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| Falcon_92_EB |
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I only have one problem with this.
If your going to run an air box or plentum and piping was the ITB conversion worth it? Because i thought the ITB's were for instant throttle response and power, and an airbox or plentum will defeat the purpose wont it? Plus with the airbox or plentum it wont look as good as it dose now... |
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| dsyfer |
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The only difference in the setup will be no ram tubes, beside in the mean time the way it will be built will mean I can swap it for the ram tubes in under 5 minutes, for dyno runs etc.
But it is in preparation for adding a turbo to the ITB's, it will still retain the ITB characteristics eg: throttle response, but have the added benefit of boosted mid/top range. Interestingly, I just took it for a drive with the straight pipes as in the above photo, now they are 44mm ID so the tune would have been quite rich in spots, but it had surprisingly good response, torque and power. Obviously it lost power up top due to flow restrictions, but the low to mid even being rich as s**t would have been on par, and with a bit of adjusting the fuel map probably better. Which would suggest that the current 48mm are too big for the current head/cam. So with the turbo setup it may pay to keep the runners at 44mm for the most torque off idle, thoughts anyone? |
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| SV-Valiant |
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Who cares if you lose some power it looks really cool would great on a show car
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
lukas_bartko wrote: I only have one problem with this. If your going to run an air box or plentum and piping was the ITB conversion worth it? Because i thought the ITB's were for instant throttle response and power, and an airbox or plentum will defeat the purpose wont it? Plus with the airbox or plentum it wont look as good as it dose now... with a well designed plenum it will make more power |
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| cuppas |
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basstrom_dave wrote: sounding nice mate, almost look like one of the socks is gonna get sucked in lol. Seriously though, great work all round we have a precog is there going to be a new picture of what the intake will look like? im having trouble figuring it out from words alone 
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| dsyfer |
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Seeing as the Aussie $ is doing so well, I have been thinking of some turbo parts
Looking at a water to air intercooler, I think now the aircon condensor and drier are gone i could fit a log style intercooler in behind the front bumper.  Water to Air Intercooler - 14.5"x5"x4.5", Long Flow (Type 19) Including postage it works out to $269 AUD, or $265 USD 
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| Slick |
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dsyfer wrote: I am going to lathe up an inside radius die, then press the runners into shape, then press and form it over a 3" solid bar, so I will be able to keep the round plenum and have the smooth inner radius, as in that T-piece  Runners cut, need to shorten the bend in the heater hoses, then it should fit nicely.  Will you still use the bell mouth stacks? I reckon air velocity will suffer a bit having it straight like that. probably use shorter stacks like the plastic enclosed setup you've posted. For the enclosure, probably have the stainless or mild steel sheet rolled to form a half drum. you can even run the two intake primaries into a larger collector then into one. you'll have extractors for the exhaust side then there's the intractors for the intake side. LOL Here's my poor mans cad program drawing to get an idea. 
_________________ Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!! Pakrat wrote: You can buy them seppertly
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| FAST-XR |
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something like this
_________________ 07 BF MKII XR6T |
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| dsyfer |
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If I was staying NA with it, the bellmouths might be benificial, however when it has boost, they would cause turbulence as Tickford_6 said earlier.
Mine will end up similar to how the runners come off of this plenum 
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| fg xr6 |
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Hey all these pics look good im so angly at holden bathurst was s**t! >( lol
anyway i own a FG XR6 and want more power out of it but i want to keep it N/A and i was thinking about an intake plenum so does any one know of good trusting websites i can go to? im not really keen to do to much custom stuff myself. |
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| FAST-XR |
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the FG intake plenum is already a very good unit, id be looking at other things first...
_________________ 07 BF MKII XR6T |
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| dsyfer |
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Old intake parts bin is getting rather full
  Picked up all the alloy to do the plenum this morning, cheapest I could find on ebay was $35 +postage for a 500mm length of 3" tube, local alloy place had some but had to buy the whole 6 meter length for $50, so will have a little bit of off cuts  I love banging metal , it's very stress relieving  Shaping a runner  Imagine there is a flat side where the runner joins  Started doing a test piece, and ran out of bloody argon, trip to BOC in the morning  Nearly finished flaring  runner and runner flange  Plenum body will taper from the back to front, made from the 3" pipe cut down the middle, and have a 3" opening pointing to the front left corner |
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| basstrom_dave |
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Age: 37 Posts: 410 Joined: 27th Jul 2005 Ride: Mazda CX-5 & 96 EL Falcon Location: Adelaide |
cuppas wrote: basstrom_dave wrote: sounding nice mate, almost look like one of the socks is gonna get sucked in lol. Seriously though, great work all round we have a precog is there going to be a new picture of what the intake will look like? im having trouble figuring it out from words alone haha lucky guess I'll call it. Can't wait to see this at dyno day
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| dsyfer |
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basstrom_dave wrote: Can't wait to see this at dyno day I will have to do one run with the ram tubes and one with the new plenum, can't get much better comparison I guess More work on the plenum The runners will be welded on the outside  Then once welded, I can port the flange into the runner, for a perfect curve  I am going to try and get a little bit more flare before welding them. 
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| dsyfer |
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Time for a coffee and a plenum update:
Tacked into place  Welding 1/4 at a time to avoid any warping  Smoothing the insides  Yay it fits  Working out the body section   now back to work... |
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