I agree. The 102 is better than the 92, as the 92 was better than the 90. The 90 and 78 are the same manifold with obviously a bigger top shell. The 78 didnt sell because everyone believed that it wouldnt gain over the LS6. I would be thrilled to have a 90 or 92 dont get me wrong, but if I had a choice, 102 all the way

 

Just like now, everyone seems to think the 102 is "too big" for stock cube engines, which is why the price for used 90's and 92's are approaching brand new 102's.

Someday, people will wake up and the price on the 90's and such will drop like a rock. Esp when more used 102's start hitting the board.

 

IMO a lot of the reason people like the 90/92 so much is that it doesnt require fuel rails. I encourage people I install intakes on thier cars to buy used LS2/LS3 fuel rails. Then pick up the spacers, instead of "hoping" for a used and possibly cracked intake manifold that has been on 3-4 cars and some random guy taking a dremel to it and calling it "ported"........ Then still paying almost what they can buy a new 102mm manifold for.

You have to also remember on this board everyone is focused on a car that is 10-14yrs old, hasent been produced since 2002, and is on its 3-4 owner as well. The intake goes beyond F-bodies, believe it or not there are other LS cars........ People with cars from 2005+ do not have to buy rails and it bolts right on. Everyone here is only focused on thier specific vehicle, making the older 90/92s worth more lately.

 

Great point. This is not F body tech. I dont think the fuel rail is the issue with the rising costs of 90/92s though. I still believe 100% it has to do with people having no understanding of how a manifold works. People see 102mm and get scared and say its too big even though the testing has been done on just about every setup

 

Bingo and bingo...I remember when the 102 came out and the 92 was discontinued, the outrageous amounts of people flipping out about not being able to purchase the 92 anymore and fast only making a manifold that works on larger engines. I was amazed...

Too many people still stuck on carbuerator math...

 

I also agree with both of you, I think I have been the most outspoken one about helping people learn how an intake manifold works. I know Ive tried to explain it a million times...... and its catching on. But I was just adding the point about the F-bodies because I feel its another valid point on this forums problem with tunnel vision.

 

In their defense, it is called "ls1tech" in my opinion, it should be changed to lsxtech.

 

My GTO has an LS1 in it, so point is invalid. I have no cowl to deal with so my only real limit is a hood

 

I read this and made up my own mind
https://ls1tech.com/forums/generatio...vs-fast92.html

Would a FAST 102 work for me? Yes. Would I get the full benefits from it right now? No. Do I ever plan on having the mods that would make total use of it? Probably not. I currently have an LS1 intake/stock TB. My choice is the BBK.

 

HAHAHAHAHAHA a 102 has more potential... its not the best choice for everyone... my computer froze as i type up a page on your comment the big mouth 102 if for definately yelling i have deep pockets... inferior product with a 90/90 fast... its the most VERSITLE combo... ls1/ls6 78mm ls2/ls3/ls7 90mm hmmm different bores, stroke, valve sizes, combustion chamber sized, different intake port design... hmmm... i see afr only makes the cathedral head... why... it makes the same or better power than the ls3... as for an aftermarket ls7 head... factory they are cnc ed... and nearly at 400cm with a ported out stocker, i dont see too many aftermarket companies out there who are going to do that much r and d to make a head flow a few more cfm and be profitable... with the price not to mention the bore size required for an ls7 head min 4.10... so lsx and ls7 block have dibs, or you can pay a premium for resleeving
truth is every build is a unique combination of parts and has different needs. the TRUTH is the bigger the restriction, the more dramatic the change... you sir must have more money than brains...

im going to go swap a precision 116mm turbo on my stock 1.4L cruze and rape my ctsv since it can make 2500 hp. my V makes 450at the tire so the cruze should beat it... its lighter and has boost... if my V wins its because the the turbo was clogged up with the children down the street. its bigger so it MUST make more power.

putting a 102 on 4.8L makes about as much since as putting an infant in size 50... just incase later on in life they will become obese it wont need more clothes. of course i wouldnt stick an 4.8L truck intake manifold on a tall block punched out 502 LSX motor either... sizing...

maximize your port velocity and get the biggest volume with it and you will have a killer car every time...

 

I hope you were drunk when you typed that...cause none of it makes any sense.

 

Your last sentence makes the most sense...and is true.

Fast 102 all day.

 

You sir fail at life

 

He is just ignorant on the subject. He needs to understand/research the truth before blurting out total falsehoods. No one is listening to him anyways when everyone comes in behind him with truth.

 

I couldn't find a falsehood is that fail of a post....probably because I couldn't even find a complete sentence...

 

I think that the main reason that so many people choose the smaller FASTs are simply because of all the accessories needed to install the 102. At least with the 78/90/92 you can use the stock fuel rails, dont need to worry about new motormounts and with the 90 and 92 you can use a LS2 throttle body.

 

You don't need motor mounts with a 102, and you only need fuel rails to make it work. Ls2 rails will work and can be had for cheap.

 

Sorry don`t mean to hijack but i`ve been trying to find some info on modding an LS6 Intake for the EGR hook up all i can find is how to block the egr off on intakes that have been modified by SLP , I know it will have to be drilled and a brass fitting but other than that has anyone have any experience with doing this ? BTW I`m trying to keep the car smog legal .

Thanks .

 

Dont know about modding an ls6, but i know a nice intake thats legal even in California......

 

And it works on every ls engine from stock to built to the hills...