JBR 3.0" WP Owners

[JDMJOSH]

How much air are you guy flowing under WOT? In the middle of my Strat tune and we've quickly hit a wall with my CS unit sucking down 245g/s which seems to be limiting the true potential of the tune (along with this shitty 91 octane fuel, although im switching to 94)

[Dimenus]

Originally Posted by JDMJOSH How much air are you guy flowing under WOT? In the middle of my Strat tune and we've quickly hit a wall with my CS unit sucking down 245g/s which seems to be limiting the true potential of the tune (along with this shitty 91 octane fuel, although im switching to 94)

In cold weather I was hitting 310. Still hitting 295 in 55 degree weather.

Note: I do have a full DP and I was getting probably 265-270 on my CS intake that I had previously.

[speed14]

Originally Posted by Dimenus Note: I do have a full DP and I was getting probably 265-270 on my CS intake that I had previously.

Same here, CS intake and these numbers look familiar. I keep putting it off, but going to throw in HTP 3" and see what I can gain.

g/s depends alot of your MAF cal too, are you sure this is nailed down? How are your AFRs at wot?

[Dimenus]

Originally Posted by speed14 Same here, CS intake and these numbers look familiar. I keep putting it off, but going to throw in HTP 3" and see what I can gain. g/s depends alot of your MAF cal too, are you sure this is nailed down? How are your AFRs at wot?

Normally quite good. The log I posted above is an anomaly.

[JBR]

Originally Posted by JDMJOSH How much air are you guy flowing under WOT? In the middle of my Strat tune and we've quickly hit a wall with my CS unit sucking down 245g/s which seems to be limiting the true potential of the tune (along with this shitty 91 octane fuel, although im switching to 94)

245 seems low.

[Mike@Stratified]

@jbarone; I think he is saying 245g/s from the CS intake, not your 3".

[JBR]

Originally Posted by RacerMike @jbarone; I think he is saying 245g/s from the CS intake, not your 3".

Yeah I thought that seemed low though.

[JDMJOSH]

Here's my latest WOT log

[Tyhackman15]

Originally Posted by JDMJOSH Here's my latest WOT log

I'm flowing more than that with a Cobb SRI and stock TIP.

Anyone else with a CS care to chime in? I would hope it would flow substantially more than that...

[mr.speedy3]

Originally Posted by Tyhackman15 I'm flowing more than that with a Cobb SRI and stock TIP. Anyone else with a CS care to chime in? I would hope it would flow substantially more than that...

I'm with this guy, I flow more on my tiny SRI/TIP combo... in Arizona heat (already in daily 100 degrees)

[PPD369Speed3]

As soon as I get done work I can post a log. Just finished up a 93 freektune. Filling her up with e85 within the next couple days.

probably tappin dat ass

[SLOWHATCH]

I saw my CS intake and tip combo max out around 240-250g/s on a hot day. Highest recorded was on a very cold day somewhere around 275-280g/s. Nothing abnormal if the maf is dialed in correctly IMO.

[MizzyMS3]

I just finished up a RichTune and with my cs Sri/tip I flowed (flew?) 280g/s max.

[motherfnmonsta]

hmmm that is low I would assume you should hit 300 grams per second with a 3.0 intake with the proper tune. I am almost hitting 300 g/s on my rich tune revision with a injen cold air intake, but when I am ready to make more power such as a BT I am for sure going with a jbr WP

[Ireland]

My CS sri/tip is in the 290's and im in the begining of a tune

[JDMJOSH]

hmmm, wonder whats causing my flow issue then. Well, im going to take off the air filter tommorow and inspect the MAF housing. Maybe the filter needs cleaning (doubt it)

[Dmurray06]

Originally Posted by JDMJOSH hmmm, wonder whats causing my flow issue then. Well, im going to take off the air filter tommorow and inspect the MAF housing. Maybe the filter needs cleaning (doubt it)

Another thing to consider, is the shitty cotton whatever filter they use. Not sure if they changed it in the last year, but mine is junk and don't flow shit.

[Ireland]

Originally Posted by Dmurray06 Another thing to consider, is the shitty cotton whatever filter they use. Not sure if they changed it in the last year, but mine is junk and don't flow shit.

They still rockin the cotton

[himurax13]

Originally Posted by Dmurray06 Another thing to consider, is the shitty cotton whatever filter they use. Not sure if they changed it in the last year, but mine is junk and don't flow shit.

Hmm. I bought mine early last year. I am hitting in the mid 280's on 91 octane on my K04. With the beaner I was hitting above 360 if I remember right.

Sent via blown passenger side speakers.

[amggilly305]

because pu thats why

[Dmurray06]

Yeah, living in the foothills of the Rocky Mountains doesn't help either.lol

[Mortose]

Originally Posted by Dmurray06 Yeah, living in the foothills of the Rocky Mountains doesn't help either.lol

I can attest to that. on my final K04 tune with E, i was only flowing 245 g/s, and now on my latest revision of my GTX, with a full 3" intake, i'm only flowing a hair over 300 g/s.

[Dmurray06]

Originally Posted by Mortose I can attest to that. on my final K04 tune with E, i was only flowing 245 g/s, and now on my latest revision of my GTX, with a full 3" intake, i'm only flowing a hair over 300 g/s.

That's depressing

[agentgordon27]

I was in the CS section and someone was asking about how to fit the stock maf size CS intake on a GTX2867r, this is on the K04 and your topping out right?

Dayum, that dood is gonna have fun getting 290hp on BT. @NCspecV81; check this out before trying to suck BT air through a stir straw.

[PPD369Speed3]

With my jbr 3.0 on a 4th gear pull I got up to 275 g's. I'm about finish a 93 tune and going to start on e85 shortly. Also it's probably not flowing as well as it should be of the humidity. It gets very humid in Philadelphia.

probably tappin dat ass

[rfinkle2]

The maf g/s is highly dependent on how tight the maf curve is.

I don't think it has been quantified, but the gen2 can correct open loop fueling up to 10% or more, so @ 250 g/s, that could be the ~25 g/s discrepancy. Your altitude is also contributing.

My k04 never hit any more than 265 g/s and I made 338 whp / 362 wtq with a .98 CF.

G/s is not a particularly good indicator of HP.

[Instrument_Guy]

FWIW Josh, I've seen my MAF gs' drop off when it gets warmer. Its our shitty altitude. Get Lex to show you one of my logs when I was tuning with him last year for a comparison.

[atvfreek]

Like Rfinkle2 said, people use that g/s number way to much to quantify power level. My BNR "flows" 315ish on a hot day, yet I make 400+hp

FYI, the CS intake uses an AEM dryflow filter, which has been proven to be one of the best performing filters on the market.

Edit: As does all of the JBR intakes

Another FYI, one of the first times I got on a dyno to tune my car was when the AP first came out for gen2, and I was testing maf cal, and g/s vs actual hp. So I ran my CS map, then loaded a COBB SF map. Both of these were tested on the street before hand, and wot maf cal was spot on 11.5afr. CS map flowed 255-265 g/s, the COBB SF map was "flowing" 300g/s, boost and timing were the same...... HP/TQ numbers were all within 5hp of each other over the 4 runs I made on those 2 maps. So maf g/s has to be used with a grain of salt.

[rfinkle2]

LOL @ Gilly getting groaned.

The gen2's are out in force.

[ms3blackmica]

In all seriouseness though, amggilly305 is right.

Because Pu Lol

I see sometimes people claiming k04's flowing 330 g/s with 3 or 3.5" intakes but its really just the result of an overly scaled MAF curve with the ECU correcting so AFR's look spot on. OP may actually be flowing up to ~275 g/s but would not know due to OL correction. MAF g/s can most certainly be used as an indicator of HP but it is to be taken with a grain of salt as atvfreek said especially if we run E85 which contains more oxygen in the fuel itself than 93 Pump Gasoline w/ ~10-15% ethanol.

Groan me