i drove a wrx that i might buy. and im not sure what it is maybe lag or something, but while full throtle, it seems like i donno how to exlpain but its kinda hesitant. does anyone know what im talking about, or could it be something else. also he has a narrow band autometer air/fuel, and he swears its a pointless peice of junk, but is that true?....when it was doing what i was talking about, on the gauge it would go back and forth from lean to rich, i donno maybe its normal, but im not really familiar with turbo cars, and i dont wanna buy something thats got problems, i know its hard to tell problems over the internet, but any info/help would be appreciated.

 

A narrow band AFR gague is worth about a bucket of ****, it tells you nothing really, just has a sweeping light. WRX's lag from the factory, atleast my boys did until we modded it..... do it have any performance mods?

 

The 2.0L WRX ihas been known to have a "wait for it" feel. The 2006's with the 2.5L is suposed to have helped fix that issue.

 

it has no vtec quit waiting for it. hahaha. j/p

my friend's wrx is pretty torquey. but he has all sorts of things done to it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tankdogg08 &raquo;</TD></TR><TR><TD CLASS="quote">i drove a wrx that i might buy. and im not sure what it is maybe lag or something, but while full throtle, it seems like i donno how to exlpain but its kinda hesitant. does anyone know what im talking about, or could it be something else. also he has a narrow band autometer air/fuel, and he swears its a pointless peice of junk, but is that true?....when it was doing what i was talking about, on the gauge it would go back and forth from lean to rich, i donno maybe its normal, but im not really familiar with turbo cars, and i dont wanna buy something thats got problems, i know its hard to tell problems over the internet, but any info/help would be appreciated.</TD></TR></TABLE>

When you are just driving around town the gauge will do it's light show for you. At that point you can do one of two things: Be wowed by it like most ricers (not calling you one ) or pull it out and throw it in the river in lieu of a wideband o2. Choice two is the optimal decision, lol. As for the WRX, when I drove one it seemed like it would just fall on it's *** really bad after a decent mid-range.

 

Put an exhaust, up pipe, down pipe and an intake on it w/ an GReddy Profec-B II and a UTEC, my boy gets full boost at like 2800 rpm on a stock turbo 02 or 03 WRX. It spools faster than Tony the tigers GSR with the 28R that he posted up a little while ago.

 

doesnt a wrx lags like hell anyway stock ,I dont ever hear those turbos spool up for shiet.lolz!

 

the tune from the factory is purely for safety.

from what I've gathered off of the nasioc forums, the afr's sit at 14.5 until well into boost, and then they drop to 10.x for the remainder of the power band. people have picked up great gains and much better driveability from just a reflash and up/downpipes.

 

I really dont get the wideband o2 hype, cars have been tuned with narrow band o2's for few decades now and even the factory ECU reads the mixture from a narrow band, then suddenly narrow band is ****. wtf?
Narrow band will tell you rich, stoich and lean, but it wont read the fine area of stoich.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flashmn &raquo;</TD></TR><TR><TD CLASS="quote">I really dont get the wideband o2 hype, cars have been tuned with narrow band o2's for few decades now and even the factory ECU reads the mixture from a narrow band, then suddenly narrow band is ****. wtf?
Narrow band will tell you rich, stoich and lean, but it wont read the fine area of stoich.</TD></TR></TABLE>

stay away from tuning anything if your gonna think like that.

"rich" according to a narrowband 02 sensor is anything under 14.7:1........lets see how long your boosted engine lasts at that air/fuel ratio under boost.

 

I've got a GT35R kit from an STi if you want to buy it. Comes complete with Hydra standalone ECU and all hardware w/ Perrin 1100hp FMIC.

Sell it all to you at the low, low price of $5,500.00 shipped.

Made 535whp/481ft lbs @ 28psi on pump gas and stock block.

I've also got an '05 EJ25 block w/ 18,000 miles for $900+shipping.

Perfect for that WRX.

 

Going with a catless uppipe will eliminate much of the lag. If you do that with a 3" downpipe and something like a Cobb AccessPort you will have a quick and quiet car.

 

all depends on alot of factors what u didnt mention about the lag.
-does it still have stock turbo?
-stock exhaust?

also depends on which gear and how fast ur going when u punch it.
if ur going 30mph and its 3rd or 4th gear, its gonna be laggy until boosts builds up, usually around 3500 rpm, then u should see it move.

the gearing are very wide on the 02-05 WRX and since these motors are 2.0L w/ small turbo, no variable valve timing and small ports in the heads and weak cams, its gonna be laggy.

 

With the above mentioned mods in my previous post, my boys stock turbo'd WRX is a spool monster, it will build boost with like 40% throttle.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flashmn &raquo;</TD></TR><TR><TD CLASS="quote">I really dont get the wideband o2 hype, cars have been tuned with narrow band o2's for few decades now and even the factory ECU reads the mixture from a narrow band, then suddenly narrow band is ****. wtf?
Narrow band will tell you rich, stoich and lean, but it wont read the fine area of stoich.</TD></TR></TABLE>

You my Finnish friend, are an idiot stay away from the states with your tuning tactics, it will be our demise

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">Put an exhaust, up pipe, down pipe and an intake on it w/ an GReddy Profec-B II and a UTEC, my boy gets full boost at like 2800 rpm on a stock turbo 02 or 03 WRX. It spools faster than Tony the tigers GSR with the 28R that he posted up a little while ago.</TD></TR></TABLE>

How did I get in here?

It's cool to use cool turbo slangs, but "28R" could be a few turbos with totally different behaviours. There is the GT28R, GT28RS, and the GT2871R as a basic guidline (we'll not get into different trims). To clarify, my video is based on a GT2871R.

Hondas are known to have high RPM spool times... Short stroke, high revving engines. Can you rev a WRX engine to 9000+ RPM? Nope. So it is best to use same engines for comparison for turbo spool characteristics.

Anyway, back to the original poster's question. WRX's are known to be a big laggy down low, especially off idle. Even if the RPM is within spool range (3000+ RPM), when you hit it, it still hesitates a bit. No matter what you do do it, it will have that feel. DP, exhaust, no cats, EBC (prevents WG creep) helps a lot, but in comparison to a bone stock STi WRX (2.5L), the STi is way more responsive. I have too many friends with WRX's and STi's, and I often have them asking for advice on turbo selection and asking me for test drives to confirm if everything is running the way it should.

 

Are you following me Tony just playing, I said "28R" cause I didnt know the exact turbo you had and did not feel like moving back through the post to find it. I have driven several WRX's and for some reason the boost responce on my friends car is very smooth and fast. The car is untuned and running rich as hell but the damn thing is a spool monster, I wish someone had not stolen my camcorder a month ago because I would love to post a video of his boost gague with the tach in the background. We can be cruising around at 2500 rpm in 5th gear and if he just floors it the gague just sweeps to 18lb very similarly to your car. The one thing it does do that I dont like is bog a WOT in between shifts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">Are you following me Tony just playing, I said "28R" cause I didnt know the exact turbo you had and did not feel like moving back through the post to find it. I have driven several WRX's and for some reason the boost responce on my friends car is very smooth and fast. The car is untuned and running rich as hell but the damn thing is a spool monster, I wish someone had not stolen my camcorder a month ago because I would love to post a video of his boost gague with the tach in the background. We can be cruising around at 2500 rpm in 5th gear and if he just floors it the gague just sweeps to 18lb very similarly to your car. The one thing it does do that I dont like is bog a WOT in between shifts.</TD></TR></TABLE>

Then stop being so lazy

Most factory turbo cars are pretty good in high gear and at lower RPM's. Once you give the engine a chance to load up, it spools the turbo with no problems. It is the same idea as putting my Integra at 5th gear, and boost comes hard around 3500RPM