OK, the Blaine Fab duct plenums are ready to order. Patterns are made, production alpha fits fine, materials are in stock, I'm cutting and welding all weekend so kits will be ready to ship next week.

All aluminum, TIG welded .100" and .065" thick 6061

New ARP hub fasteners included

3" stainless steel hose clamps included

The plenums will fit all known brand hubs EXCEPT the Timken newest wide body hub. I recommend SKF brand hubs.

Install is no more difficult than a hub swap - in fact easier, since the hubs do not need to be removed

Plenums fit tightly (approx 1mm clearance to rotor) to the entire inside diameter of the inner rotor cheek, forcing the cooling air into the internal vanes where it can cool both inner and outer rotor cheeks.

Cooling air also circulates around the hub, and the aluminum plenums act as heat sinks for the critical bearing area of the hub.

Accepts standard 3" brake ducting - ducting not included. Since most cars will already have ducts of some form installed, ducting is not included in the kit, but is available as an option, or may be sourced locally.

Immediate releases will be for 2 models: the LS1 caliper on LS1 upright, and C5 / base C6 caliper on a LT1 or LS1 upright using Trackbrackets or similar brackets. Duct plenum kits for other popular brake packages will be released soon. Custom and one-offs available, contact me for a quote

Each kit includes a left and right pair of duct plenums, all hardware necessary for the application and two 3" stainless steel band clamps.

Standard kit pricing:

LS1 on LT1/LS1: $355 plus shipping and CA sales tax if applicable

C5 / base C6 on LT1/LS: $295 plus shipping and CA sales tax if applicable

4th gen Fbody with Dulaney brackets: $355 plus shipping and CA sales tax if applicable

Payment via PayPal is preferred - call me at 831 427-3296, email, or PM me with model and ZIP for shipping quote, then PayPal to: ablaine (at) cruzio (dot) com

Some pix:









Recommended duct routing and things that help them survive:

shorten swaybar endlink till bar ends are parallel to track, then trim top of bolt end.

Wrap duct with gaffers tape where it passes thru the inner fender liner, where the tire tends to rub, and at the endlink.

Avoid full lock steering

squish the duct about 1/2" at the point where the tire will rub - add a wrap or 2 of gaffers tape here as wear happens

use wheel spacers to increase track width

Duct in pics has been in service for a full CMC season:



edti: intro offer expired

edit: price increase 5/22/2014

Good stuff Alan!

Same Idea, but a little better executed than mine!

This appears to mount between the hub and the upright. How thick is the material in this area? When working on my redesigned hub, I found that I only had about +/- .040" before the rotor was dangerously close (or contacting) the pad abutment bracket. This would move the hub and rotor out but at least 0.065" if I read you post correctly. Do you provide spacer washers for the PAB as well to compensate?

Minor observation above aside, I really like the idea.

Nope - look closer. Mounts to the stationary part of the hub.

Still #1 in line - Alan, I'll contact you about payment along with the spacer data in the next day or so...

So the longer bolts extend through the housing base and then the nuts I see in the pictures secure the duct plenum? If so, cool.

Put me down for a set.

You have my PM

Fortunately, the hub holes are threaded cleanly all the way thru, so a little extra length on the hub bolts leaves 4 studs available. The nuts you see are class 4 thin jam nuts on the .100" thick backplate, with instructions to tq lightly and locktite, so no effect on the hub clamping force.

Very nicely done.

It was nice talking to you the other day Alan. Still can't believe you can fit so many cars in your shop. As I mentioned, please put me on the list. I will stop by to pay in cash in the next week or so. Jae

I held off buying other ducting for yours.

When will you have an 1997 Z28 LT1 kit ready?

When you upgrade to LS1 brakes of course!

Hmmm... I never considered that you would be wanting to get performance out of the stock LT1 brakes. I do have a donor car at the shop with stock brakes - I'll take a look tomorrow and see if it can be done. The challenge will be getting enough cross section on the transition from the 3" round to the inner hub area past the upright. The LS1 12" rotor is pretty tight but I do get enough area thru. The stock rotors are even smaller would be tighter getting past the upright.

Worst case, if I can't make them, there will soon be plenty of conventional "shoot the air at the inside rotor face" duct setups on the used market.

I am in Canada running Autocross. Our classing up here would bump me if I changed the brakes althought they are free at the track. A full track pad for Solo Sprints works pretty good on the stock brakes but cooling would help.

Are brake upgrades legal in SCCA ESP? We may be moving to your rules next season.

My ducting on the front air dam may only be 2 1/2 inches. Have to check. If 3 inch is a problem would 2 1/2 inch be possible? I know I would be losing a lot of air.

I am also using 16x10 rims. Is there a greater clearance issue for me? Anyone else running this size?

Ahh, rules. I thought that may be the reason. I don't know about brake upgrades in ESP, but the SCCA Solo rulebook is on line at SCCA.com

I checked the stock LT1 brakes, and the rotor ID is 1/2" less in radius than the LS1 rotor, so really restricts how much air I can get thru into the rotor hub. I agree that a 2.5" duct would be a better match to the restriction and lower airflow, and for the clearance from your 10" rims. I can build the duct plenums for you, and supply 2.5" ducting if needed. It would be better than no ducts, but probably not the magic bullet that makes the stock LT1 brakes wonderful. Your cost would be $275 plus $16 UPS gnd shipping for the plenums, and for 12' of 2.5" duct $72 plus $6 additional shipping. I can't do the intro discount on this since I would have to buy materials that I don't expect to ever use up. Total PayPal $291 without ducting, $369 with ducting. Your call whether good ducts are a better bang for the buck than holding out for a rule change and hardware upgrade.

swapping over to the '98+ 12" front setup is legal in ESP.

C5 on LS1!!!! C5 on LS1!!!!!!!!! cmon!!!!!!!

Thanks for the quick reply Alan.

I was looking fo help at our National Solo Sprint event at Mosport in October but I suppose the smart thing would be for me to wait for the rule change next year and upgrade brakes and ducting at the same time.

Maybe like you said, some might have the "other" items avaialble in the next week or so. PMs please.

Yeah!!! That's when my "conventional" ones will be for sale :-)

996 on LS1?

Just wanted to take a second to let everyone know that these things are awesome, they bolted right on and fit and work perfectly! I really belive they were a big help in my podium finish at the Nats, it is nice to know that your brakes are cool coming down that hill into turn 4. WooHoo. Thanks Alan

will this work w/ a Porsche 996 brake setup ?

Alan is making a setup for my 996 brakes!

Are there any plans for a C5 onto LS1 setup?

I fabbed them up for Johns car using the steel 2bolt brackets, and upgraded the 2 hub bolts that hold it on. Do you want a set?

What brackets are you using? If you are trimming the upright bosses and using the Trackbrackets then my C5 on Lt1 set will fit. If you are using LG or other brackets that clock the calipers then I'd have to do a new model.

I'm using Kevin's trackbrackets on LS1. C5 Corvette Rotors. That's all I did was trim the boss (originally for Baer GT+, but now using Trackbrackets)

Then you're set - the C5 on LT1 will fit.

I'm using the Trackbrackets setup, so I guess it should work for me!

Thanks!

have any pix ? interested... hell yeah !
just wanna make sure it'll fit w/ the new bracket design that holds the calipers.
Thanks,

Eugenio - Can you post a pic of the bracket you are using? All of the BlaineFab duct plenums look very similar to the LS1 set in the opening post - there are only variations in OD and the position of the caliper clearance offset.

Yeah... I have a set of brackets and hub not on the car... I'll mount them and take a few pix and post them... hope that will help.

Eugenio - Here's some pix of the Blainefab duct plenums on a Porsche 996 brake setup. Note the bracket bolts have been upgraded to 12mm.

From what I can see... it won't interfere w/ anything.... since it goes inside between the spindle and disk.
Anyways, I'll see if I can snap some pix asap.
Thanks for those pix.

Ok, might be changing cars.

Where do I find rotor ducts for a 85 Camaro with 1LE brakes?

I'm working on duct plenums for the 3rd gen with a LS1 or C5 upgrade, but there is no room to get them into the stock/1LE 3rd gen brakes. I could whip up some simple ones that directed the cooling air at the inside face of the stock rotor, but they would not be as effective as my sealed plenums.

I don't mean to jump into Alan's thread, but I've got the thirdgen ducts available. I've got the 3rd gen spindle digitized, and have prototypes for the 1LE, LS1, and C5 conversions (they have different rotor locations and rotor ID's, so each spindle duct plate is specific to the brake kit). There isn't as much clearance with the 1LE rotor (compared to the C5/LS1 setup), but they are still sealed to the center of the rotor, so all the air is forced through. We're getting backing plates waterjet cut this week, and I'll be TIG welding the beaded 3" hose nipples if you need a set. If you need them right away, you're welcome to the prototypes, and we'll just exchange them once I get the production ones completed.

Are these still available for 4th gen stock LS1 brake setup?

Yes they are, PM me to order, or call me at 831 427-3296 evenings or email me at ablaine (at) cruzio (dot) com

Not to hijack, but I wanted to report a favorable outing with Alans plenums which I ran at the recent NFME at Memphis which has a couple of hard braking zones.

I completely rebuilt my C5 front & LT1 rear brakes to include Alan's plenums on the front and Carbotech pads and they performed flawlessly. I never had even a tinge of fade with ATE Super Blue fluid.

I just love stepping on the brakes and knowing they are all in.....

I had passengers for all of my runs and they all commented on the sure braking.

Now its back to work on the brake hop however......

Thanks Alan.

Bock

Thank you, Bock! Feedback is always welcome, especially the good kind!

Jason can fix you up on the axle tramp: info@UnbalancedEngineering.com

I've added 3 new versions of the Blainefab duct plenums for popular aftermarket 4th gen front brake setups:

Wilwood 140-7190 6 piston SL6 with 12.9 x 1.25" 2pc rotors

Stoptech ST-40H 4 piston with 332 x 32mm rotors

Baer/Alcon with 13" x 1" rotors

Baer 6R with 14" rotors

All versions include new hub mounting bolts and other hardware, plus 2 stainless hose clamps for attaching your ducts.

All new versions are $295 + shipping + CA sales tax for deliveries in CA.

Duct hose and NACA ducts are also available.

Here's the Wilwood duct plenum:

YES - Definitely call Jason... :-) His TQ arm will solve all your braking woes... and you'll even like the better handling and accel from it too :-)

Anything available for ls1 Camaro with the Prospeed (Porsche caliper and rotor)kit?

Yes, I've built several duct plenum setups for the ProSpeed brakes. I include upgraded 12mm hardware for the bracket attachment, ref: http://www.frrax.com/rrforum/index.php?sho...=10173&st=0

$295 complete with all mounting hardware and a pair of SS 3" duct hose clamps.

Finally put mine on for the last race of the year this weekend, especially since we're at Eagles Canyon.

Fantastic kit and I look forward to putting the car on it's nose. More good feedback on Monday.

Rediculous.

I had some brake fade in the last race at the Hallett event in June and since I was going to flush and re-pad, I put the ducts on while it was apart.

Raced this weekend at Eagles Canyon and although several folks had some fade issues, I had absolutely none. Carbotech XP-10 in the front, stock in the rear and running fresh Castrol LMA. Pedal felt better through the weekend than I ever remember over the two years racing the car.

Simply fantastic; why did I wait so long to put them on?

Another satisfied customer.

Hi Alan. I'm interested in your your 14" Baer setup. That should suit my custom 14" Brembo setup. Put me down for a set please with shipping to 30041.