I took my car to the dyno

[kit88]

Hi, I took my car to the dyno,
this is my set up
d15b7 engine
msd cap and external coil
2.5" custom exhaust with dc sports muffler
dc sports headers
aem short ram intake
12778

please comments to fix my air/fuel ratio

[transzex]

exhaust is too big, dyno operator needs to use smoothing function,

do you have the dyno files? I can smooth them......

needs Si cam, Z6 intake, and a CAI, easy 25 hp.....

[kit88]

I don´t have the files,

I will put on a few days:
d16y8 heat p&p
crower stage 2 camshaft
d16y8 im overbored to 64 mm
64 mm tb


If I put at this moment an adjustable cam gear and y retard this 2 degrees
it will help??

[SupaStyl]

maybe a little, but not much, bout the only thing you can do is smooth the maps out. maybe sum fuel pressure tweaking for temporary.

[kit88]

maybe a little, but not much, bout the only thing you can do is smooth the maps out. maybe sum fuel pressure tweaking for temporary.

How I do that??

[myHonda1]

How I do that??
get a aem adjustable fpr...and go from there.

[kit88]

get a aem adjustable fpr...and go from there.

Ok, I will,

Thanks for your response guys

[20civic00]

i think your tb is too big. on a n/a you dont wana go over 62 mm...60mm preferably.

[kit88]

i think your tb is too big. on a n/a you dont wana go over 62 mm...60mm preferably.

What kind of problems with the 64mm???

[kit88]

What kind of problems with the 64mm???

Sorry for the question but I´m new on this.

With the 64mm tb I will lean or reach or what kind of problems can I have.

Also with kind of problems I will have with my 2.5" custom exhaust.

Plase help

[turboedpickup]

2.5" is pretty much to big for the power level that you're at going N/A. you lose velocity... so.... 2.25" is good. but do what bone says... it's good info.

[nathan]

nothing wrong with the setup except that it's running rich (assuming the wideband is reading accurately). Lean it down to 13.5:1 or so depending upon what your motor likes (it'll like being a little richer, little leaner depending)....

However, once you throw the rest of that stuff on (which I see no problem with any of - except that the 64mm better be a taper-bore ie, smaller at the butterfly or exit than the throat) ......you'll have a completely different tuning story anyway, so get that all situated and tune it....you'll be good.

arbitrarily adjusting the cam timing is also a bad idea - needs to be done on a dyno (make sure you clay the motor for max retard/advance cam timing so you'll know your range).....then try 1 degree advance, 1 degree retard, and so forth.

Nathan

[kit88]

nothing wrong with the setup except that it's running rich (assuming the wideband is reading accurately). Lean it down to 13.5:1 or so depending upon what your motor likes (it'll like being a little richer, little leaner depending)....

However, once you throw the rest of that stuff on (which I see no problem with any of - except that the 64mm better be a taper-bore ie, smaller at the butterfly or exit than the throat) ......you'll have a completely different tuning story anyway, so get that all situated and tune it....you'll be good.

arbitrarily adjusting the cam timing is also a bad idea - needs to be done on a dyno (make sure you clay the motor for max retard/advance cam timing so you'll know your range).....then try 1 degree advance, 1 degree retard, and so forth.

Nathan

Yes, tb is 64mm at the throat and 60 at the exit to the im

It is ok ???

[kit88]

Yes, tb is 64mm at the throat and 60 at the exit to the im

It is ok ???

Then, I have to overbore my im justo to 60 mm

[Arachnid]

yes that's it. it'll work sort of like a velocity stack