RAM RHO HO Downpipes with High Flow Cats +100hp!
- Thread starter PinnacleBuilt
- Start date
Pretty dialed in. Did 3 different variants and I have my winner. The math checks out and I like the flow path plus installation will be much easier. The transitions and diameters minimize pressure drop and turbulence whilst reducing EGT's (there will be testing to confirm). We've addressed the as many as 6 restriction points in the OE design and lessened that to 2. One at the cat and one at the transition to the mid pipe both of which have a substantially lower pressure drop compared to that of the OE design.
Had to order tooling for the dumb v-band at the exhaust connection as well as material to machine the flanges, also dumb because they exist nowhere except on some heavy equipment cast exhaust manifolds. So high five to Stellantis for making it a PITD, Garrett too.
I should have a prototype set built next week once everything arrives. Then it's test fit, which should go smooth considering the scanning and build process, nothing extends outside of the oem part. Test fit goes ok, then build a jig and order tube and more material.
Once I have everything we build a 1st article and test fit to ensure the jig and tubing is set up right. Once that clears we are onto production.
Soooooo. I'm dependent on other companies namely CNC tube benders and probably the machine work on the turbine flange. We'll build the first set in house and then source it out with our CAD file. It's actually cheaper that way. If things go well and fast 4-6 weeks and sellable inventory in stock. If they don't..... longer lol
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I can't tell you how much I anticipated to hear that info., you are doing the lord's work!
maybe these guys can get you some flanges quicker / cheaper?
5.2" 04.5 Ram 2500/3500 Cummins Turbo-Side Downpipe Flange
AGP Turbochargers, Inc. founded 2002, best pricing and service for all your Borg Warner, Precision, and Garrett Turbos. Including installation parts such as flanges, gaskets, tubing, and silicone.
agpturbo.com
Getting closer
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Fixtures almost done.
Though I never had the skills you have, I did some exhaust design and fab work many moons ago and miss having that setup available! Jealous!!! Looking great, and I really can’t wait to see your finished product!
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Im kinda new to the tuning world as I usually just do intakes and exhaust to improve sound, but with this truck I feel the need to also do a tune and downpipes lol...stupid question coming next...are these downpipes Carb legal in CA? I already have the MF xMOD cat-back and will be getting an intake soon so I figured a tune and downpipes will really wake this thing up...even more.
EDIT: never mind, just read the whole thread...for sure these would be illegal in CA...damn CA
EDIT: never mind, just read the whole thread...for sure these would be illegal in CA...damn CA
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That's amazing....
Oof… there’s a lot of no bueno going on with his…
The pipe fitting, the transition, the material, and of course those welds…
Building your own and charging money for your products / services are two completely different things.
I applaud anyone trying to build stuff but sending that to a customer is a no for me dawg.
Be wary of anyone who doesn’t show you pics of their finished products or work.
There’s just too much of this
out there.Attachments
Hang tight, changes are in the works and us CA folks may be finally free!
How are you liking the MF xMOD cat-back? Do you have any sound clips? What mid pipe setup did you go with?
Thank you
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Trolling for updates... This is one piece that I can not wait to see completed. I used to have a 06 Mitsubishi Evo IX with a full turbo back exhaust. Fixing the flow right out of the turbo should make some good power and add to the exhaust note just a bit.
Bam!!
Truly a work of art my friend!! I applaud you taking this on as well. The only other thing I can say is...I want!
I'll have the other one done tomorrow and hopefully both installed on Friday. Then I can do sound clips and datalogging this weekend and dyno next week. Then I'll open up a pre-order. There will be 11 available in this first run, unless the demand exceeds that really fast then I'll order more product/material to meet said demand.
In the flesh so to speak…
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