Hey there, has anyone out there with a TPI setup, preferably Camaro done this mod? I am highly interested in it, especially getting the bonus RPM range out of the LT1 intake.

Also the biggest thing for me is has anyone done it with a blower? From what I can tell it sits lower and further forward, so a new intake elbow would have to be made.

What kind of RPM range does the LT1 intake actually have?

Thanks guy's

Here's the link to the site.<br>
<a href="http://www.lt1intake.com/swapping.htm">http://www.lt1intake.com/swapping.htm</a>

 

https://www.thirdgen.org/techbb2/sea...der=descending

 

Holy crap maybe I should try searching first next time Thanks

 

lol... ya alot of info...

You might want to look into a Holly Stealth Ram also

 

Aye I have been looking at the MiniRam, and stealth ram. From what I read through those posts I think I might stay away from the LT1 intake. I'm still not finding info on RPM range for these other setups though. That was my biggest question. If I'm only going to get 500 more RPM it's not worth it to me.

 

For the most part, the LT1 is a non tuned setup... it doesn't effect your power band at all like other intakes do. It's happy to work with whatever you build up the rest of the engine for resulting in a very flat torque curve.

For the most part it's a decent design. It's biggest failing is the lack of any significant taper to the runners to allow for some ram tuning (it was sacrificed for better injector location), but I don't think that you'll see a significant power difference messing with this unless you're talking about something like a 9 second car…

 

So my best best would just to get ported runners, open my plenum, and get an aftermarket tpi intake then?

 

no.

hes saying that if you want to build the motor with low end grunt, it will work

AND

if you want to build it for high RPM power it will work.

its not "tuned" for any specific range, and works great just about everywhere...


the other long runner setups (TPI, superram, ect) do help out with low end TQ, however they choke the motor up top...




anyway, to answer your orignal question, yes, someone on here has a LT1 intake with a blower that has the stock vortech cast 90* throttlebody bend... it looks like they used diffrent couplers though.. probly to allow some offset. if it was a big deal, you could always angle cut it at the TB and make it work..
theres also someone on here with a 100% custom setup and a LT1 intake... you would have to search though, i dont have the pics on my PC.

 

Good luck fabing the intake peice for your s-trim.

You might wanna just stick with what you got. I spent a few months looking into lt1, miniram, stealthram. I came to the conclusion that the money, time to bolt it, then adapt my blower would prolly net me a tenth in the 1/4 (if anything at all).

I have no doubt on my mind that on a n/a motor, all of the above are better than tpi! (though GM performance parts lists an LT4 as "good for up to 450hp" - which leads me to believe the LT1 isnt as GREAT as ya'll think.)

-- Joe

 

MrDude_1, you were doing well as long as you were doing Mark to English translation, but after that…

TPI does nothing for the engine below about 3000rpm, and there is no real tuning effect that you're going to feel below the high 3K range. Until that point TPI not only hurts output (every harmonic peak has a corresponding valley on either side) but it's long runners hurt responsiveness. The only thing that saves it is a too small plenum that gives just the opposite effect and a crappy port entry which makes the stock heads which are low flowing pieces of junk work like the intake ports are about 2/3 the size that they actually are increasing velocity. Assuming everything else being equal the LT1 intake will actually make more torque to about 2800rpm and more power above 4000rpm resulting in a much flatter, more useable power curve. If you put good heads on the engine the TPI would try to build another tuning peak around 5K or so but at that point the LT1's bigger plenum and some semblance of ram tuning (LT1 isn't tapered enough to make this work well, TPI is tapered the wrong way, if anything) would probably win out.

Personally, under boost I feel harmonic tuning is an annoyance and just makes dialing in an engine tune and controlling detonation more difficult.

As far as TB elbows, either cut a TPI one or use a 4th gen f-body one which will be larger anyway. 4th gens have slightly less distance from the radiator support to the front of the engine then 3rd gens…

 

hrm lots of good points. As I stated in my orig post my main concern was trying to get more rpm, but now I'm really not sure if it's worth it after reading all the articles like anesthes said. I have a friend who's got a plenum, edlebrock intake and alum heads all port matched to each other, I might just go ahead and buy that from him and call it good.

I finally got my chip for my car, so I'll see how things end up with it first, then go from there.

Thanks for the opinions and info guy's.