Throttle body relocation?
Throttle body relocation? I've been building up an LT1 to use in a custom project I have, and in order for me to use it I would need to scoot the throttle body back roughly 2-3 inches. The only way I can see me using this engine is if I throw a carb manifold on there and run it like that, which defeats the purpose because other than the reverse flow cooling, it has nothing more to offer than the sbc I'm currently using. Do I have any other options as far as relocating the throttle body? (I was wondering if any aftermarket intake manifolds offer this, but it wouldn't make sense to me why they would)
I can't speak about aftermarket intakes (your only option is to convert a gen 1 FI intake to fit the LT1), but generally speaking if you keep the throttle body in a strait line from the manifold it shouldn't have any issues... problem starts when bends get thrown into the equation.
Can the OP post a few pics of where this is going? Maybe we can come up with some other ideas.
The rear mounted TB was something I saw with a roots blower on an LT1 years ago, not exactly a stock intake but seems to me if you have the room it would be easier than putting the TB right in the number 1 intake port as it would moved 3" back. I saw someone else modify an LT1 intake for two top mounted stock TBs but he never got it to actually improve anything.
The rear mounted TB was something I saw with a roots blower on an LT1 years ago, not exactly a stock intake but seems to me if you have the room it would be easier than putting the TB right in the number 1 intake port as it would moved 3" back. I saw someone else modify an LT1 intake for two top mounted stock TBs but he never got it to actually improve anything.
Launching!
Joined: Jan 2007
Posts: 233
Likes: 0
From: Mooresville,NC
How about a sheet metal LT1 manifold? I've been tossing around the idea for a couple years now. If anything you might end up gaining a few hp going this route and be able to move your tb to where you want it.
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If you have a sbc fi intake like a Victor EFI then you could use a sheet metal elbo and turn it around backwards. I have this Nitrous Outlet 860 elbow for sale lmk if you're interested.
http://i1110.photobucket.com/albums/...T1parts012.jpg
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http://i1110.photobucket.com/albums/...T1parts012.jpg
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Verdad Gallardo It's basically just for a ram air setup that I'm trying to properly set up. It's literally within an inch from the opening of the hood scoop, and I need at least a few inches to run some ducting and a filter. I planned on using a MAP sensor so I wouldn't have to worry about the MAF taking up ducting space.
Throttle body in the rear wouldn't work for me, because the engine sits really close to the firewall, and the hood latch wouldn't allow for it (reverse hood). And I'd love to build a sheetmetal intake, but that's out of my league.
97z28ss - Your idea has a lot of potential, but do you just use any sbc fi intake? Like off a vortec or something?
Throttle body in the rear wouldn't work for me, because the engine sits really close to the firewall, and the hood latch wouldn't allow for it (reverse hood). And I'd love to build a sheetmetal intake, but that's out of my league.
97z28ss - Your idea has a lot of potential, but do you just use any sbc fi intake? Like off a vortec or something?
It's basically just for a ram air setup that I'm trying to properly set up. It's literally within an inch from the opening of the hood scoop, and I need at least a few inches to run some ducting and a filter. I planned on using a MAP sensor so I wouldn't have to worry about the MAF taking up ducting space.
Throttle body in the rear wouldn't work for me, because the engine sits really close to the firewall, and the hood latch wouldn't allow for it (reverse hood). And I'd love to build a sheetmetal intake, but that's out of my league.
97z28ss - Your idea has a lot of potential, but do you just use any sbc fi intake? Like off a vortec or something?
Throttle body in the rear wouldn't work for me, because the engine sits really close to the firewall, and the hood latch wouldn't allow for it (reverse hood). And I'd love to build a sheetmetal intake, but that's out of my league.
97z28ss - Your idea has a lot of potential, but do you just use any sbc fi intake? Like off a vortec or something?
Oh geez, I'm scared to ask how much. That would be the setup I'm looking for, the only thing is I'd have to see how high that elbow sits. With the current sbc in there, in order to be able to close my hood I had to use a low profile air filter and trim the mounting stud to where it sits only an inch above the filter.
350 intake
150 elbow
350 tb
100 rails
400 injectors
200 plumbing
then machining.....
TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
Of course if you were handy you could fab up the elbo yourself and use the LT1 style TB. Also there is a few cheaper manifold starting points, they may not flow as good as the one used in the example above , but non the less they have the FI bungs already there.
The 860 elbow is one of the lowest ones you can get for an lt1 without causing too much of a restriction.
I have a better flowing intakeelbows piece for sale as well, but if you are worried about space the 860 is a better choice. I had one of those before selling it and it is a quality piece.
I have a better flowing intakeelbows piece for sale as well, but if you are worried about space the 860 is a better choice. I had one of those before selling it and it is a quality piece.
I also have a Vic EFI JR already set up for a LT1 and a 860 elbow. The elbow is a real nice piece and the intake is fully ported by LE with a N.O. custom spray bar. Still debating if Im going to use it.
as for machining youve got a couple options......easiest way to bolt one of these up is to machine holes at the new angle to use the outer 8 bolts with machined spacers to make the angle correct......then the middle four becuse of their location on mine i tapped my head for the sbc bolt holes.....the outers if i put them to the lt1 pattern i couldn't get them in because the position of the runner........hers a pic you can see the spacers i made to correct the angle......
