AJR Dyno Runs Questions

[gmane]

Are your dyno runs with all the T1R products done with or without CAT's? If so what kind of improvement can we expect when running a test pipe/CAT delete? Would you say there would be a big improvement or minimal improvement if any? any speculation on horse power increase...

Thanks guys

[AJ PwR Jr.]

All the dynos we performed were running with a stock catalytic convertor. We have dynoed the test pipe and it was and about 2whp across the band. The A/F was lean so adding some more fuel will coodinate to make more power.

[cavie187]

How lean? What was the wideband readout for a/f?

[gmane]

Hmmm what he said ^ .. and what method would you suggest to add fuel? Someone said something about the Apexi Neo? and i've also heard that if you use the neo you will need to adjust timing? Whats your take on this..?

Thanks Ben!

[diedwater]

bigger injector, then use neo safc to trim fuel?

[cavie187]

Originally Posted by diedwater

bigger injector, then use neo safc to trim fuel?

I'm pretty sure the stock injectors could solve it with e-manage.

[gmane]

Either way e-manage or neo is there do we have to take timing into consideration? or is it a minimal adjustment that might not offset the timing?

[AJ PwR Jr.]

Originally Posted by cavie187

How lean? What was the wideband readout for a/f?

After the test pipe, the A/F jumped to about 13.7-13.9 with I/H/E.

Hmmm what he said ^ .. and what method would you suggest to add fuel? Someone said something about the Apexi Neo? and i've also heard that if you use the neo you will need to adjust timing? Whats your take on this..?

Emanage Ultimate or Apexi Neo will do the work for increase or decrease fuel trim.

As for timing, Apexi Neo can't do timing so Emanage Ultimate will be the only option for now. We tried to add more timing and it helped in acceleration but not much hp number on the dyno.

I'm pretty sure the stock injectors could solve it with e-manage.

You don't need bigger injectors for NA setup L15A. The Emanage will do the magic.

[gmane]

Originally Posted by AJ PwR Jr.

After the test pipe, the A/F jumped to about 13.7-13.9 with I/H/E.



Emanage Ultimate or Apexi Neo will do the work for increase or decrease fuel trim.

As for timing, Apexi Neo can't do timing so Emanage Ultimate will be the only option for now. We tried to add more timing and it helped in acceleration but not much hp number on the dyno.



You don't need bigger injectors for NA setup L15A. The Emanage will do the magic.

Is adjusting the timing absolutely necessary?

[AJ PwR Jr.]

Originally Posted by gmane

Is adjusting the timing absolutely necessary?

Well, it depends how good of a tuning you wanted to be.

[cavie187]

Originally Posted by AJ PwR Jr.

After the test pipe, the A/F jumped to about 13.7-13.9 with I/H/E.

WOW! My car would be done for. What is normal afr for the fit?

[I Am Ray.]

Why wasnt this brought to anyones attention when buying the test pipe?
Im actually shocked youre selling the testpipe with those AFR's.

Im saddened to say Ive been running it for a year now. I have a feeling my motor wont last 100k now.

[DynamicFit]

Originally Posted by Mx6GT89

Why wasnt this brought to anyones attention when buying the test pipe?
Im actually shocked youre selling the testpipe with those AFR's.

Im saddened to say Ive been running it for a year now. I have a feeling my motor wont last 100k now.

13.7 to 13.9 AFR is pretty damn safe in my opinion, in fact you probably are making even better power than most of us if you are running an AFR close to that on a naturally aspirated motor. 12.0 A/F is something you might want if you are running a turbo or other F/I, but as you are only N/A even 13.9 A/F is pretty reasonable considering ideal combustion is 14.7.

Your motor is fine.

[kelsodeez]

isnt the test pipe "for race use only"?

[gmane]

Originally Posted by kelsodeez

isnt the test pipe "for race use only"?

Yeah if your state/country requires an emissions test. Florida used to but they don't conduct the test anymore so you can run without it (not good for the environment thou )

[kelsodeez]

well, my point being, that usually race only parts dont come with warranties and if you are racing, chances are you are going to be running some kind of engine management.

[I Am Ray.]

Originally Posted by DynamicFit

13.7 to 13.9 AFR is pretty damn safe in my opinion, in fact you probably are making even better power than most of us if you are running an AFR close to that on a naturally aspirated motor. 12.0 A/F is something you might want if you are running a turbo or other F/I, but as you are only N/A even 13.9 A/F is pretty reasonable considering ideal combustion is 14.7.

Your motor is fine.

Its not safe at all. 14.0- 15.0 AFR's is what cars run around at cruising speeds and 1/4 throttle.
To make good power and be safe in a NA car, 12.5-13.0 AFR's.

Turbo cars are suppose to run 11.0-11.5 AFRs to be safe. I have one
On race gas I keep her at 12.0-12.2 with advanced timing.

Almost any aftermarket engine piece is considered a "race part."

Honestly, I think this testpipe slowly ruined my motor. Recently, my car has been giving me shit MPG. 29-32MPG. If it sits at idle for a while when its hot out itll puff smoke if I rev it. Its only when I rev it though. And it clears right away. However, a new car should not do this.
And its blue smoke, which is burnt oil.

However, I MAY be ok due to me not having a header. I do remember headers with large runners are what make the Fit lean.

[cavie187]

Originally Posted by Mx6GT89

Its not safe at all. 14.0- 15.0 AFR's is what cars run around at cruising speeds and 1/4 throttle.

good to know. What about WOT?

Originally Posted by Mx6GT89

To make good power and be safe in (most) NA car, 12.5-13.0 AFR's.(depending on compression ratings and timing)

Turbo cars are suppose to run 11.0-11.5 AFRs to be safe.(or you need to look into timing/pcm control) I have one
Almost any aftermarket engine (or exhaust)piece is considered a "race part."

Slightly modified, and agreed.

Originally Posted by Mx6GT89

Honestly, I think this testpipe slowly ruined my motor. Recently, my car has been giving me shit MPG. 29-32MPG. If it sits at idle for a while when its hot out itll puff smoke if I rev it. Its only when I rev it though. And it clears right away. However, a new car should not do this.
And its blue smoke, which is burnt oil.

Sounds like piston rings to me...

Originally Posted by Mx6GT89

However, I MAY be ok due to me not having a header. I do remember headers with large runners are what make the Fit lean.

Disagree. Header will not make that drastic a difference on a N/A car with such a small amount of displacement. The cat-delete/test-pipe will make more if a difference than a header when matching the two up against one another (as far a cfm flow is concerned).

I hope you don't mind, but i put a couple of MY opinionated additions into your post in red.

On a side note: Mx6GT89 you may want to do a compression test on your car to be on the safe side.

As always this is just my $0.02

[I Am Ray.]

Originally Posted by cavie187

good to know. What about WOT?

Its based off my Mx-6, my dads truck, and other I have driven in with a wideband. Its normal AFR's for any car. NA and FI.

Originally Posted by cavie187

Slightly modified, and agreed.

Again, comparing it to my Mx-6. Granted the motor in my car is almost bullet proof. I dont have any real timing or fuel control. Bigger pump, injectors, EPROM, turned dist, 20psi on a 50trim, and a widebang. Hahha!

Shes still doing pretty good on the OEM motor. Compression is still fresh.

Originally Posted by cavie187

Sounds like piston rings to me...

Could be? But I didnt pay attention to it as its only done it about 3 times total. All the times I was close to my next oil change and only a puff of smoke after the car sat for a good 20min on a HOT day. I still have all the oil I put into the motor when I drain it.

Im sure my motor is fine.
I probably will do a compression test. I dont know what good itll do, WTH-word is stock compression on our cars? Hahh!

Originally Posted by cavie187

Disagree. Header will not make that drastic a difference on a N/A car with such a small amount of displacement. The cat-delete/test-pipe will make more if a difference than a header when matching the two up against one another (as far a cfm flow is concerned).

With the Fit, a header with large runners is a guarantee lean factor Its been proven many times.

[cavie187]

Originally Posted by Mx6GT89

Its based off my Mx-6, my dads truck, and other I have driven in with a wideband. Its normal AFR's for any car. NA and FI.

Right, but I was asking what the Wide Open Throttle AFR should be/is at stock for the fit. I know the compression is high so it will be likely to run a bit higher than some.

Originally Posted by Mx6GT89

With the Fit, a header with large runners is a guarantee lean factor Its been proven many times.