It's funny because I hear all this talk about the FIRST intake being able to do this, and that.

But I still havent seen any real world dyno numbers, or track times from any members of the Corvette Forum. If it was such a g r e a t intake then why arent there hundreds of guys running it on the C4 Corvette's or F-body's for that matter.

Anyone?

 

That's the point most people will miss. When you're considering a complete stroker build, maybe this isn't the intake for you. If I started with the LTx platform, I probably wouldn't consider it either.

But, when you're looking for bolt-ons (or to build a 6k-rpm street motor), this is a serious option. Consider all the threads raising controversy over an LTx header swap. I've seen plenty of threads saying 8-10HP is what you're going to get with by dropping your $800 or more. How many say forget that?

If the same purchase gets 30ft/lbs of torque, how many would be in? What if I also said HP would not be lower until you pass 5500rpms?

BADSS posted plenty of feedback, HP and track times for this intake around 3yrs ago. He directly compared it to a ported SLP/TPI and an HSR. I believe it was also compared to a MR in a rag. Cuisinartvette started the thread. LTx owners paid no attention because it wasn't available for their cars. L98 owners figured the SR was a better option -- probably because Lingenfelter's name was associated with it. But there's also a member here who swapped from a SR to a FIRST. (And, it was on a 383.) I can't think of his ID right now, but the evidence is here if you quit sticking your head in the sand.

 

There are plenty here, most are too cheap to see that $800 or whatever is a steal for a good afternmarket intake/TB setup. ("OH god, I paid 1000 for the whole car thats too much for an intake. My investment! LOL)

You dont have to see dyno #s only some general info to see that it would outperform the stock intake on most applications.

there have only been a zillioin threads on this stuff easy to come to a sound judgement, not like the LT1 and TPI are new kids on the block.

 

Come on Ronny. Let's see some proof. Its kinda like the bad guy that I arrest. He always has excuses and claims that he didnt do it, but I never see any concrete evidence.

I have seen very little information on this forum since I joined many years ago. I have seens tons of info on the miniram, tons of info on the superram, and bits and pieces on the holley stealth ram which was more on the third gen sites. But I dont recall any real world information on the FIRST intake. $800-$1000 is still alot of money to fork over to buy and intake that is "supposively" a good performing intake.

The jury is still out on it, and I am my own little judge. I personally dont have enough evidence to make a judgement.

Only on the CF can you be a police officer, and a judge. I only wish!!!

 

"and can easily be ported beyond 1.75""

Yes it can, and with work more than that. IMHO it can be opened up to support 600+hp. Out of the box the intake manifold ports narrow down to fit the old L98 iron heads. A little grinding will dramatically increase the CFM.

 

Dyno sheets arent everything, how many dyno queens get blasted on the track by a milder well thought out combo?

IMO dynos are great for tuning and a general reference point other than that they mean beans to me.

You must have thousands of dyno charts Im sure you can see where picking up the torque curve of the LTx with a simple intake swap is worth it. $800 is chump change for a intake that flows well AND a TB.
Shoot a good 4 bbl intake is 4-500 easy,good carbs are 600+.

How much was the miniram fuel rails etc? Not cheap.

The LT1 intake makes more power than the stock tpi but its by no means a race intake without work for sure.

Id like to see someone who has taken their stock/mild LT1 down the track stick one of these on and run it. Bet you it will go faster ET wise with the FIRST. Yes its long tube but look what how much more air it can move. More radical build up who knows.

 

track times will do then.....

 

Alrighty....Not the sharpest knife in the drawer here by any means, but my LT4 makes 340lb ft of torque (lots) and revs strong to 6k+. Why would you want to choke it down with an intake that does not take advantage of the cam and valvetrain in the car? If low end is an issue, it would seem cheaper, more effective, (and require almost no tuning) to drop in some gears. Doesn't make a lot of sense to me unless you have an LT? that you want to use in a truck or something. That thing would require a custom tune and I would think a different cam to take full advantage of its strong points. Just seems like a great solution to a non-existent problem.

 

 

There's no point in linking you to the thread I spoke of. You know...the one with track and dyno numbers. Your mind is made up and your motor is built. Your testimony is irrelevent. Call the next witness.

Keeping driving your LT4. It's worth more in stock form.

Why do people who have no interest/desire ignore information, skip posts, and ask silly questions. Check the flow potential just posted by 1989TransAm and check the power range of your stock cams. Better yet, check the redline in your user manuals.

 

I dont have an LT-4, and I look at all the evidence before me. It's obvious its not for 421 cubes.

 

I see 6300 posted with the stock LT4 cam there is no reason to run it up that high, its atiny cam and isnt doing much more than creating heat at that rpm.

FIRST intake flows like a S.O.B in comparison why would anyone think its goign to choke their motor?

On that note why choose an intake that flows less?

No positive outlook on a new product that comes out for the C4 -as usual
All negative crap, no wonder mfrs skip them over.
Yet everyone still bitches..thats the reason noone wants to make blocks.

As said on a larger cubic inch LTx with a stout cam there may be better choices but most cars here are run on the street and none of them will be 421 LT1s. Sheesh

Not the sharpest knife in the drawer here by any means, but my LT4 makes 340lb ft of torque (lots) and revs strong to 6k+
And another intake couldnt do better?

 

Yeah, I don't plan on modifying the LT4 much at all. My next Vette I would like to be an automatic LT1 or L98 (MAYBE a cherry crossfire for the right money). I'm just not feeling the intake is all. Don't think the bang for the buck is there. I think in LT engines that CAN rev pretty well, gears are the best investment, and they turn pretty decent torque numbers right out of the box. I am not downing anybody or anything, I am sure there is a performance benefit, I just don't believe with the top end potential built into the top gears in these cars (for fuel economy purposes) that you can't go wrong just swapping in some 3.73s (for TPI cars) or 4.10s (for LT series cars) to get the most for your dollar.

 

-The LT4 makes peak power VERY close to redline, so I think it is making more than heat.
-The LT series cams, heads, etc were not designed to function with long tube runners. -
-They were designed to rev (LT4 in particular) with the roller rockers, big injectors, etc.
-The LT4 hotcam has been proven to wake up the LT series in grand style..
Once again, I am not debating that it makes more power (although I feel it will limit top end potential). I am merely stating that you will get more for your money with a gear swap.
Also..I realize people will always want more, but most LT series Vettes are in the 13s out of the box. Pretty good performance if you ask this guy.

 

330hp at 5800...

 

I guess furthermore now that I think about it another minute....with that FIRST intake, will the car pass emissions? Gears do not cause emissions failures. I am not saying the intake will cause a failure, but it is a concern in some states (like Virginia).

 

Rick, I know you aren't building an LT car. But I also know the FIRST has an intake config designed to fit a SBC or BBC. It's obvious you don't know about the FIRST.

Talk about being the judge/jury! Looking at "all the evidence before me"? I bet you want someone to bring it to you too.

Again, you're not interested, so why post? Are you concerned someone else might try it, have good results and make you regret something? I already know the answer. If it's not a large-cube build with a miniram, you like to be the first negative poster.

 

Then, you probably don't need to look at cams or performance parts. Sounds like you're happy.

BTW, Nothing says you HAVE to put a certain cam in your LT motor.

 

id bet chances are FIRST has already tested this out, maybe someone should clue them in on the thread and see what they have to say.

 

True enough, I am pretty satisfied with my ride (LT4, Corsa, K&N, 4.10s). I may be interested in a hot cam one day, but I am pretty good with where I am at with this car. As I said, my next vette may be an LT1 auto...neither here nor there. I just have an opinion on this intake, the price (1,000 bare), and the price/benefit analysis. It's a discussion forum, so I was discussing =)