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Best t5 inlet manifold upgrade

39K views 163 replies 15 participants last post by  EngTech 
#1 ·
I'm interested in finding out which inlet manifold is the best for the T5/ST 225 (they have the same engine). Right now I'm leaning towards pumaspeed because it looks almost stock and yet claims to have a balanced flow pattern, but it also seems that the boxer designs (elevate/Auto Specialist) would increase low-mid range power due to the increased plenum size for immediate on-demand supply. Another consideration is that I will be keeping the stock air box so whichever inlet needs to fit. Thoughts?
 
#140 · (Edited)
Two cold starts - One is way Smoother , little Deeper .. ( This one Lit the Cat - Fast )

The Other one sound tinny and raw Fuel into Cat . .

Nice - must be getting More Oxygen . . Why do all those Cars have Pumps ? :p

Here You able to Tell amount of material Removal just Compare the Two Outlets . .
Not Polished Yet and Velocity Stack Improve Not Done - Yet . . ( Just for Material Comparison )

Puma Plays well with this as in - Itself - is a Velocity Stack - using Air Speed as it's Friend .

All Intakes and Exhuast have Pulses - it's getting that Pulse into Plenum & Into the Lower Outlets .
( Stacking the Odds ) sort of Speak . .


 
#142 ·
Smooth as butter.

Just doing some basic testing for now like what was suggested. Mostly sitting idle and some revving (up to around 3-4k for now). Letting it cool off and then starting her up again. Nothing crazy yet as I haven't actually done work like this before and I want the new gaskets to get acclimated properly. Think bedding brakes, but over a longer period of time.
 
#149 ·
You have to Invest Your Time & Study - I read 3 Dissertations 97 Pages , 142 Pages , and 319 Pages .. Air Flow , Super Sonic Air Flow
, Hyper Sonic Air Flow , Heat Calculations , etc.

An Invested in some Good Tools these are Old Tools here :
Growing Up with a Grand Father who had a very Large Garage - Full of Mechanics - He Raced as a Young Man .

20 Yrs. Hanging around Fabrication Machine Shops didn't Hurt to much ..
40 Yrs. of Playing with Engines , Intakes , Bikes, Cars, and Mechanical Devices .

Investing Time & Tools

 
#151 · (Edited)
Look , what I'm saying is You have to Invest the Dime & Time .

Basic Tools needed . .

Hyper Air - Guy was going Off about this Theory and Leading Edges - experiments - basically trying to confuse the goverment
so He could get more Grant money . .

Super Sonic was OK - Turbo Stuff - was Cool , Volutes & Tongue - Area's

Air Flow - Heat - Dynamics's was good - all Flow in Pulses for Motors . .
 
#152 ·
#154 ·
If that's the case, then ca residents are S.O.L. unless they have a C30/S40 (certain years) and buy the K&N typhoon air intake system. Even though I'll stay stock upper inlet, I think I'm still going to get a newer c70 lower inlet ported/polished by a shop.
 
#155 ·
I thought your previous intake manifold went undiscovered though?

Sent from my XT1575 using Tapatalk
 
#161 · (Edited)
Btw, just discovered that in addition to K&N's typhoon kit, the Injen intake kit is CARB exempt. Now there are 2 options for CA residents.

Okay backup a bit: just called Injen and they said that the CARB application is 'pending' so there's no CARB EO#. Also, and more pertinent for CA unicorn owners, they didn't apply for the V50, only the S40/C30. But they said that if I sent pictures to them they might reapply.
 
#162 ·
#164 ·
No there is No Difference in Mounting , but there are some Tabs on Top for Mounting the Stand Off's - Used to Mount and Attack the Intake Tract ! - which Holds onto the Mass Meter Support . . As RS Owners - Blew up their Plumes - Over Boosting 27 -30 psi . Spikes ! I have a Plume which has been Port Matched to the Thermal Gasket of Don's - get can be Done - but Be Very Careful . . as the Material is Tricky and Grabs Tooling . .
 
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