Bought a B6T Turnkey!

[Advancedynamix]

Also, if your plans are the 2560r, plan on a different intake manifold and throttle body setup, and a more aggressive set of cams. Otherwise your just sacrificing response for nothing. The system must be balanced. Just throwing a bigger compressor at it won't help. The 2554R is perfectly matched to the stock curve, but has the versatility to utilize a better intake manifold and camshaft package. These engines were detuned from the factory with the cams and intake manifold that was put on them. It's easy to see this when you compare the U.S. b6t intake manifold to the JDM part, or the miata manifold.

[bhearts]

Festicle and xaero

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[mikemounlio]

I need a picture of this!

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[bhearts]

I have had plenty of seat time in the car now! With the current exhaust the car is a time bomb. I can feel the power come on around the 12psi mark and anything over 16 is just the same. I cant stay in the power for very long due to the boost creep. I would say the car can go much much faster once the stock down pipe is back in place. I cant feel any power gain over the 1st good surge of power because i have to let out so fast. I wont notice any power loss going back to the stock exhaust because ill be able to use more of whats actually there rather then feeling one crazy amount of pull for a split second.

This weekend should be a good time to really get into the car and fine tune it.

I do think i have changed my mind on the gt2554r to the 2560 tho. In the future when i go to a big turbo (haha thats funny- big turbo) i think i will go with the 2560 to have the extra up top power vs the low end. I am still on the fence tho. Once i have this car back closer to normal boost levels that may change my mind.

I do love this car tho. It is crazy fun to drive. The suspension from charlie plus some actual power is one amazing combo. Its so much fun to pull through a turn!

Sounds like you need a nice long tube header like hotwheels got.

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[mikemounlio]

I have had plenty of seat time in the car now! With the current exhaust the car is a time bomb. I can feel the power come on around the 12psi mark and anything over 16 is just the same. I cant stay in the power for very long due to the boost creep. I would say the car can go much much faster once the stock down pipe is back in place. I cant feel any power gain over the 1st good surge of power because i have to let out so fast. I wont notice any power loss going back to the stock exhaust because ill be able to use more of whats actually there rather then feeling one crazy amount of pull for a split second.

This weekend should be a good time to really get into the car and fine tune it.

I do think i have changed my mind on the gt2554r to the 2560 tho. In the future when i go to a big turbo (haha thats funny- big turbo) i think i will go with the 2560 to have the extra up top power vs the low end. I am still on the fence tho. Once i have this car back closer to normal boost levels that may change my mind.

I do love this car tho. It is crazy fun to drive. The suspension from charlie plus some actual power is one amazing combo. Its so much fun to pull through a turn!

[kumalaba]

love those wheels!!

[Advancedynamix]

Looks awesome Mike!

[mikemounlio]

Yes they were! So worth it tho... Just over 8lbs each. The problem is that the B6T spins them up way to fast now. Once i get some Toyo R888 meat on them it will be much better.

Thank you tho!

[skeeters_keeper]

I have wheel envy. Those RPF1s are $$!

[TWFodor]

Beautiful car!

[bhearts]

The wheels I have are pretty similar to those. Your car sure is clean though. Mine has a little door rust, and rear wheel well rust, but at least the whole bottom is super clean.

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[mikemounlio]

Got all my rims on her!

I have it going in today for an alignment! My front suspension is complete minus the rio steering rack! The rear will be put on tomorrow. I have the Micro Tech ecu being shipped to me now. Will pick up a cheap laptop and timing light and get it remote tuned. Will be doing some light exhaust work this weekend as well. Gonna try to get the boost creep down a bit. Will be porting the waste gate in a week or two. I hope to be able to get it tuned in 2-3 weeks. Slow but steady progress.

[Greywolf]

I always wanted to weld together a muffler based on a pistol or rifle silencer - discs with an exhaust pipe sized hole in the center spaced apart far enough so the exhaust pulses have to expand and collapse back into the center in each successive chamber. That would cause ( I think...) the gasses to even out into a steady stream that would have less resistance to flow than high and low pressure waves running through the tubes.

After the header (where the tubes are calc'd to produce a scavenging affect) and after the cat (if any) it would only clean up the flow, and might even make it "STEALTHY". But the whole idea was born in my mind as a way to replicate an open racing exhaust, without limiting flow - and yet use the chambers to damp out pulses or pressure waves - thereby making it a straight flow with no restrictions at all yet eliminating most of the noise

"NOISE" coming out of a straight exhaust is caused by 'Blast Waves' of high and low pressure. This, I think, would even that out. Sort of like a sponge - and the center flow area would be the same as a section of exhaust pipe the same diameter.


Heck, it works for UZI and MP5 SMG's....

[Advancedynamix]

I feel like the b6t is the only engine that nobody has innovated. I guess the bp is to blame for that.

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There has been a lot of development on this engine, but it was all done pre Internet, so you don't see it like you do the BP, which has taken the limelight here in the U.S.
In other countries, the b6 was used more regularly for radical builds, but then again, mostly pre 2000.
The DOHC b6 engine was designed as a turbocharged racing engine. This is apparent by its integrated block vent (capped off for U.S. import vehicles) and the fact that it only came in Mazda homologated rally cars for the first 4 years of production, and only came turbocharged. The b6t was designed to be a race engine from the start. It wasn't until the Miata and the Capri came along when it was used in higher production number cars, and sold without a turbo. The b6t is a great package in stock trim. It is VERY user friendly in a light car like the Festiva. It's, in fact, so user friendly that it feels slow and therfore makes most people (myself included) lust for more. It's best to keep in mind that feeling faster may not be going faster here though. This engine combination is so well balanced and suited to this car that it's easier to make the car slower than it is faster. My advice to someone who has a b6t swapped festiva; learn to drive it before trying to make it faster. There are more situations where drivability is important than there are where all out, full throttle, HP is. It's also a lot more rewarding to drive the car than have it sit in the garage all torn apart. Just my .02 having played this game before.

[Advancedynamix]

I have a new idea on the exhaust! I want to get some 2" exhaust pipe from my local auto store. Also get the adapters to neck down from the current 3" to the 2" (all on the inside on the 3" pipe). I will weld them all up to make sure they cant come apart. I could drill several holes in the 2" pipe. Make the pipe around 8" long+ the length to adapt to the 3" id. I could slide the new 2" pipe with adapters on it down the 3" pipe and weld it in.

I would tack all the parts together and just slide them in 1st to check the sound and make sure it is good.

Would just making the exhaust neck down to 2" do anything as far as boost creep tho? If the down pipe (current modified one) is so open would modification to the end of the exhaust really help it any.

Probably not. The factory downpipe is close to 1.75" i.d. and these engines boost creep if you run the stock downpipe to a 2.5" exhaust with muffler. Your short section of 2" pipe won't be enough. You may want to make a baffled insert like sketch drew up.