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Old 10-08-2019, 07:48 PM   #2801
Damonr
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Default Reverse Intake

Great tread indeed. Anyone comment on the "tuning" aspect of this mod? How does it effect "wall wetting"? Thanks!
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Old 10-14-2019, 03:46 AM   #2802
binny
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Quote:
Originally Posted by Scargod View Post
Nice! Clean. I see only one pic.
Did you use my idler and small alternator idea?
Funny how the radiator tank can go just about anywhere.
What small alternator did you use? I'm looking for a small alternator at the moment I was thinking of a Suzuki K class (660 cc engine) but was wondering what is the smallest size around
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Old 10-14-2019, 10:16 AM   #2803
Scargod
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Default Small alternator solution

Quote:
Originally Posted by binny View Post
What small alternator did you use? I'm looking for a small alternator at the moment I was thinking of a Suzuki K class (660 cc engine) but was wondering what is the smallest size around
Called a "15576", it is a common 50 amp alternator. I bought a connector plug for it and wired it in. I modified the alternator stand and ordered tensioner parts from McMaster Carr. The PS tensioner is a modified idler from the timing belt circuit.
My application is pure track car. I do not have headlights, but this does fine when paired with an 11 pound, 18 Ah, 310 CCA, sealed battery. I run my radiator fans on a dedicated switch for manual operation. This has worked fine for years. May not be adequate for all cars.

I can upload more detailed photos of the mods and process if you PM me here or glyn churchman on FB.
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Old 10-14-2019, 04:33 PM   #2804
Scuby04STi
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For people having issues clearing their alternator has anyone considered modifying the crank pully to have a stator/rectifier as to do away with the alternator all together? My dad did it on his old hot rods and I was debating doing it sense that is the only pulley left on my car just cuz.
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Old 10-14-2019, 09:25 PM   #2805
kellygnsd
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LINK G4+ hybrid STi

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Quote:
Originally Posted by Scuby04STi View Post
For people having issues clearing their alternator has anyone considered modifying the crank pully to have a stator/rectifier as to do away with the alternator all together? My dad did it on his old hot rods and I was debating doing it sense that is the only pulley left on my car just cuz.
Old hot rods also didn't have all the modern onboard electronics to run. I guess it depends on what your base current draw is ten figure out if your battery would ever charge with just an magneto
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Old 10-17-2019, 07:59 AM   #2806
Scargod
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Quote:
Originally Posted by Scuby04STi View Post
For people having issues clearing their alternator has anyone considered modifying the crank pulley to have a stator/rectifier as to do away with the alternator all together? My dad did it on his old hot rods and I was debating doing it sense that is the only pulley left on my car just cuz.
I think it would be impractical for most cars. It's not that hard to relocate an alternator. Certainly with my reversed NA intake it wasn't. It was mostly just modifying the alternator/AC bracket. The real issue is retaining an AC compressor.
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Old 10-17-2019, 09:39 AM   #2807
vicious_fishes
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just out of curiosity does anyone have a before & after a manifold flip? I mean simple intuition tells you it'll improve things, but i'm curious to see back to back tests proving by how much.
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Old 10-22-2019, 05:05 PM   #2808
Scargod
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Originally Posted by vicious_fishes View Post
just out of curiosity does anyone have a before & after a manifold flip? I mean simple intuition tells you it'll improve things, but i'm curious to see back to back tests proving by how much.
Probably won't happen. How many do just that and nothing else? I did a ton of things differently when I went from built block and stock intake.
Might try searching it.
I understand that the NA manifold has the injectors pointed at too much of an angle for a big power engine. Perhaps that implies that part of the problem lies in the spacers most people use. Spacers position the injectors abnormally high and they hit the spacer or the roof of the hear's passage, where the fuel gets washed down the wall and not drawn into the air flow as efficiently as it could be. Still, I manage 470 HP with 13mm spacers. My next engine, that I am building, with a NA intake will not have spacers.
As an aside, I have four NA's in my basement on top of the one that I've ready for my next big build.
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Old 10-22-2019, 05:12 PM   #2809
PDXREALTOR
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Quote:
Originally Posted by Scargod View Post
Probably won't happen. How many do just that and nothing else? I did a ton of things differently when I went from built block and stock intake.
Might try searching it.
I understand that the NA manifold has the injectors pointed at too much of an angle for a big power engine. Perhaps that implies that part of the problem lies in the spacers most people use. Spacers position the injectors abnormally high and they hit the spacer or the roof of the hear's passage, where the fuel gets washed down the wall and not drawn into the air flow as efficiently as it could be. Still, I manage 470 HP with 13mm spacers. My next engine, that I am building, with a NA intake will not have spacers.
As an aside, I have four NA's in my basement on top of the one that I've ready for my next big build.
I decided to not use the 19mm spacers this time around due to injector height. Mine were from ks tech and are shaped nicely to accommodate the head port profile. But still that's a lot of height ,19mm, and while I didn't see anything in the logs I can't help but wonder what effect of any the added height has.

I am now using 8mm spacers and 3/8" manifold to tgv spacers.
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Old 10-22-2019, 06:37 PM   #2810
Scargod
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PDXREALTOR, And the AVCS are clearing the fuel rails? Did you clock them as I suggested?
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Old 10-22-2019, 06:47 PM   #2811
PDXREALTOR
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What avcs? The lines or?


The only clearance issues I had was the back of the pass. Side fuel rail barely kissed my turbo inlet coupler.
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Old 10-22-2019, 09:22 PM   #2812
2slofouru
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My BOV goes
COVFEFE!

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Quote:
Originally Posted by Scargod View Post
Probably won't happen. How many do just that and nothing else? I did a ton of things differently when I went from built block and stock intake.
Might try searching it.
I understand that the NA manifold has the injectors pointed at too much of an angle for a big power engine. Perhaps that implies that part of the problem lies in the spacers most people use. Spacers position the injectors abnormally high and they hit the spacer or the roof of the hear's passage, where the fuel gets washed down the wall and not drawn into the air flow as efficiently as it could be. Still, I manage 470 HP with 13mm spacers. My next engine, that I am building, with a NA intake will not have spacers.
As an aside, I have four NA's in my basement on top of the one that I've ready for my next big build.
Which NA manifold are you referring to, obviously not the one the White Bullet used to run a 7, right? I'm not running spacers, not need for them with no avcs, of course my manifold wont' be forward facing either.
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