tegrab18

jeff thanks gain for more on our discussion. i will have to try to find some literature on the fuel cut im talking about but i like the 150 fuel cut you were talking about lol. Also good point on the 4 speed trans but i know with me when you got boost you always want more and everything factory on the car just really doesnt do justice anymore. Im sure you can agree with the 100%. Otherwise what your saying (which i should have read the whole thread) with the kits being 10% legal in just say the 50 states then yes. I will have to agree with your kit. I wish i lived a lil bit closer to you to mess around a lil bit more with the cars.

JeffTsai

iTrader: (1)

Well, that's the whole purpose of the OBDII system. It is is a self diagnosing system. The testing facility assumes that the sensors are all in proper working order. If everything is working properly as it should, then the car is operating within proper emissions specifications if the computer does not throw any code. Most states here only do OBDII emissions testing with a simple plug in test to check for error codes, and there are no visual or sniffer inspections.

Certain states or cities with much more stringent emissions regulations require a sniffer in the tailpipe along with the plug in test. In these cases, of course a car with O2 simulators will pass the plug in test but definitely not the sniffer if you don't have a cat. You will lose a little power from having a cat in the pipe, but that's a small price to pay to stay fully legal. Also it's a small drop in the bucket when you have over 300rwhp(5hp loss w/cat) or 425rwhp(10hp loss w/cat) with Stage II.

Also, usually the metallic cats are not California OBDII compliant. They are high bypass catalytic converters(more exhaust gas is bypassed through the cat vs what is catalyzed). Yes it can withstand more heat and abuse, but there is a downside. It is only enough to pass loose emissions standards, but usually not enough to pass the more stringent ones unless you buy a really expensive metallic cat that is rated for OBDII emissions. I mean I can weld on whatever cat you want, but I'm just saying that if you use the cat I specified then it will be more likely to pass the sniffer compared to using a metallic cat. Or you can run without cats and find a shop that will pass you lol. Either way, the main point is that this kit will not throw any CEL whether if you have a cat on the car or not.

Really, it's all up to you

808d-no

I'm interested in the stage II kit...great work!

flexspeed

any updates?

YviE

iTrader: (3)

Thanks for the reply Jeff.

Actually I know a shop that can pass my car. :P I'd rather have a cat though, because I don't like the smell of exhaust gasses when you're at a stop...

So how's the development of the kit coming along?

JeffTsai

iTrader: (1)

It's been done. Just doing reliability testing at this point.

gs-ireland

Subscribed

ErseOne

Awesome build! I wish it was easier to get hold of a 5-6spd tranny for a decent price.

With one of your kits installed, what do you think about driving the car in automanual? (2GS-up/down shift buttons on the steering wheel) I hate automatic transmissions with a passion.

jjawaya

AWESOME!!!!! i wish i could afford something like this. if you need a tester in hawaii with the tropical climate and humidity lmk i only have a small drop.

4drferio

iTrader: (-1)

nice work man

duckJAI

With your stage 1/2, how will it perform in cold weather?

I live in Canada so it gets pretty cold in the winter time, around -30 C

Would this turbo setup still be reliable in such frigid temperatures?

I'm interested in stage 1/2 but worried about reliability in the winter.

arpham

iTrader: (2)

Bump! Happy new year, jeff. How's the R&D going for the kits?

handoverfi

iTrader: (7)

So that new Lambo you got ..... Are you secretly doing a 2jz Lambo

iGOTlexy

iTrader: (3)

I'll be a gs400 guinea pig if you want to make another kit

JeffTsai

iTrader: (1)

Still testing reliability. I've been flogging the hell out of the car all the time to do the testing. So far it hasn't had a single hiccup, it runs just like a factory boosted car.

It's actually a R&D car. For the sole purpose of developing a twin turbo kit

Sorry I'm most likely going to be moving onto a different platform soon, so I won't be making much more stuff for these cars in the future.