LMAO I was just wanting to know....... Then when I found out due to the time differences there was 2 pages lol. Great job to all of you.
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Orange395w Dyno Results
- Thread starter orange395w
- Start date
atlblue98gt
Greer, SC
Great numbers. Youll be 6's in now time.
Foxman
Well-Known Member
ok so what you run?? i wont be suprised it you didnt get in the 6's considering your running to tight of a converter and mixing octanes to get the octane you want...
but great numbers and car sound good man... but i have to say... who ever said going from a auto with 387 to a manul would make it 450... makes no sense... if he was running a aod "MAYBE" but not on a C4.... a C4 really is about the same as a t5 maybe a 15 to 20HP difference.. not 70hp..
but awesome car man and i know once the octane and converter is right... i can easily see you running in the mid 6's and in the 420rwhp range...
what octane are you running? or whats your mix... there is a chart that is suppose to be pretty close in its octane mixtures!
but great numbers and car sound good man... but i have to say... who ever said going from a auto with 387 to a manul would make it 450... makes no sense... if he was running a aod "MAYBE" but not on a C4.... a C4 really is about the same as a t5 maybe a 15 to 20HP difference.. not 70hp..
but awesome car man and i know once the octane and converter is right... i can easily see you running in the mid 6's and in the 420rwhp range...
what octane are you running? or whats your mix... there is a chart that is suppose to be pretty close in its octane mixtures!
This engine before all of these changes already dynoed 401hp/418tq with a T5. That was before milling the heads and changing the cam.
I was told that there is no way to tell true HP/TQ on a chassis dyno when using an automatic. The dyno shows more of what the converter is doing than the actual HP/TQ of the engine.
For the record I'm not mixing fuels. I'm against that. I'm using 101 unleaded. My Total timing is @ 39*.
The dip in the powerband is the car pushing through the converter. I'll be switching to a smaller converter soon. This time it will actually stall to 4000-4200rpm and that should propel the car into the 6's on motor.
Foxman, I have a question for you. I'm going to send you a pm.
Foxman
Well-Known Member
that makes sense that the dyno is reading more of what the converter is doing no the rwhp... but i have never seen a 70 increase in whp switching from a auto to a manual... thats just crazy...
This is coming from people way smarter than you and me. These are racers who race for a living. People who grind cams from blocks of steel and worked for Canfield, etc. I don't argue with them and it does make a little sense.
If you have a clutch slipping on the dyno will you get a true hp reading of the car??? The answer is no. A tq converter is going to do funny things that I don't yet quite understand.
I'm not going to argue with you because I have full trust and faith in my sources. Just like my valves weren't floating, lol.
sdsubzero4
Spring Valley, CA
Good showing last night Bobby. I'll post some of my videos up later.
beejay31000
BULLWINKLE
i agree with you bobby, there is no "direct link" between the engine and transmission with an automatic. just the engine spinning some blades that are spinning fluid that spin other blades that turn the transmission. (it makes sense, seriously) but generally ive been told you loose about 25%HP through an automatic. wheras its only 12-15%in a manual, and that approx depending on the transmission set up. just some stuff smarter people than me have said
Foxman
Well-Known Member
there is a direct leak from a auto trans... its the converter... and yes it has a nartural slip... but it does have a lock up RPM... so yes... at a give rpm... it will lock up and be a direct link to the rear tires... thats why they have stall speeds
but like you said you have your sources no need to argue.. And im not saying you are wrong bobby... Just stating i have seen a couple 5 speed converted to a auto and autos converted to a 5 speed and never have i seen a 70 hp gain...
but like you said you have your sources no need to argue.. And im not saying you are wrong bobby... Just stating i have seen a couple 5 speed converted to a auto and autos converted to a 5 speed and never have i seen a 70 hp gain...
beejay31000
BULLWINKLE
you are correct on the lock up, if its functioning properly.however stall speed (coupling) and lock up are two different things. the easiest way i can discribe it are two fans facing eachother. turn one on....this represents the engine side, the other one will start to spin....this is the transmission side. the air turning the blades represents the fluid. there are other parts like the stator (tq multiplier) but this is basically how it works.
Foxman
Well-Known Member
correct... like your right up says.. when the converter locks up.... max torque is applied....
The problem when an auto is dynoed vs a manual is when the run starts. My runs were started around 4000rpm where as a manual is started way lower, so you are going to get a different hp & tq reading.
I said it, and it's not crazy when you know the same motor made 401rwhp with a manual and than it dropped to 325rwhp with an auto. that's aprox. a 19% drop. now after bobby made some changes to the motor and it now makes 387rwhp with an auto, it makes sense to add the 19% thus the 450+rwhp with a manual. and of course there are more variables, I'm just guessing, and we should also consider the track times/mph to further determine true HP.
M
Mustangcwo
Guest
Bobby, did Adam tune your car That's the guy I decided on months ago. I think Phil is taking his car there also.
PS. Dont tell Emilio, he wont understand why we are using this guy. :nonono:
PS. Dont tell Emilio, he wont understand why we are using this guy. :nonono:
I had my post deleted so I will stay out of the tuner wars. I know who and only who will tune mine........
Someone seriously deleted your post? Now this is becoming a political site? Wow.
Whatever. I dont care. Hell I didnt even know that we could not mention other tuners to people on this site. I just was throwing out all the different tuners that are out there and my post went bye bye's.
sdsubzero4
Spring Valley, CA
Wow....post got deleted?
I mean I can understand that we now have a sponsored dyno tuner on the site so maybe we should throw his name out first. Ultimately people will go to whomever they feel the most comfortable with. I AM NOT TRYING TO STIR UP ANYTHING HERE. I do not want it to sound that way. My post got deleted....Big deal to me...no!
sdsubzero4
Spring Valley, CA
Well, I'm just wondering who did it? I thought you meant you removed the post yourself.