During the my dyno session on Sunday they had a J's Racing intake sitting around, so after all the tuning was finished we threw it on to see what difference it would make on the dyno.

We all know there are differences between real-world driving situations and dyno's, regardless, the intake definately has two resonance frequencies, one at 5500rpm's, and one at 8000rpm's. Ideal IMO.

 

Cool!

 

j's racing

 

its really funny how you see real dynos saying 2 completely different things. some the j's style makes more some the filter on a stick makes more...

 

id be curious to see what a CAI would do on the same car for grins

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MikeSarr_GSR &raquo;</TD></TR><TR><TD CLASS="quote">id be curious to see what a CAI would do on the same car for grins</TD></TR></TABLE>

No doubt, throw the version 1 AEM cai on it and see what happens

 

top end only gains about 1HP but around 5500RPM it has a better noticable gain for street drivin when u dont redline all the time i'd say it gives more power just my .02

 

Did you try to run it richer at all? My car would never run that lean up top..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tbone &raquo;</TD></TR><TR><TD CLASS="quote">Did you try to run it richer at all? My car would never run that lean up top..</TD></TR></TABLE>

The tailpipe sniffer was running between .5 and .9 leaner than the bung WBO2. Their tailpipe sniffer is getting old. AF's are fine

 

gotcha

 

marshals car is the new test dummy lol muaahhh cant wait to throw the bc5 cams in your motor

 

My experience is that the J's has three resonance points:2,800, 5,900, & 7,900. The problem I have seen is that a resonance point for the J's is nowhere near as pronounced as I have seen for other intakes. It makes the J's fairly easy to tune-the A/F does not fluctuate very much so you get a nice flat A/F curve and corresponding torque curve. I run it on my street car because of it's low end grunt ; it only sacrifices 10 or so HP up top to the other intakes that I have in my arsenal

 

We have never had a car that has dynoed less with the j's

 

interesting
My friend had his J racing intake and decided to change for cold air. Matbe we will need to re-examine the issue at the track.

 

just out of curiosity how much does a J's racing intake cost? is the price practical for the few hp gained? or would you get more power with another mod?

 

theres a dyno somewhere where the AEM ITR CAI makes a lot more power than the J's.

 

I remember seeing a Comptech performing better than the J's as well.

 

and not just peak but the whole powerband

 

has anyone dyno'd a j's racing with a K&N filter??

 

Is that a real J's or an imitation? The funny thing is that I've seen the fake ones own the real ones before.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhoisDan &raquo;</TD></TR><TR><TD CLASS="quote">I remember seeing a Comptech performing better than the J's as well.</TD></TR></TABLE>

the comptech is superior definatly