B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
#76
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
In my opinion, I don't see any gains to be had once you found peak torque/MBT on the dyno. The engine is tuned for max power at all load points at all rpms. In regards to ignition timing Mainly..
But I think you have more experience than me So hopefully you can teach me something new.
Do you have any pictures of any notching of the block or girdle if it was required with your 95mm crank?
But I think you have more experience than me So hopefully you can teach me something new.
Do you have any pictures of any notching of the block or girdle if it was required with your 95mm crank?
The dyno will provide me the timing curve...
but to me the Dyno Can't give the exact load that the engine will have on the road or track, How the dyno can know the weight of the car ?
how the dyno can know the exact time that this motor wil take to go from 6000rpm till 8000 ?
There is a rule on the dyno to raise 1000rpm on a determinate time
Its possible that with 800whp that rule is good but maybe not with 200whp.
Is 2 same car one on 200whp and the other 800whp will both raise the rpm in the same time on 4th gear ?? On the dyno yess
But on the road ??? the engine that only have 200whp might be a lill to high on ignition
Also in 1st gear the engine is raising the rpm faster
the ignition timing per gear should also be tuned,
as the 1st gear raise faster than the 4th one.
I dont have pictures of notching of the block, But i did some just where the rods are close to the block, but i guess that some smaller rod end might fit without grinding
#77
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
Dyno Ignition tune Vs street tune
FNP Tuned | Street Tune VS Dyno Tune
Dyno's run lower load, requiring street tuning after initial calibration
Ignition Timing affect power - Data by 4 Gas EC997a Eddy Current Dynamometer
ignition timing settings as shown on a dj dyno are incorrect for best power on the track or road
FNP Tuned | Street Tune VS Dyno Tune
Dyno's run lower load, requiring street tuning after initial calibration
Ignition Timing affect power - Data by 4 Gas EC997a Eddy Current Dynamometer
ignition timing settings as shown on a dj dyno are incorrect for best power on the track or road
#78
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
index
•Dynojet is an inertia-based dyno. The dyno measures hp by measuring how fast the motor accelerates a drum or a pair of drums (commonly referred to as rollers). The dynojet is an effective tool, but is limited in that it will not accurately simulate real world loads. The load the dynojet produces on the car will differ from the real world and increases linearly. A good example of this is the length of time the car accelerated through a gear on the dyno compared to the real world. From 2000-8000 RPM the dyno might take 3-4 seconds, but in the real world the time between 2000-8000 RPM might be 8 or 9 seconds. Ideally we would prefer a device that loads the engine the same as the real world. The peak whp number reported by the Dynojet usually very close to those determined from whp calculated from ¼ mile mph
•Dynojet is an inertia-based dyno. The dyno measures hp by measuring how fast the motor accelerates a drum or a pair of drums (commonly referred to as rollers). The dynojet is an effective tool, but is limited in that it will not accurately simulate real world loads. The load the dynojet produces on the car will differ from the real world and increases linearly. A good example of this is the length of time the car accelerated through a gear on the dyno compared to the real world. From 2000-8000 RPM the dyno might take 3-4 seconds, but in the real world the time between 2000-8000 RPM might be 8 or 9 seconds. Ideally we would prefer a device that loads the engine the same as the real world. The peak whp number reported by the Dynojet usually very close to those determined from whp calculated from ¼ mile mph
#79
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
Maybe i do look as i have bad attitude
but I am not doing it for this.
and maybe some parts that i use are not the good one for some people,
But look at the results and see what it can be on what i am using.
When i look mad, its probably when i ear talk about 74mm TB that are the only way to go for 80% of people that you will ask the question: What throttle size should i use to make 250Whp ?
but I am not doing it for this.
and maybe some parts that i use are not the good one for some people,
But look at the results and see what it can be on what i am using.
When i look mad, its probably when i ear talk about 74mm TB that are the only way to go for 80% of people that you will ask the question: What throttle size should i use to make 250Whp ?
Last edited by Frankacura; 08-08-2015 at 07:30 AM.
#82
Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
I believe that's where the mustang dyno comes in.
dynojet I've read is just for number displays on the internet.
Tuning should be done on a mustang dyno.
dynojet I've read is just for number displays on the internet.
Tuning should be done on a mustang dyno.
#83
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
I have dyno'd a few of my cars on a few different dynos and agree with that statement. Another good tuning dyno that is a heart breaker for the dyno queens in the Mainline dyno.
#84
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
I have always believed that a load bearing dyno is the way to go when it comes to dyno tuning, NOT inertia dynos since you can't hold the rpms at specific load ranges.
I could see the need to maybe tweak the tune a little bit if your staying in higher loads longer than normal to simulate wind resistance/drag. Like doing top speed runs ..
But isn't load gonna be the same whether your on a Dyno, track, driving uphill, towing a trailer, or whatever?
The ecu only looks at load and rpm primarily for fuel/ ignition, correct? With some temperature compensation too of course.
I could see the need to maybe tweak the tune a little bit if your staying in higher loads longer than normal to simulate wind resistance/drag. Like doing top speed runs ..
But isn't load gonna be the same whether your on a Dyno, track, driving uphill, towing a trailer, or whatever?
The ecu only looks at load and rpm primarily for fuel/ ignition, correct? With some temperature compensation too of course.
#85
Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
You never tryed the brian crower ligthweigth "27 pounds" 95mm or inlinepro 95mm "32 pounds " crank? What is the deference betwen eagle,BC and inlinepro cranks? They offer many kind of series, which one is the best on quality and desing to support 320whp + b series?also aluminium rods+ligthweigth crank or steel rods + standar weigth 95mm crank ?
#86
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
You never tryed the brian crower ligthweigth "27 pounds" 95mm or inlinepro 95mm "32 pounds " crank? What is the deference betwen eagle,BC and inlinepro cranks? They offer many kind of series, which one is the best on quality and desing to support 320whp + b series?also aluminium rods+ligthweigth crank or steel rods + standar weigth 95mm crank ?
#87
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
So big mouth.. Let us know wich cams make the most torque
why you did not finish my post ?? as you know everyting... ????
I Guess your still sailing 75MM throttle for those people on 182Whp lol
why you did not finish my post ?? as you know everyting... ????
I Guess your still sailing 75MM throttle for those people on 182Whp lol
#88
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
Came back 2 years later just to talk smack? Dang man. Did you ever get any dyno sheets on the engine? I was kinda hoping to see them, curious about what it made on the 62mm TB.
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#92
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Re: B20 Vtec/GSR stroker/95mm TODA B CAMS vs Crower 62404 Non Vtec Cams
For those of you let down by this thread and the complete lack of tech.... here's someone who doesn't suck.
https://honda-tech.com/forums/all-mo...50whp-3237972/
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