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119 Posts
again, a load bearing dyno will take all of that into account.
The Flashpro Calibrations/Datalogs Thread
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1,812 Posts
A modern load bearing dyno is the best place to custom tune any car.
Tuning in a controlled, repeatable, safe, shop environment is superior to trying to tune on the street.
It is way too difficult, too awkward, too dangerous, too many variables to tune on the street.
A loading dyno can step up loads on the engine, can hold a load for longer period of time.
Data analysis is always better in a shop than on the side of a road.
Many more reasons also..
Tuning in a controlled, repeatable, safe, shop environment is superior to trying to tune on the street.
It is way too difficult, too awkward, too dangerous, too many variables to tune on the street.
A loading dyno can step up loads on the engine, can hold a load for longer period of time.
Data analysis is always better in a shop than on the side of a road.
Many more reasons also..
That was what I didn't understand. I assumed the rollers were a static load for any and all vehicles. But if the load can be controlled, then yes I would agree that a dyno tune is superior to a street tune.
With that said, I assume there are dynos that are better than others, in say software to control those factors. Or are they all pretty much the same? Is there any model dyno that you would recommend vs. another?
Most of my experience came from the late 80s with my brothers Grand National. We tested and tuned at the track. Also had help from a friend, who happened to be into drag racing and trained all the head mechanics @ GM at the time. We obviously were limited with software, but that was also before OBD, when you could play more.
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not all dynos out there are load bearing.
So I guess then my original thesis is semi-correct. Street tuning (Ie, take data logged from the street), and use it as a guide VS. a non-load bearing dyno, could be a feasible argument for street vs. dyno- correct?
But best case is a load bearing dyno, set to your car specifics. In that case, which dyno Mfr. or Models can do that?
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1,812 Posts
If there is a dyno/tuning shop in your area, I would recommend that you stop by & talk to the techs there & nicely ask if you can sit in on a couple of dyno tuning sessions.
You sound like you are interested in engine theory & engine performance theory.
Some real world experience will be fun & make for a very good learning experience.
Thanks for the tip, I will try to locate one. Had lots of experience with mt brothers Grand National in the late 80's. Lots of trial and error with that one, some goofy as well. We tried to cool down the intake temp by running the fuel line through a box, filled it with dry ice and a mixture of alcohol and antifreeze. Premise was that the glycol mix would allow the mixture to go below freezing with the dry ice. But we found the dry ice got down to it's own stable temp in the mix and stopped trying to cool it down. so we tried it at the track and they kicked us off because we were "Leaking" stuff onto the track. Which was just the dry ice vapor falling to the ground. Car still running today, now in the mid to low 10's I believe. Always fun to try new stuff.
Since I have been looking at those IM's, can you say which one you like better? I want the low end torque, not looking so much for high end.
TIA!
Can you recommend any good books that can help us TSX(ers)? I have looked around, and cannot find too much that appears relevant to an 08' TSX, and the abilities of flash pro. I have asked different people, and they all say the same thing. Educate yourself, but cannot offer up any good resources. Can you suggest anything?
Thanks.
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Theres nothing wrong with an "E-tune". Most of us daily our TSX and in that case a PROPER E-tune is best if you cant afford the countless hours of a tuner sitting with you as you drive around.
Should you go to the drag strip with an E tune and rip all day, no lol. But for someone who dds there car its fine.
Personally I would do both, I got my car dynod did a little bit of tuning on the dyno took my data logs home and tuned some more on the street. Than took many dd data logs and sent them out to get a look at. This process happens many times and in the end you get the best of both worlds.
You cant just smack a car on the dyno and expect it to run on the street, tuning is alot of $$$$ especially street tuning. Plus most guys here arent running boost, and if they are its not much. My own .02 anyways, I do both car runs great, perfect AFs all the time and I never ever knock.
EDIT: In the end an E-tune is better than the basemap hondata gives....At least an E-tune is tailored to your specific car. If your going to borrow a tune from someone you better be looking at the sensors and making sure you tweak it to your car.
Should you go to the drag strip with an E tune and rip all day, no lol. But for someone who dds there car its fine.
Personally I would do both, I got my car dynod did a little bit of tuning on the dyno took my data logs home and tuned some more on the street. Than took many dd data logs and sent them out to get a look at. This process happens many times and in the end you get the best of both worlds.
You cant just smack a car on the dyno and expect it to run on the street, tuning is alot of $$$$ especially street tuning. Plus most guys here arent running boost, and if they are its not much. My own .02 anyways, I do both car runs great, perfect AFs all the time and I never ever knock.
EDIT: In the end an E-tune is better than the basemap hondata gives....At least an E-tune is tailored to your specific car. If your going to borrow a tune from someone you better be looking at the sensors and making sure you tweak it to your car.
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5 Posts
After running the RRC for almost exactly one year, I decided to pull it off and re-install the RBB. I just couldn't get the same drive-ability and low-mid torque with the RRC. This is after full dyno tuning and lots of adjustments in cam angle and ignition at part and full throttle.
The RRC is no doubt a great manifold but with the supporting modifications I have, it just didn't perform as well. Generally speaking the power under the curve just felt better/stronger with the RBB.
etunes aren't a way to roll? Shit i need to tell my car to go ahead and blow up since it's been tuned NOT on a dyno by myself for over 3 years.
The RRC will never compete on a stockish setup with an RBB in the midrange. There are 2 places i find the RRC to be very strong on most setups.
the low end, and the high end. The RBB was literally tuned for power from 3-5k.
If you had any kind of decent flowing setup, or higher compression pistons or cams, the RBB would be a piece of trash you'd throw in the dumpster.
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Need calibration for stock K24, 8.8:1 CR forged pistons
hey fellows!
i've had my engine rebuilt (forged pistons + rods) and looking to install the turbo stuff now. Until that i need some calibration that will be good for this stock low compression ratio engine, the base TSX 04 cal gives awful AFR at full and even part throttle, the air-fuel mixture is lean (> 17).
Maybe someone has such a calibration? Many thanks in advance!!
p.s. engine is full stock K24A2, stock intake + exhaust, only forged internals, 8.8:1 CR.
hey fellows!
i've had my engine rebuilt (forged pistons + rods) and looking to install the turbo stuff now. Until that i need some calibration that will be good for this stock low compression ratio engine, the base TSX 04 cal gives awful AFR at full and even part throttle, the air-fuel mixture is lean (> 17).
Maybe someone has such a calibration? Many thanks in advance!!
p.s. engine is full stock K24A2, stock intake + exhaust, only forged internals, 8.8:1 CR.
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258 Posts
I know this sticky has been dead for a while, but figured i'd ask anyway.
Ive been collecting some parts and i'm curious if anyone has calibrations for the following mods, or similar.
car is a 07/6mt
Injen CAI
J35 throttle body
RRC intake manifold
RBC VTC gear
CT-E header
would like something to run the car with, other than the basemap that comes with my flashpro...at least until i can take it for a dyno tune.
THANKS!
Ive been collecting some parts and i'm curious if anyone has calibrations for the following mods, or similar.
car is a 07/6mt
Injen CAI
J35 throttle body
RRC intake manifold
RBC VTC gear
CT-E header
would like something to run the car with, other than the basemap that comes with my flashpro...at least until i can take it for a dyno tune.
THANKS!
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258 Posts
NOTHING? ANYONE? lol!
PM your email and I'll drop you one of mine base calibrations
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88 Posts
Not a full tune but I wanted to share my target throttle plate table that I've found to remove any lag caused by DBW.
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722 Posts
yea i do.
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