Sex!!!!
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Very sexy! Go BEGI

I did speak with Corky and he is more than willing to modify a stock 1.6L casting. So I will have two prices, one for a completely new one and a separate one for modifying the stock casting. Hopefully that can save some a few pennies.
Stephanie

Awesome!

Keep us abreast of how it works please.

A 99 Intake Manifold w/ straight runners is being shipped out to a customer this week for testing. Hopefully, we will know something on this application in a few.
Stephanie

If you could ship me out a new head, without a snapped stud, and maybe a Corky to install it for me, I could go dyno mine :cry:

You'd want Tim. He gets things installed much faster. ;)
Stephanie

My '99 head swap is begging for this intake manifold. Want me to test one too? :)

Stock or built motor?
Stephanie

Mildly built motor. Forged rods, tri-coated OEM pistons, 99 head with some headwork and Supertech valves, and a GT2871R turbo with your log manifold and divorced gases downpipe.
On a sidenote, I'm assembling the head to the block this weekend and will be installing that assembly, but the car will not be on the road until my differential gets back to me as I'm having 3.636 gears installed.

so...has anyone used one of these and scored target boost at lower rpm, or a general gain? I have more than enough power and torque, but I'd like to shift it to lower rpm...and not have to cut my stylish FM hood.

I'm hoping to get faster spool coupled with greater top-end. I seriously thought I'd be dynoed by now, unfortunately I fail.

The next test car I need is a 1.8L running ~ 12 psi, GT2860/GT2560 Turbo with stock internals. Need to test the bent runner intake manifold.
Stephanie

I'd voluneer mine again if I wasn't 2100 miles away. It's exactly what you need! You don't want to ship one for independent testing do you?!?

Note: Thanks for the water T. How do you wanna get paid for it?

I'm going back out tomorrow morning to try to get this stud out without having to remove the head....Believe me, I want it tested just as much as you !!!!

ask paul thats what his daily is.

If you'll sell it at a discount I'll test it on mine.

Shoot me an e-mail!
Stephanie

Any results yet? I just read up on cat vs test-pipe dyno stuff and I think I'm going to go another direction. Did Corky or Tim ever discuss the possibility that this intake, in whatever form, will help move more air at lower rpm and get my tater spooled-up sooner?

If I bought up this intake, I wouldn't have to cut my glorious FM hood. Steve@Powercurve and I have an arangement worked out in trade, so I could get it on the dyno quickly.

I just paid my raping fee at the machine shop to fix my head and picking it back up today.

Hopefully in the next few weeks I'll actually get out to the dyno. Newbsauce will have his installed and dynoed in the beginning of May.

Sent you an email.:)

Not yet. I have three out there that should see results in a few weeks. The previous version only saw benefits at the top RPM range. So I do not know about the low end stuff. We will have to see.
Stephanie

:cry:
[hustler gets out the dremel and FM hood]

I don't particularly remember your build thread, but I'd look to the head for better gains in spool. The IM should (hopefully) solve the top end drop off seen with the stocker. I wouldn't know though, its 25 degrees here so my manifold isn't on yet :)

You
http://i40.tinypic.com/n18d93.jpg

Paul
http://i39.tinypic.com/i78twj.jpg

And to further show that lack of drop off... my 1.6l with a custom IM.
http://i295.photobucket.com/albums/m...otta-dyno1.jpg

those rpm #'s are not accurate. It hitting max torque at 4krpm, and 15psi there too. I know it could be better, but I think it may be fast enough. Its "orange gt3rs-fast" on a highway roll in 3rd to redline in 5th. Once I get the new suspension on...it will hopefully "orange gt3rs-corner" too. I've heard that long-runner intakes help add torque down low, but then I look at that dyno and think that I can add more power and torque, but what about the additional heat and stress on the drivetrain.

I don't really know that I want to drive this car at its current power level on the track. You can ask anyone who's ridden, driven, or seen it...this car moves.

did the turbo spool-up any quicker? The ugly dyno could be my inferior tuning skills too. Why did I let it go that fat at 6500+ rpm again? I have more time on the dyno soon, maybe I'll jack with it then. I want to try a few things I've learned recently, and do a few loaded runs out of boost to perfect a few problem areas.

...nothing like trading parts for dyno time!

that's your same turbo on a 1.6L (.86 A/R and all), with a chewed up turbine blade no less.

I've moved this to the appropriate thread. I really want to track my progress and thinking there for the next guy who does this.

https://www.miataturbo.net/forum/t30388-6/

now, back to the intake plenum discussion.

The Intake Manifold for a stock NB is off today. The end user will install and test it shortly!
Stephanie

nice

any results come in from other testers?

+!

bueller? bueller? anyone? bueller?

To my knowledge, two are being installed now. One is installed and one is waiting for warmer weather. I will let you know as soon as I do. Promise.
Stephanie

Mine installed again, hopefully next weekend i can get it running again and dynoed soon:

http://www.boostedmiata.com/projects...tall%20014.jpg

Steph, do you think it's possible to do something for my 99 that won't give me a CEL? You know the car; 99 S4.

Boo on not making it EGR compatible.

I don't know right now. Corky is complaining about making it EGR compatible, but I think he will on the production version. The test piece will not have an EGR on it. So unless some other strange code comes up, it might work.
Stephanie

Might want to upgrade those zipties holding your throttle cable bracket on first. :giggle:

I'm pretty proud that those are the only two zip ties on my whole entire setup.

Finally got the car running and slightly tuned.

So far initial logs are showing I'm making my boost target 600rpm sooner in 4th gear (3400 vs 4000). Otherwise it's raining and my butt dyno isn't very sensitive so that's all I have to report.

I need to tackle a few small things and then get it inspected, I'll try to get the kinks worked out and out to a dyno in the next few weeks.

:eek: I hope the final logs show that or better. :x: Wow.

here's today's log:

http://www.boostedmiata.com/logs/int...fold_boost.png


vs the dyno just before the car got parked for the winter:

http://www.boostedmiata.com/logs/sto...dyno_boost.png

Woa

Braineack, if you don't mind saying, what diameter is the plenum and what diameter tubing did you use for the runners? Also, any pics of the insides/velocity stacks?

Thanks,
--Ferdi

4" plenum, 1.75" runners (6" long from tip to tip)


the rest of the pictures are here: https://www.miataturbo.net/forum/t28417/

x2
can't wait to see the new dyno plot

Thats interesting, 1.75 ID or OD?

We made progress with newbsauce's IM today.

Since we used a 70mm 4.6L Mustang TB, it made the IC routing, interesting. I had to run so it didnt get finished :P

http://lh5.ggpht.com/_1e0LErGrZNY/Sc...0/DSC02402.JPG

http://lh6.ggpht.com/_1e0LErGrZNY/Sc...0/DSC02404.JPG

http://lh6.ggpht.com/_1e0LErGrZNY/Sc...0/DSC02410.JPG

Wow! Looks Great!

Any idea on gains??

15 psi by 3300 rpm, Nice!

I need that IM!
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+1!

When my timing was retarded 10* and it was only 40*F out it seems.


Got to tuning this weekend. spool seems normal, butt dyno isn't sensitive enough to tell a difference from before, so once we finish brad's IM well both go dyno.

Did you change injectors? Ur Duty cycles go from a max of 85 to a max of 42.

I'm using an adjustable FPR. since my DC% was pretty much maxed before, I'm running around 40psi at idle, and it's making 55psi at atmospheric.

What's the thought/science behind the rapid reduction in the middle of the runner vs. a long taper from plenum to port?

i believe the idea was to increase velocity.


i forgot, i have a 2.25" gutted cat in place of my test pipe right now, so i cant compare apples to apples. i guess i should swap that out tonight. but that earlier datalog is no good still, timing was way off and i had a leak at my TB.

Picked up all the hardware to block off the idle valve port on my I/C pipe, and some stuff to make block offs for the mustang TB. Made a little template to block off the mustang idle valve port, but needed stronger material. I should have it all buttoned up tonight, but I probably won't get around to tuning and logs until this weekend. :)

http://i39.tinypic.com/swbceh.jpg

I was wondering, because the only other place on saw it was on the eBay manifold.