Why is Fuel/Air Mix ratio important? Read this - Very Informative
Excellent read on how important fuel mix ratios are in achieving maximum power.. This article also has graphs to explain clearly why it is important to maintain a properly balanced fuel/air mix in a engine.
whoa...nice article. I like the little blurb about the rotary valve system...a neat concept I hope makes it to a viable system.
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Genthar
Rhino Lining, Waag one piece grille guard and wheel to wheel nerf bars, 3M Xpel on headlights, front corner lights, and foglights, Valentine One radar detector, XM Satellite radio, Navigon 7100 GPS, Lightforce 240 Blitz aux lights, Aux. reverse lights.
AEM Brute force intake, courtesy of AEM Power and TundraSolutions.com
Teamwest Coilovers, Camburg Upper A arms, Daystar Steering Rack Bushings, Total Chaos Diff Drop spacer, JBA Headers, Y-Pipe, and EVOL exhaust.
Informative article, I wonder why OBD2 hasn't been flashed or reprogrammed like many people do with Chevy trucks? The Chevy guys buy this hypertech programmer that reprograms the computer. Granted it's not tuned to the specific vehicle like a Unichip dealer would do but the fact that the stock computer can be tuned makes me wonder why one would need a piggy back computer to do the same thing.
Maybe it has to do with the complexity of tuning the stock computer!
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stock exhaust
Formerly Modified JBA headers now SSautochrome headers temporarily
TRD LSD
Extang lift off tonneau
Hankook DynaPro AS RH03
stock air filter & box
220 HP @ 4800 RPM
302 TQ @ 3400 RPM Run With Spintech Sportsman XL muffler, stock air filter, and JBA headers
208 HP @ 4800 RPM
285 TQ @ 3400 RPM Run With Spintech Sportsman XL muffler, TRD air filter, and stock manifolds
204 HP @ 4800 RPM
271 TQ @ 3400 RPM Bone stock
Quarter mile 15.526 @ 87.17 mph bone stock in 40-degree weather 2WD SR5 V8.
Quarter mile 15.389 @ 88.66 mph modified in 60-degree weather 2WD SR5 V8.
0-60 IN 6.88 seconds on G-tech
Dyno run results click here
Informative article, I wonder why OBD2 hasn't been flashed or reprogrammed like many people do with Chevy trucks? The Chevy guys buy this hypertech programmer that reprograms the computer. Granted it's not tuned to the specific vehicle like a Unichip dealer would do but the fact that the stock computer can be tuned makes me wonder why one would need a piggy back computer to do the same thing.
Maybe it has to do with the complexity of tuning the stock computer!
A guy named Jim Conforti has an OBD2 flash programmer available for '96+ BMW engines. It is called the Shark Injector. For more info, just do a search on google. I've often thought about sending him an email to see if he would be interested in developing something similar for Toyotas. Here is a link to more info on the Shark Injector >>> http://www.sharked.com/chips.html and here is a NY Times article featuring Conforti >>> http://www.nytimes.com/library/auto/051700wall.html
Informative article, I wonder why OBD2 hasn't been flashed or reprogrammed like many people do with Chevy trucks? The Chevy guys buy this hypertech programmer that reprograms the computer. Granted it's not tuned to the specific vehicle like a Unichip dealer would do but the fact that the stock computer can be tuned makes me wonder why one would need a piggy back computer to do the same thing.
Maybe it has to do with the complexity of tuning the stock computer!
GM shares their ECU source code with the aftermarket,Toyota on the other hand isn't that willing to share.
GM shares their ECU source code with the aftermarket,Toyota on the other hand isn't that willing to share.
Yep...I concur...this is just what I've heard, many have tried but nobody has been able to crack their source code. Even TRD uses a piggyback!! And this is Toyotas stance on aftermarket...I've learned first handed. I am still awaiting aproval on TRD billet cover going on 6 months....they just would prefer reliability over performance / aftermarket...good and bad.
with the cone-style intakes...is the reason for low-end loss due to improper fuel ratio? the ecu isn't trimming the ratio properly, so it runs rich?
TRD even makes an intake. Whats the big deal with them upgrading the engine and supercharger components when It was common back in the day and STILL is with the turbo cars especially the all mighty Supra.
Why is Fuel/Air Mix ratio important? Read this - Very Informative
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