X intake DIY + Install vids + AFR and Dyno Comparisons

[CaliGuy]

Originally Posted by ibanez37

It seems Cali's AFR is about .5 point leaner in some points compared to some of X's other dyno's, but when you look at the Fujita.... it's not that pretty.

Mine could be running leaner due to the TB spacer or due to the warmer temp when I dynoed possibly? IDK

[hawjdude]

i have my dyno graphs right in front of me: w/ the injen cai, the a/f ratio lingers around 12.3-12.5 range. i've confirmed this with X's dyno w/ the injen cai as well. his should pretty much the same as mine. just as a side note, X's dynos are well done and very consistent with mines in terms of mods and what the a/f would look like.

Originally Posted by klk15

does anybody know the a/f ratio of the injen CAI sorry if this question has been answered allready....

[xfactorwrx]

Originally Posted by Whocares05050

Looks to me this intake runs WAY to lean. Thats minly why your getting the power. But, to lean for my blood.

its actually not, look at his stock AFR, most Si's run LOW 12's AFRs. the BBR dyno reads like .4 leaner that what it actually is. so cali's car is more around high 12 AFR. i know this because ive dynoed at serveral other dynos to comfirm.

[RockyMtnFBPSi]

Originally Posted by bizzybearfigiblue

i agree with u that for longevity (200k+ miles) that these numbers wouldn't be good... but for the majority of us, 200k+ isn't realistic right now... and are willing to run the car a little bit leaner...

I don't see why stupid high miles isn't possible running a little leaner. As long as there is no dumbassery involved like driving the car like it's stolen on a hot day while detonating (half of the people complaining about a/f ratios probably don't know what that means) all over the place, there shouldn't be a problem.

If someone beats the crap out of their car every chance they get, a/f ratio probably won't save the motor from giving out before 200K miles anyway.

[ErichPryde]

hmmm.... I actually think that a lot of the people who even concern themselves with lean and rich AFRs know something about detonation.

[RockyMtnFBPSi]

Some people only know what they read on the boards. They read that "lean is bad" and that "lean is unsafe" an believe that even though those with practical experience know that isn't exactly true.

I would say that "a lot" of people running forced induction go out of their way to educate themselves on what detonation means. I would also say that "a lot" of people who might want an X intake as their first-mod-to-any-car- ever would not know "a lot" about it.

[Qshooter151]

Originally Posted by soxfan143

You have the reflash, right?

yessir

Originally Posted by ibanez37

Looking good Q. I dig the black coupler more, but still looks great! My CRV tube and lid should be here Wednesday and my bracket is paid for, as well as my filter. Hopefully all is here before Friday in time for the possible track time

thanks man. went to get my coupler last night looking for black, but all they had was the red one, so red it is.

[Whocares05050]

Originally Posted by RockyMtnFBPSi

Some people only know what they read on the boards. They read that "lean is bad" and that "lean is unsafe" an believe that even though those with practical experience know that isn't exactly true.

I would say that "a lot" of people running forced induction go out of their way to educate themselves on what detonation means. I would also say that "a lot" of people who might want an X intake as their first-mod-to-any-car- ever would not know "a lot" about it.

Ok, heres my take on things now....

I have personally owned, and drove turboed cars. I also have some tunning experience under my belt. I know what timing is, i know what detonation is, i know what is safe for F/I cars, and i know whats safe for N/A cars. Now that we have that down...

Running this lean on a F/I setup is almost suicide unless you have water/meth, and are running 100+ octane. Since this isnt a F/I car, i wont go any further.

UNDER LOAD, which this car is, is running mid 13's on the graph. The car by itself with no tunning whatsoever can only pull enough timming on its own. ( or advance ) Now, when you talk about being safe, and longevity out of a vehicles motor, this is what im talking about. car manufactures make the vehicles run overly rich, so when you go " beat " on your car, it is a VERY safe setup still. Im not saying x's intake is " So unsafe that youll be doing a motor swap in a year ", but i am saying that it really isnt the best AFR you would want to see.

Now, if x is correct, and it reads .4 higher, then im sleeping better. More than likely it was a sniffer that was used in the tail pipe, and is a little off.

[xfactorwrx]

Originally Posted by Whocares05050

Ok, heres my take on things now....

I have personally owned, and drove turboed cars. I also have some tunning experience under my belt. I know what timing is, i know what detonation is, i know what is safe for F/I cars, and i know whats safe for N/A cars. Now that we have that down...

Running this lean on a F/I setup is almost suicide unless you have water/meth, and are running 100+ octane. Since this isnt a F/I car, i wont go any further.

UNDER LOAD, which this car is, is running mid 13's on the graph. The car by itself with no tunning whatsoever can only pull enough timming on its own. ( or advance ) Now, when you talk about being safe, and longevity out of a vehicles motor, this is what im talking about. car manufactures make the vehicles run overly rich, so when you go " beat " on your car, it is a VERY safe setup still. Im not saying x's intake is " So unsafe that youll be doing a motor swap in a year ", but i am saying that it really isnt the best AFR you would want to see.

Now, if x is correct, and it reads .4 higher, then im sleeping better. More than likely it was a sniffer that was used in the tail pipe, and is a little off.

max i see on his graph is 13.3, for most of the run its below that.

[Whocares05050]

Originally Posted by xfactorwrx

max i see on his graph is 13.3, for most of the run its below that.

As long as its .4 lower as you say, then mid to high 12's is good.

[xfactorwrx]

Originally Posted by Whocares05050

As long as its .4 lower as you say, then mid to high 12's is good.

right so max his car only saw 12.9

[Whocares05050]

Originally Posted by xfactorwrx

right so max his car only saw 12.9

What did they use? a sniffer in the tailpipe?

[vicSi]

can somone post up a picture of the Finished product, im wondering if the SI box goes in aswell idk... really appreciate it

[xfactorwrx]

Originally Posted by Whocares05050

What did they use? a sniffer in the tailpipe?

yup....

[xfactorwrx]

Originally Posted by vicSi

can somone post up a picture of the Finished product, im wondering if the SI box goes in aswell idk... really appreciate it

[hawjdude]

is this the mark to stay around?? i thought it was perfectly safe running a/f ratios around 13.5 as long as you dont exceed it.

Originally Posted by xfactorwrx

right so max his car only saw 12.9

[xfactorwrx]

Originally Posted by hawjdude

is this the mark to stay around?? i thought it was perfectly safe running a/f ratios around 13.5 as long as you dont exceed it.

it is, its just thats what i usually see with the intake on a stock car. addingheader and other bolt-ons wont really change the AFR after that except for CAMs

[vicSi]

can somone post up a picture of the Finished product, im wondering if the SI box goes in aswell idk... really appreciate it

[Zeuceone]

they have pics already.