2003-2008 FX45 Modoholic WISH LIST

All of you 03-05 guys should get that later front fed plenum asap! You'll need the later intake tube (z-tube equivalent) as well but I bet you could get the TB harness to reach sans modifications.
 
Would this be because you are designing a Performance intake manifold for us too? I would have to come with the reality of loosing the MR, for a much more efficient and higher HP plenum. I could do this, but it would have to be feet over the head better than a ported and polished stock.
 
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Slamming45 said:
Would this be because you are designing a Performance intake manifold for us too? I would have to come with the reality of loosing the MR, for a much more efficient and higher HP plenum. I could do this, but it would have to be feet over the head better than a ported and polished stock.
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No no no. Its because the later manifold is a far superior design. I've never even considered designing a 45 plenum. Hell, I can't even finish the one for the car I actually own! :p I don't know about how it would compare to a p&p side fed unit.

Can the MR be adapted to fit the newer 45 plenum?
 
+ 1 on Tim's 45 intake assessment above. I think I addressed this (maybe in my garage) my tech went over the 45 head and intake designs (06+) with Jim Wolf and a Boeing engineer (that did the magnaflux check and microscope exam on my new head and valves). They all agreed the heads are very well designed and that the manifold is excellent with porting and polishing it will provide you with more flow than you will ever use. Next step would be FI.

Really if you could find an 06 manifold in a yard AND a TB (to port) you could mod them on the side then pull your oe units with no down time then start a member TB core exchange. That was my original Plan but as you know my build timing has gone sideways.

Both purchases with mods should be under 1k. With regards to the TB I am very near the testing stage (again). If you can wait two week you will have a solid write up to work off.
 
Good info here! This is exactly where I wanted this thread to go. So Wolf and the engineer said the 06+ design has more than enough flow to feed the VK with a some clean up work. That addresses a performance manifold. Now my question would be If you were to swap an 03-05 side fed, to the front fed more efficent design. Would a composite VK56 plentium be something to look into, if one were going to invest a G anyway. Is it even possible that it would bolt up? This kinda goes into the territory of, the Stillen supercharger might bolt up to the VK45 because we share the same block, but no one has tried. Judging from QX56 we had taken apart at the shop, the VK56 plentium seemed to dwarf the VK45 plentium in size. Not to mention it is composite, which would drastically reduce intake temps. Doing some research, I've seen people swap out their VK56 heads for the vk45 heads, saying that the have been proven to flow better. But they leave their Plentium. I have only been on the scene here for less than a year, I hope u see that I am passionate about modding, I'm just looking at different ways to possibly Increase HP. You guys obviously know way more than me, regarding this platform. Please take a look at the pics, or do you know, Thoughts?
 
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I think I read somewhere that the bolt spacing is different between the 45 and 56. I can't recall for sure but its something to keep in mind. The later 45 plenum is really similar to the 56 unit though, and would surely bolt right up. It probably runs the same TB as well...
 
True, just can't shake the thought of composite being a better option for less heat. I did find this project that Jim Wolf started for the VK45 but got put on the back burner. Just wondering why he made a Performance IM if the OEM flowed more than what you would ever be able to use?
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Two reasons; First, flow potential aside, longer runners make more low end torque at the expense of top end HP (not necessarily better, but different). Second, he's a salesman. ;)
 
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tchuck said:
Can the MR be adapted to fit the newer 45 plenum?
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Yes it could but, haven't had luck getting anyone over to the lab for fitment, Luckily Andrew just recently aquired a 06+45. Living so close I would love for him to give me an oppertunity to try. I kinda loss some steam since Lance has been happy with his Injen.

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tchuck said:
Two reasons; First, flow potential aside, longer runners make more low end torque at the expense of top end HP. Second, he's a salesman. ;)
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Ah... I see.
 
A better manifold can be made, better anything can be made but the flow engineering and engineering necessary to squeeze marginal gains for a motor (unlike the planned build in the pic) in the range we are discussing just won't need more. I will say this, if an intake is made, it looks amazing and kicks in another 10-15 WHP you know I'll be there :)
 
For reals. If i had Mr. Wolf's knowledge and facilities, I'd make crazy ish like that all day long. If it makes more power, sell it. If not, round file it and make something else. Even if it doesn't improve performance, it looks good in promo pics...
 
Logan said:
+ 1 on Tim's 45 intake assessment above. I think I addressed this (maybe in my garage) my tech went over the 45 head and intake designs (06+) with Jim Wolf and a Boeing engineer (that did the magnaflux check and microscope exam on my new head and valves). They all agreed the heads are very well designed and that the manifold is excellent with porting and polishing it will provide you with more flow than you will ever use. Next step would be FI.

Really if you could find an 06 manifold in a yard AND a TB (to port) you could mod them on the side then pull your oe units with no down time then start a member TB core exchange. That was my original Plan but as you know my build timing has gone sideways.

Both purchases with mods should be under 1k. With regards to the TB I am very near the testing stage (again). If you can wait two week you will have a solid write up to work off.
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I am thinking of buying a spare M45 intake manifold, what kind of work do you recommend? Would a tune be required after? Anybody want to start some sort of service with the spare?
 
I'm drastically overstepping my knowledge and experience here, but you could start with smoothing out the casting relics and enlarging the inlet to accommodate the 3" TB that you're about to have made. ;)
 
My thoughts exactly on using the manifold and the TB as a core or spare. I'll get a write up from my tech re: how much he removed during the port polish process. Also both the top and bottom of the manifold were chromex coated. I think you may be looking at a tune, my set-up includes the bored TB but regardless it was running so incredibly lean I'm betting it will need something.
 
Spare intake manifold purchased!!

Which is better, extrude hone or porting and polishing?
 
I like how you roll Jeff......detailed questions have been asked I'll most likely set you two up. The opportunity may exist for my guy to do a GB intake port /polish BUT I think shipping may kill it. I'll get the costs broken out so we can see.
 
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