Yep you will not be disapointed as I fitted a Fast 92/92 on my ute and gained 13rwkw (17rwhp) and .208 & 4mph over the 1/4mile over ls6 & 78mm throttle body. This is with the new black Fast 92mm intake / throttle body match ported to my ported and shaved heads and 232/238 @112 cam.

 

I'm not pulling vacuum on my 102/102. The 102 does have a lot more that needs to go with it though. Water pump (for clearance), specific fuel rails, and not to mention Re-doing the intake ducting and a new Lid. And the 102 swaps don't like to run afterwords either, so add in a tow if you're doing it yourself. The drivability is fine, depending on the tune. I pulled quite a bit of timing from the idle and off idle region to keep the part throttle drivability tame. But up top, the throttle response is instant.

But overall, the 102/102 swap would be for a max effort build and it's pretty much future proof. if you're not looking for Max effort or future proof, I'd still say the 92 is still a very nice piece.

 

Bayer I read through your long official thread and saw all the info Mamo posted. I think I'm doing the FAST 92 port matched to my TFS heads he is working for me. I can live with 5hp on the table.

 

^ Yeah, 5hp is negligible.

 

This thread has me very interested, as i'm strongly considering a FAST intake right now. So the 102 needs more stuff to go with it, whereas the 92 does not...I would just need the intake alone, and that's all? How much more are all the other necessary bells and whistles that would have to go with the 102 vs the 92 alone...what is the total dollar difference? Also, I hear you all taking about "port matching" with the 92...so does it come that way, or do you have to pay extra for that? If so how much is that as well? I'm new to the whole LS scene if you can't tell lol

Thanks

 

LS2 fuel line kit, new LS2 waterpump (or grind stock), new bellow. So 250 at a minimum for lines and new intake bellow, and possibly another 100 for the ls2 wp. Some go with larger MAF as well (another 250) but I'm not sure it's worth anything. Lots of 500+ motors on stock MAF...

 

90+% of the time they will be within 5-7hp and tq of each other.

 

Apples to apples, on the same engine, even stock cube, the 102 intake will always outperform the 92. By how much is a toss up.

 

Oh wow...so anywhere from $250-$500 more in just parts alone. If the 102 is only like 5 more hp than the 92 (peak, across the board, etc...) then it may not be worth it IMO. I have to consider the possibility of factoring in labor as well, since i'm not super tech savy and work like 60-70 hrs a week lol. Thanks for the info guys!

 

Yeah HCI... that's the question. I don't think anyone is arguing the 102 will not make more power, but it's a question of how much more?

The FAST LSX is already a pretty expensive upgrade for the power you get (coming from an LS6 intake at least). In the end, that's what may sway me to go with the 92. I'll be doing it myself and the headache for 5hp isn't really worth it. Plus, if you don't have a knowledgeable tuner around it could be even more of a headache with a 102/102 combo.

 

You can get GM MAF's on E-bay for $40-$50, plus another $20 or so for the harness adapter. And intake hoses sells a 4" x 4" 22* bellow for $27 that fits really nice with a little trimming.

Water pump is probably the biggest hassle. I have seen at least one member on here grind too much on the ls1 pump and go through.

 

Most of us could stand to replace the waterpump if we're over 100k miles anyway on a 10+ year old engine.

It's just everything with a FAST 102 nickle and dimes us to death. In pursuit of a particular number, that might be worth it, but most mods we can chalk up to very little ROI.

 

People will argue this point to death! The FAST 102 is a newer design and will make more power any day of the week. There are threads showing a side by side comparison. Costing more? Well depends on the buyer...

Like mentioned before, you may need a new WP anyways, or maybe you decided to upgrade the fuel rails etc...

Simple fact the FAST 92 is an ideal bolt on product but not superior or equal in performance, the FAST 102 needs at a minimum a fuel rail. Its a different choice for everyone.

 

FAST ought to make the 92 less expensive.

I don't know of any other market where a company sells two products with varying "performance" and they price them the same. Maybe it's because FAST is in the unique position of having the only two products on the market in the segment. It's not like they need to recoup R&D costs on the 92 - that's been out as the 90/92 since 2005. Maybe they don't manufacture as many because 06 GTOs and 04 Vettes are the newest cars that could use it...

But say 740 the 92 and 840 for the 102 is at least some market segmentation and would help people choose the level of pay to play.

 

They can price them the same because of false information and not all cars can not fit the 102
They have a monopoly, can honestly charge whatever they want and you cathedral guys will suck it up!

Rectangular heads or a single plane!

 

I bought a new back in black 92. It went on a H/C car. Honestly, I didn't feel any SOTP difference. That hurts a tad for what these things go for. Do I think the 102 would have done any better? Nope. LS6 intake just really isn't that much of a hinderance on a stock cubed engine. But one day when I have a 408 or bigger, I'll be set.

 

im also debating getting the 102mm intake. I was gonna get a 92mm intake and get the FAST high flow fuel rails, and 42lb injectors, since im already getting that stuff is it worth it for me to just get the FAST 102mm intake? Car will have EPS 236/248 cam and TEA/TFS 215cc heads.

 

Great info here! Okay I have a question...will a ported 92 flow as good as a stock 102, and if so how much does it cost to port one?

 

Depends on who ports it...Could cost you more than than the fuel rails people are crying about.

Here is the side by side. Depends on who you are, you could say its only xxx hp...Same could be said about justifying a port job

https://ls1tech.com/forums/generatio...ts-inside.html


They stopped making the FAST 92 for a reason (the 102 is a better design)! Of course the stigma of the 102 brought it back...They cost as much as they do because they know people will pay it. $800 is a discount compared to what people were selling them used.

 

On your engine, there won't be much difference at all between a Fast 92 or 102.