SStrokerAce, update on LT1 intake?
not jack this thread...RacePrep is onto something it seems alos with an intake for LTx motors
http://impalassforum.com/noncgi/ulti...c;f=1;t=007450
the damn price tag is what blows....leaves most of us in the welded and ported stock intake realm
http://impalassforum.com/noncgi/ulti...c;f=1;t=007450
the damn price tag is what blows....leaves most of us in the welded and ported stock intake realm
They're stating ~$1800 in the last post there.
I'm not going to knock anything til I see some numbers but I guess it's still free to speculate. No doubt some will be offended.....
Doesn't look like they're going to get too much runner with that intake, even if they extend them up into the plenum. The stock LTx is what... just short of 3", so hey I'm curious how much runner length we're adding there?
And runner taper? Just an extension of the original runner or a different port entirely?
I'm still putting my money towards the single plane carb intake and that's not to take anything away from the guys at RacePrep. Just my thinking as it stands.... and that's always subject to change.
-Mindgame
I'm not going to knock anything til I see some numbers but I guess it's still free to speculate. No doubt some will be offended.....
Doesn't look like they're going to get too much runner with that intake, even if they extend them up into the plenum. The stock LTx is what... just short of 3", so hey I'm curious how much runner length we're adding there?
And runner taper? Just an extension of the original runner or a different port entirely?
I'm still putting my money towards the single plane carb intake and that's not to take anything away from the guys at RacePrep. Just my thinking as it stands.... and that's always subject to change.

-Mindgame
By looking at that, all I need to do is go get some plated aluminum, box in the top of my existing intake about 1" to 2" higher for more volume, and add to the existing runners that is already there.
That's not worth $2000 in my book. That's not worth $1000 in my book, nitrous doesn't cost that much, and there's a lot more to gain than 40hp.
Welding wire and plated aluminum doesn't cost that much either.
just my .02
D Moss
That's not worth $2000 in my book. That's not worth $1000 in my book, nitrous doesn't cost that much, and there's a lot more to gain than 40hp.
Welding wire and plated aluminum doesn't cost that much either.
just my .02
D Moss
Is it going to be possible to retain cruise control with a single plain conversion? I am very interested in seeing how this turns out for you guys. I'm getting ready to do heads and cam and I may convert as well.
Adam
Adam
I'm not sure who got on the whole single plane idea, but this isnt a single plane we are doing.
If you put an elbow on top and fab up a way to mount a regular throttle body, then yes you could retain it. I don't remember off hand if 4bbl's have provisions for cruise control.
Originally posted by LeftoverChinese
Is it going to be possible to retain cruise control with a single plain conversion?
Adam
Is it going to be possible to retain cruise control with a single plain conversion?
Adam
I have been talking to Bret about this quite a bit over the last couple weeks. All I can say is that the design is extremely simple, not at all in the work the Bret does or how the intake performs but how easy it will be for someone to just drop this in and have fantastic results. With there currently being nil in the way for after market intakes for our motors this IMO sets the standard. With converted single planes you have to worry about elbows, cutting the hood/aftermarket hoods, different throttle bodies etc. In the long run alot of customization can come into play.
Race Prep's intake looks nice but the whole idea is to get away from the LTx casting. All the area's the LTx intake design lacks Bret improves as he already commented on.
I think there will be a waiting list soon if one hasn't started already.
Race Prep's intake looks nice but the whole idea is to get away from the LTx casting. All the area's the LTx intake design lacks Bret improves as he already commented on.
I think there will be a waiting list soon if one hasn't started already.

Originally posted by Mindgame
Way back up the thread someone mentioned the Vortec intake. Got me curious. Do you (poster of that suggestion) know for sure that that intake will work? GM builds a Vortec Eliminator intake (single plane like a Victor) so I'm just curious.
-Mindgame
Way back up the thread someone mentioned the Vortec intake. Got me curious. Do you (poster of that suggestion) know for sure that that intake will work? GM builds a Vortec Eliminator intake (single plane like a Victor) so I'm just curious.
-Mindgame
http://www.edelbrock.com/automotive/...ictor_efi.html
Jesus boss you're killing me with the long post but keep at it!
Thanks, it was a fluke call too guy dialed my number on his cell on accident, but either way good news.
Yep the Super Vic is perfect for most street small blocks, but yet so many people don't agree. Probably because they are not looking for 500-600+hp on a street motor.
Not telling runner specs, that's like cams specs boss ;-) The runners are longer and for the plenum well..... We filled it up with almost a 12 pack, but the problem is that we should have drank the beer first not after, didn't taste quite as good pooring it out of the plenum.
Yeah that's why I wanted to make something that will work, single planes are great but are not bolt in and since we are EFI we don't have wet flow issues or have to worry about fuel distribution.
Why thanks. I always think that way on things too, but when nobody solves the problem gotta make a solution yourself.
That is one of the best 23 deg heads I have seen in terms of power numbers. It really rivals most 18 deg heads in that department.
WTF castings are you talking about there? Hate to say I can't find them but I'm clueless. Not the 18deg 364,580 or 855 castings and not a SB2 or splayed valve, not even a Bowtie or Pontiac head..... got me
How about a 18X Brodix with a HR Cam and 427+ cubes......
Still I would go with a Splayed Valve and a Wilson Intake if I was going crazy.
Bret
Originally posted by Mindgame
Very impressive Bret!
Very impressive Bret!
Originally posted by Mindgame
Let me reword this in saying that IMO the Vic Jr, Super, etc have about the right length runner for these 6500-7000 rpm lt1 builds. Not only does it have the length, it has some taper. So it's gonna tune like you're saying but it's also not going to want to revert like these ultra long intakes I mentioned (L98, superram etc). Don't know if you've messed with those alot Bret but it's not uncommon to pull the cover and see fuel dripping out the runners on the superram. Camshaft specs have to be right on for those intakes to work right. Guess that's why Lingenfelter designed so many cams specifically for them.... most being short duration (very little overlap).
About how long are the runners now? So essentially you have more plenum volume and a shorter runner??
Let me reword this in saying that IMO the Vic Jr, Super, etc have about the right length runner for these 6500-7000 rpm lt1 builds. Not only does it have the length, it has some taper. So it's gonna tune like you're saying but it's also not going to want to revert like these ultra long intakes I mentioned (L98, superram etc). Don't know if you've messed with those alot Bret but it's not uncommon to pull the cover and see fuel dripping out the runners on the superram. Camshaft specs have to be right on for those intakes to work right. Guess that's why Lingenfelter designed so many cams specifically for them.... most being short duration (very little overlap).
About how long are the runners now? So essentially you have more plenum volume and a shorter runner??
Not telling runner specs, that's like cams specs boss ;-) The runners are longer and for the plenum well..... We filled it up with almost a 12 pack, but the problem is that we should have drank the beer first not after, didn't taste quite as good pooring it out of the plenum.
Originally posted by Mindgame
I have an Edelbrock 2975 and two Brodix intakes.... the HV1000 and a HV1003. I'm not sure which we'll use, nor are we opposed to going to a Super Vic. Most likely it'll come down to space under the hood (Harwood probably).
We have discussed using a 4bbl throttle body and a K&N 14x3 with the xtreme flow lid. Then seal the thing to the underside of the hood and pickup air from the cowl opening at the rear... ala old school.
That or run a shortened elbow and a LSx style throttle body.
I have an Edelbrock 2975 and two Brodix intakes.... the HV1000 and a HV1003. I'm not sure which we'll use, nor are we opposed to going to a Super Vic. Most likely it'll come down to space under the hood (Harwood probably).
We have discussed using a 4bbl throttle body and a K&N 14x3 with the xtreme flow lid. Then seal the thing to the underside of the hood and pickup air from the cowl opening at the rear... ala old school.
That or run a shortened elbow and a LSx style throttle body.
Originally posted by Mindgame
Either way, much of my curiosity with what you guys are doing is simple.... I might be giving you a call here sometime soon. No sense in treading new water when someone's already been there. I might be bringing you some business.
Either way, much of my curiosity with what you guys are doing is simple.... I might be giving you a call here sometime soon. No sense in treading new water when someone's already been there. I might be bringing you some business.
Originally posted by Mindgame
Yeah, I'd need to work this around the GM 487 or 481. I'm thinking it might be worthwhile. A bit greedy but worthwhile.
That -10X AP head is a real monster of a 23º head, no doubt! Is that a new WeldTech job? Never seen that one before...
Yeah, I'd need to work this around the GM 487 or 481. I'm thinking it might be worthwhile. A bit greedy but worthwhile.

That -10X AP head is a real monster of a 23º head, no doubt! Is that a new WeldTech job? Never seen that one before...
WTF castings are you talking about there? Hate to say I can't find them but I'm clueless. Not the 18deg 364,580 or 855 castings and not a SB2 or splayed valve, not even a Bowtie or Pontiac head..... got me
Originally posted by Mindgame
No, my next crazy stunt...... aluminum Dart talldeck (~450 ci) with 18º or canted valve heads. Shoehorn that into the 4th gen with the help of BMR and say goodbye to the LTx block all together. I have the block, just need to round up the other parts to make her fly. Turning 6500rpm with that one should prove interesting. Oh yeah, it'll be a street car too.
No, my next crazy stunt...... aluminum Dart talldeck (~450 ci) with 18º or canted valve heads. Shoehorn that into the 4th gen with the help of BMR and say goodbye to the LTx block all together. I have the block, just need to round up the other parts to make her fly. Turning 6500rpm with that one should prove interesting. Oh yeah, it'll be a street car too.

Still I would go with a Splayed Valve and a Wilson Intake if I was going crazy.
Bret
Originally posted by simple
ballpark price figures?
if all goes well do you have plans of mass producing?
ballpark pricing figures?
ballpark price figures?
if all goes well do you have plans of mass producing?
ballpark pricing figures?
Pricing is based on the work going into it and not just the market. If it was based on that I think the results would warrant a higher price than the competitiors
Mass production would work better if the company who made the casting the first time called me up and said here is $100K can we cast these puppies up? Hell yeah!
Mass production will be 2-4 a month at the most since it takes a while and I have to do other things in the shop.
Originally posted by simple
how are the intake runner openings gonna fit stock ported LT1 heads, as opposed to larger heads (LT4 and bigger AFR's etc.) or does that not matter much?
how are the intake runner openings gonna fit stock ported LT1 heads, as opposed to larger heads (LT4 and bigger AFR's etc.) or does that not matter much?
Originally posted by simple
will this be a direct bolt on intake (no quirks)?
will this be a direct bolt on intake (no quirks)?
Originally posted by simple
do you feel the stock throttle body will be a restriction mated to this intake? i see mentions of 58mm and monoblades is why i ask
do you feel the stock throttle body will be a restriction mated to this intake? i see mentions of 58mm and monoblades is why i ask
Originally posted by simple
why wasnt the stock casting used as a basis for the project?
why wasnt the stock casting used as a basis for the project?
Bret
Originally posted by dmoss69
Wouldn't LT1 intakes be the easiest to fab up since there is no water ports and jackets to take into concideration?
Wouldn't LT1 intakes be the easiest to fab up since there is no water ports and jackets to take into concideration?
Originally posted by dmoss69
Flat plate in the lifter valley roof, another flat plate across each head with a flange port matched to the heads, and then 8 runners up to a single plentum.
I made this sound way too easy!
Of course, you know I've never done anything like this before. I've just seen one my buddy made for his 383 dodge engine, so if I need to stick with my stocker, just let me know.
But if there is a way for me to fab one up, I'll try it.
Flat plate in the lifter valley roof, another flat plate across each head with a flange port matched to the heads, and then 8 runners up to a single plentum.
I made this sound way too easy!
Of course, you know I've never done anything like this before. I've just seen one my buddy made for his 383 dodge engine, so if I need to stick with my stocker, just let me know.But if there is a way for me to fab one up, I'll try it.
If it was a casting that was then CNC'ed we would be looking at $500 at the most. If I was going to do a full sheetmetal then I would do a vallley cover, intake flanges and plenum out of Al plate and have the runners CNC machined out of Al blocks to get the right runner size, shape, tapper etc.... Seen some nice 4.6 Ford Wilsons like this, problem is they cost $4500-$5000 for those intakes! So you sure you still think this is a cut and weld deal? It's not just the fact that you can cut and weld Al it's knowing what to make.
Bret
Last edited by SStrokerAce; Jun 9, 2004 at 11:43 PM.
Originally posted by Mindgame
They're stating ~$1800 in the last post there.
I'm not going to knock anything til I see some numbers but I guess it's still free to speculate. No doubt some will be offended.....
They're stating ~$1800 in the last post there.
I'm not going to knock anything til I see some numbers but I guess it's still free to speculate. No doubt some will be offended.....
Originally posted by Mindgame
Doesn't look like they're going to get too much runner with that intake, even if they extend them up into the plenum. The stock LTx is what... just short of 3", so hey I'm curious how much runner length we're adding there?
And runner taper? Just an extension of the original runner or a different port entirely?
Doesn't look like they're going to get too much runner with that intake, even if they extend them up into the plenum. The stock LTx is what... just short of 3", so hey I'm curious how much runner length we're adding there?
And runner taper? Just an extension of the original runner or a different port entirely?
When you use that intake you can't do too much to it and the casting sucks as far as the port itself goes. The only thing good is the injector placement and angles on the LT1/4 intake and it looks like that gets changed big time there.
Originally posted by Mindgame
I'm still putting my money towards the single plane carb intake and that's not to take anything away from the guys at RacePrep. Just my thinking as it stands.... and that's always subject to change.
I'm still putting my money towards the single plane carb intake and that's not to take anything away from the guys at RacePrep. Just my thinking as it stands.... and that's always subject to change.
Bret
Originally posted by 96z
I have been talking to Bret about this quite a bit over the last couple weeks. All I can say is that the design is extremely simple, not at all in the work the Bret does or how the intake performs but how easy it will be for someone to just drop this in and have fantastic results. With there currently being nil in the way for after market intakes for our motors this IMO sets the standard. With converted single planes you have to worry about elbows, cutting the hood/aftermarket hoods, different throttle bodies etc. In the long run alot of customization can come into play.
Race Prep's intake looks nice but the whole idea is to get away from the LTx casting. All the area's the LTx intake design lacks Bret improves as he already commented on.
I think there will be a waiting list soon if one hasn't started already.
I have been talking to Bret about this quite a bit over the last couple weeks. All I can say is that the design is extremely simple, not at all in the work the Bret does or how the intake performs but how easy it will be for someone to just drop this in and have fantastic results. With there currently being nil in the way for after market intakes for our motors this IMO sets the standard. With converted single planes you have to worry about elbows, cutting the hood/aftermarket hoods, different throttle bodies etc. In the long run alot of customization can come into play.
Race Prep's intake looks nice but the whole idea is to get away from the LTx casting. All the area's the LTx intake design lacks Bret improves as he already commented on.
I think there will be a waiting list soon if one hasn't started already.

Bret
Originally posted by dmoss69
Welding wire and plated aluminum doesn't cost that much either.
Welding wire and plated aluminum doesn't cost that much either.
Doesn't cost that much true, but then again the guy doing the work needs to get paid. I don't know about you but my e-mail address doesn't say bret@salvationarmy.com.
Think about that, I don't know about you but I feel that what I do day in and day out is worth what I get paid and the power numbers represent that.
Bret


