Good idea... I'll see if I can find one around here somewhere.

Yoshi wants the car on April 17 and says the overhaul will take 4-6 weeks. BNRs will probably be here in 3 weeks or so. In late June we could have the car back with the BNRs installed. After that, maybe a "gentle" dyno run to check AFRs.

 

huh? I thought NepTune Speed had an inhouse dyno... In fact here is a picture from yelp tittled: Master Yoshi tuning my FD. March 12, 2015.



https://www.yelp.com/biz_photos/nept...UWnDH6sVRuheZA



Did he had it removed?

 

You should have NO problem finding a dyno in OC by you, but if you can't, I can recommend the guys at Road Race Engineering up in Santa Fe Springs.

 

That would be great! If he (still) does, I'll ask him to run that check after the overhaul. (Hey, I'm new at this "speed shop" stuff.)

 

The new engine will likely require a "break in" period. In my case, they said no boost and keep it under 4000 rpm for several hundred miles.
I dont think they will be putting it on the dyno until it's fully broken it

 

Sounds reasonable. I'll have to put a block under the accelerator pedal (for wife)!

 

Yoshi definitely has an in shop dyno and he's an excellent tuner. He's tuned 2 of my friends cars. He tunes on the conservative side but both cars feel factory when driven. One is a single t3 35r and the other is still on twins. Both about 350whp. Yoshi will tell you if you need anything else done to run those turbos, all in time . I'd have yoshi tune my car but he doesn't do adaptronic.

 

The 99-spec turbos arrived today. Day after tomorrow we are taking our FD to Yoshiya for overhaul. I have a new set of OMP lines from Ray Crowe, and have also packed in the FD's trunk my Viton hose supply (just in case). In 4-6 weeks it should be done. Yoshi says as long as the cat converter is OEM (hey, this is California) there should not be a problem with these turbos. (He also said that if they were BNRs, the engine would run lean under boost in 4th and 5th gears with the OEM PCME.) So I'm glad I switched to the 99-spec units.

 

So what happened to the BNR'S that you ordered?

 

Where did you source viton hose? I can't find it in good sizes, with good wall thickness.

 

They had not been started. I was getting nervous about 1) the requirement for modified fuel delivery, meaning $$ for an Apex Power FC or Adaptronic PCME, 2) needing to ship my Y-pipe to BNR for modification, 3) requirement to ship the current turbosystem back to BNR (core charge), 4) 3-week wait for the BNRs.

So I canceled the BNR order and bought the 99-spec units, allowing me to leave everything else stock (according to Yoshiya and others on this forum). $490 more, but avoids more $$ and probably much hassle later, which I don't need.

I bought the following items from McMaster-Carr Supply Company, 9630 Norwalk Blvd, Santa Fe Springs, CA 90670-2932. Phone was (562) 692-5911. Order was placed 8/15/2002.

1) 15 ft length of "High Temperature Viton Rubber Tubing Firm, 1/4" ID, 1/2" OD, 1/8" Wall, Black" - Part Number 5119 K49 - Unit price: $11.29/ft

2) 50 ft length of "High Temperature Viton Rubber Tubing Firm, 1/8" ID, 3/8" OD, 1/8" Wall, Black" - Part Number 5119 K48 - Unit Price: $6.84/ft

The fit of the 1/8" Viton tubing on the FD's hard tubing is tight. OEM ID is 3.5 mm, 1/8" = 3.175 mm, but in general this was not a problem.

The fit of the 1/4" Viton tubing on the FD's hard tubing is slip-fit. OEM ID is 6 mm, 1/4" = 6.35 mm, which in many cases required plastic tie-wraps to secure an air-tight fit.

I have had absolutely no trouble from my vacuum hose replacement job. Same hoses are still there at 113 K miles and 15 years later - job was done at 72652 miles on odometer. I even repaired a broken OMP plastic line with the 1/8" Viton, which has lasted since 2009. (But at this overhaul I am replacing both OMP lines!)

Hope this helps.

 

Good call on the 99-spec, will be better for your setup

 

^^ Agreed. No need for BNR's if you are staying at stock boost levels.

 

Car, twins, and OMP lines are now at Neptune Speed.

 

just want to say good call on switching to 99 turbos. It would be a big leap to go with the BNR's in the sense that you were used to the turnkey nature of stock ECU and now you have all this new complexity going on.

 

Glad to see all the love/$$$ spent on rebuilding this great car.

When it's all said and done please let everyone know what your total invested is as that will help others with the question of rebuilding or selling.

 

... Well, not all said and done yet of course, but at the moment I have given Yoshi a deposit of $2K for up-front parts like gasket set, etc, paid $2560 for the 99-spec twins and $114 for the OMP lines kit, and Yoshi has quoted $2500 for overhaul labor. Remainder depends on undiscovered parts replacement requirements. Will report back when the FD is back in our garage, probably late May.

 

My guestimate is $10K by the time its all done.

 

Yoshi sent that engine is now disassembled and he is checking parts. (05/09/2017)

He reports:

 

^Given mileage and age I'm not surprised. Consider picking up a brand new Mazda crate engine, Ray Crowe tells me he has been selling quite a few of them lately

 

Agreed, and I believe Rotary Reliability and Racing has some brand-new engines as well, although I can't recommend them for the work.

 

order new one from either Ray or IRP $5k or less you get a brand new small block down to the last bolt .

also if you need a brand new OEM clutch kit , I happen to have a set just sitting at yoshis shop ... I can hook you up
I think yoshi might have mention it already. if not. there you go

 

Will see Yoshi today (05/10/17), look at the parts, and make a decision... I trust Yoshi to send me in the right direction.

 

I sent a message yesterday which was posted then, but now it's gone... what happened?

 

I sent a previous message that somehow disappeared from the Forum, so here it is again:

Based on Yoshiya's display of our FD's engine, which needed both rotor housings and the intermediate housing replaced, in addition to some other stuff, I decided to buy a new "short block" from Mazda. Yoshiya ordered it from Ray Crowe. Attached below is a pdf listing of all the needed parts and labor charges. I did add a little to it, but it's nearly a final firm quote. Adam C's estimate in post #93 was eerily close! And hopefully, per Fritz Flynn's post #91, this listing will help others predict a similar pricing for their car.