I agree bgiger gears would help the LT1 intake, at TPIS they tell you a miniram needs them too, whicc is what I will be doing.

 

It all depends on the combination. I could build an engine for a LT1 intake and slap a SuperRam on it and show a loss in both TQ and HP.
Right now you're not looking at a matched setup, just an intake comparasion.

What we need now is someone to show a comparasion of a stock TPI and a Superram intake. :boxing

I doubt anyone would pull off a $1000 SR and put a modded LT1 intake on their engine today. They have a SR because they are setup for it.

The LT1 intake is just a cost effective way to get the same performance as a SR and save money for other mods like a cam, convertor and gears.

 

Well said, John. After reading this I am swayed even more in the direction of the LT1 conversion. Super Ram $1200, LT1 conversion $600 (at the most) = $600 difference. That $600 will buy the Hooker 2149s! :cheers:

 

Just to give you all first hand opinion, I have a LT1 retro fitted intake on my formula, although not done by John the previous owner (RCR) got the idea and lots of info from John if I am not mistaken, and I can say it does not lack in low end as far as I can tell. I can roast em at will but I do have a 2800 stall.

I bought a tpi for my vette but will probably go with an LT1 intake from John if I don't put a HSR on the formula and swap the LT1 onto the vette.


[Modified by Fevre, 8:24 PM 6/23/2003]

 

awesome info. I think with equal 60' times the LT1 conversion would be quicker in the 1/4 mile.

 

But that's the trick, isn't it? Equal 60' times does not mean equal 'everything else.'

 

ralph i talked to a very knowlegable head porter who also had his hand on the developement on the stealth ram i asked him about all three manifolds stealth ram,mini ram and super ram and he said the best manifold hands down is the lt1 or the lt4 manifold he said the mini ram is preety bad and the stealth ram is not all that great and the super ram can not flow enough air he said the best maifold hands down is the stock lt1 manifold this is no joke either i was shocked also so that lt1 conversion might find its way on my setup in the near future :cheers:

 

The MiniRam came out before the LT1 and the LT4 intake....my understanding is that GM saw the MiniRam and copied it!


:chevy

 

Corky, that is interesting. No question, the SR cannot flow enough in the upper rpm range and your current combo is probably limited as a result. I read about the distribution issues of the miniram, and there is no question that the LT1 intake can flow like a mother. However, it's been my experience that for a moderate setup such as mine, the extremes on intakes don't seem to translate into quarter mile performance. In otherwords, guys with LT1's and similar mods to mine, run about the same as i do with a SR. Same 60s, same mph (assuming roughly the same weight car too). However, if you wanna kick it up a notch with more cubes or curve extention, the SR aint gonna cut it. The LT1 style intakes have much more potential in that area, but you gotta setup everything to operate up there as well.

I'm a little surprised at the comments on the stealth ram. Was he strictly refering to flow capabilities or all around performance? Based strictly on flow capabilities, the SR is a dog, but in terms of real performance, there's lots of strong examples including your own. Like i said, i haven't seen enough real world results on the stealth ram, but it seems like it would make nice compromise between low end torque and high end power. The runners look to be about 6in which is around the same length as a long single plane.

btw, did you get your rear back together? If you're serious about the LT1 intake, you might wanna consider more gear.





[Modified by ralph, 9:09 AM 6/24/2003]

 

Does the StealthRam even fit under the hood of a Corvette? I know the LT1 intake will no problem. :)

 

quote:
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and he said the best manifold hands down is the lt1 or the lt4 manifold he said the mini ram is preety bad
--------------------------------------------------------------------------------

Corky, what was this guy's reasoning behind this statement? I'm not doubting him or calling him into question, I'm just curious as it seems like the Stealth Ram is a pretty stout piece. :seeya

 

power for the buck question? adding all you have to do to make all three setups work, isn't the LT1 the cheapest route? with the MR or SR dont you have to mod the hood for clearance? wouldn't that be included in the price for this modification?
is there a way we can just pool some cash together get all three setups and test it?

 

No, the Miniram and Superram both fit w/o any clearance issues at all. The orignal Stealthram did not fit under a C4 hood, but there are now a couple of custom Stealthram plenums that DO fit under a C4 hood.

 

I swapped out the stock intake for a superram 'cause I wanted aproject and the intake came well before the long block.

From a purely subjective butt-dyno standpoint, I didn't feel ANY difference in the _magnitude_ of pull. What I found was that it pulled much further than the stock intake. Where stock was all done around 4800 rpm, I held the tranny back and it pulled strong to almost 6000rpm. In effect, it didn't make MORE power, it made the same power for a long period of time (more area under the curve)

Further, if I let the tranny shift itself, it would do so no higher than 5200rpm. If you were to drop $1200 and change nothing BUT the intake, you'd also want to change the shift points on the tranny. NOT a good bang for buck first mod. :P

Now, mate it with a 383, more fuel, headers, heads and programming, and it'll twist apart your 700r4 in VERY short order.

I've got a dyno sheet that's a good 100 hp down from what the motor was supposed to be making. Turns out it was losing all that power to heat while consuming the tranny. (New tranny should be in in the next 2-4 weeks, Woot!) Now, it was down on HP, but it WASN'T down on torque, makeing a good 380 RWTQ.

 

he was saying as an all out performance standpoint i was refering to my car and i was talking about bigger heads and so on and he said from his testing and he tested all 4 manifold combos he said the lt1 intake was the best intake to use in my current combo and or larger motor too he said the ports on the stealth ram were not all that great he even had one there and was showing me believe me i was getting ready to hop on the stealth ram band wagon i do allready have the hood for it but he just blew that out of the water with his discussion on the manifolds :cheers:

 

The LT4 intake will provide taller intake ports to better match a larger head. How large can the LT1 intake port be taken, 1205 right?

 

I should have some track times for mine next month.