTO put down, iirc, 312rwhp. A friend's stage 2 SRT4 put down something like 240whp. I had nothing 2wd to dyno at the time, but would have been heart broken with the numbers I'm sure.
So if you take that as your standard for that dyno, 312rwhp/.78 = 400 crank hp. Using the same math 264rwhp/.78 = 338.5 crank hp.
Scott... thanks for the info. In my stupid opinion, any time you get over 1hp per ci at the wheels n/a, you have to spin the piss out of it and you're going to lose low-end and streetability.
Punisher... please post that original dyno graph. If you got 264hp with bolt-ons on the stock motor (on a low-reading dyno) you got some kinda freak or you transposed the last two numbers. I'm not trying to break your balls, but there are about 3 million bolt-on 2V 4.6 dyno graphs flying around the internet and most dyno ~245hp / ~290tq max. I had two 2V PI 4.6s with cai, tb, upper plenum, underdrives, o/r mid-pipe, catback and they were both 240-250hp and 285-290tq.
Now, with the heads, cams and longtubes, I think you should be about 300-320hp at the wheels. The built bottom doesn't really make hp. If it's 10/20/30/40 over, you'll pick up some cubic inches and maybe 5hp. Those forged bits don't really add more hp, they just make it stronger so you can throw some boost at it later.
Look for the next dyno day at Big Shot dyno or Hybrid. They're both not more than about an hour away from you and it's fairly cheap.
troll ill look through my big book of recipes an stuff an find the dyno graph an take a pic of it an post it...my car is .30 over.....maybe i have a factory freak lol jk. i dunno
bo- why are you using .78 for the calculation? this is the part where i get so confused on how you guys come up with the number to divide by etc.
Are you talking about only 2V cars?? I hope so, b/c thats crazy... before i built the motor in my car, it made 398/402 with just a cam/different factory head, and 7 crushed piston skirts... on 346 c.i.
Agreed... a few horses for the CR, a few for the cubes, and maybe a few if the forged internals are lighter...
312/400 = .78 .... He's using that number because his friend's LS2 GTO, which is factory rated at 400hp, made 312rwhp on the dyno... so he's saying that dyno reads a little bit low, since its extremely unlikely that the GTO lost 22% through the drivetrain. So he's saying that you should use .78 for that dyno, instead of .85 - which could possibly be a little bit off yet, b/c LSx motors are usually a little underrated the same way the 03/04 cobras were - but i don't keep up on the Goat's, so i can't be positive on that...
2015 Corvette Z06
- Shark Grey / Kalahari
- bolt-ons, tune, lots of carbon fiber (642/671 rwhp/tq)
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