This was taken right after it started for the first time.
BDC is the builder.
http://www.idahorotary.com/brapp.wmv

 

Cool!

 

Good idle for a bridge! What's the idle speed? Fairly low? Like 1200?

 

It is at about 1200 now. When I filmed that, it was around 1500.

 

Here it is with 200 miles on it! Starting to smooth out a little. This is @ 1200 RPM.
http://www.idahorotary.com/brapp2.wmv

 

sounds real nice. how long are you breaking it in for?

 

BDC told me 500 miles. I have heard conflicting things on how long you should break in a engine.
Mazdaspeed says 300 miles with new bearings. 200 miles with used bearings.
Some people say 1500 miles. Some people say 2000 miles!
I think I will go with what the builder of the engine told me. I already have over 400 miles on it! I accidently boosted to 1.2 bar because my wastegate lines were switched when I assembled it. Didn't hurt it any.
Runs pretty strong!

 

sounds good! Do you have an idea what your mileage will be?

 

I wonder wat that baby sounds like at 8000rpm. hehehe

 

very nice, please share more videos after break in and under boost

 

http://www.idahorotary.com/rxtasy5.wmv
Here it is boosting to 1 bar.
I am going to leave it there until I get another 500 miles on it and then gradually increase it to 20 PSI.

 

very nice

 

how streetable is it? how do u like it!
how much power do u think your going to make?

im asking because i want to go 1/2 bridge on my FD soon, thanks

 

It's OK on the streets. When you feather the throttle it kinda bucks a little.
I think I am around 400 RWHP @ 15 PSI. You really notice the power increase at the top of 3rd. It actually scares me! I will take it to the dyno as soon as I get it tuned on the road with my wideband.
I love the sound of it when you are parked at a light! It tends to get a lot of attention.
After I have a few more miles on it, I am going to increase boost to 20-23 PSI. Then the fun will begin!

 

how is the power band? when does it seem to really pick up? at what Rpm's? hows the low end? what are u going to redline it at now? 8,500?... thanks for putting up with my dumb questions...

 

It pulls hard as long as you keep your foot in to it. I am shifting at 8k.
Low end suffers a bit until the turbo spools.
From 6k to 8k, it is like a rocket.
July 10th. will be it's first time at the track with this engine. Hoping for 11's. Previous best was 12.8 on a stock engine and a hybrid turbo.

 

The map needs to be street tuned some, Bruce. I can get rid of that light throttle stumble for you unless you're talking about how it bucks at lower RPM's.

Can't wait to hear about the numbers at the track!!

B

 

someone must be sponsored by greddy, and the color RED.
kris

 

i never really liked the sound of the rx7 until i heard one with a bridge-port ... "glug glug glug" .. so seckzi! i just bought a FC3S GXL .. wish me luck :P GREAT car.

 

Sounds mean as hell!

 

BDC or RXTASY1,

What AFR do you tune a half bridge for on pump fuel? Also curious what timing changes are needed compared to a street port.

 

Right now, I'm running way rich just for safety sake.
I also have h20 injection.
11:1 would be a good place to be. Right now I'm running 10.5:1.
My timing was set by the conventional method.

 

really nice sound!!!!!!!!!!!

 

Sweet man. Lets see some track and dyno #'s. See popping your engine wasn't so bad!! Now look at what your running.