Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

fast intake advice

Thread Tools
 
Search this Thread
 
Old May 16, 2014 | 09:03 AM
  #1  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default fast intake advice

After much debate, I think IM going to try and pick up a fast intake. I have debated back and forth from every intake option out there, I was originally going to reuse my lq4 truck intake. Here is my setup. 370, prc stage 1 ls6 heads, 228r cam.
I am going to try and find a used fast and throttle body. I see that there are many different sizes of fast Intakes on the used market 78/90/92/102,
what size would be best for my set up?
Reply
Old May 16, 2014 | 09:16 AM
  #2  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Also, what is a fair price to pay for a used fast
Reply
Old May 16, 2014 | 09:30 AM
  #3  
Exeodus's Avatar
TECH Apprentice
15 Year Member
Liked
Loved
iTrader: (1)
 
Joined: May 2008
Posts: 330
Likes: 10
Default

Go for the 92 or 102. The 102 will require different injectors and fuel rails if you are using stock parts. The 92 can use stock rails and injectors with an adapter kit. Both will easily support your setup, the 102 is worth a few HP more.
Reply
Old May 16, 2014 | 09:38 AM
  #4  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Originally Posted by Exeodus
Go for the 92 or 102. The 102 will require different injectors and fuel rails if you are using stock parts. The 92 can use stock rails and injectors with an adapter kit. Both will easily support your setup, the 102 is worth a few HP more.
I currently have the 8.1 marine injectors, so I'll sell them and buy whatever I need for the fast
Reply
Old May 16, 2014 | 11:28 AM
  #5  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

These intakes will make about 10-15 hp over a LS6 intake just so you know
Reply
Old May 16, 2014 | 11:44 AM
  #6  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Originally Posted by HCI2000SS
These intakes will make about 10-15 hp over a LS6 intake just so you know
IM not disagreeing with you, but
I was thinking I would make a little more power than that being that I think IM pushing the limits of my truck intake, or an ls6 intake if I had one
Reply
Old May 16, 2014 | 12:00 PM
  #7  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Should intake manifold questions go in the external forum? Or am i ok asking them here?
Reply
Old May 16, 2014 | 12:33 PM
  #8  
Rise of the Phoenix's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Dec 2009
Posts: 9,728
Likes: 13
From: Jefferson City, MO
Default

Originally Posted by mikesimpalass
Should intake manifold questions go in the external forum? Or am i ok asking them here?
External for future reference, but the mods can move it if they feel the need to.

And I feel that a FAST intake will get you between 15 and 20 more rwhp.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 16, 2014 | 01:11 PM
  #9  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Originally Posted by Rise of the Phoenix
External for future reference, but the mods can move it if they feel the need to.

And I feel that a FAST intake will get you between 15 and 20 more rwhp.
thats a lot of money for 20 horses. Ideally, i would like to run a performer rpm manifold with a 4150 tb, but that manifold isnt available with injector bosses, and i dont think the victor jr is the right intake for my engine or its intended use.
Reply
Old May 16, 2014 | 01:29 PM
  #10  
BrntWS6's Avatar
TECH Addict
iTrader: (7)
 
Joined: Feb 2005
Posts: 2,004
Likes: 10
From: Land of the FOID
Default

You do not need an adapter kit to install stock injectors on a FAST 92, you need them for the 102.

I'd say between 15-20rwhp on a 92 and 20-25rwhp on a 102. But to make the most of it you need a 90mm MAF(or SD tune), bellows and FTP lid. I personally would also port and port match it to my heads. Gains are also not just peak, you should see that whole bump from ~4k rpms all the way to redline. It is very expensive though, especially when you have to consider a tune is a must.
Reply
Old May 16, 2014 | 01:33 PM
  #11  
Rise of the Phoenix's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Dec 2009
Posts: 9,728
Likes: 13
From: Jefferson City, MO
Default

Originally Posted by mikesimpalass
thats a lot of money for 20 horses. Ideally, i would like to run a performer rpm manifold with a 4150 tb, but that manifold isnt available with injector bosses, and i dont think the victor jr is the right intake for my engine or its intended use.
Yeah, it's a bit pricey when you put it in terms of money per HP/TQ. A single plane intake is a great idea, and I thought about doing that myself, but with having to cut up the cowl and lose the wipers, I decided against it. If you did a Super Victor intake with a 4150 TB, that would be a killer intake/TB combo, but in order to maximize that intake/TB combo, you really need a cam that has been spec'd for the single plane intake. If you do go that route and get a cam that has the valve events for that particular intake/TB setup, it will make killer power throughout the RPM range. Too many times people will run those intake/TB setups, but neglect to get a cam that is tailored for it. If you don't mind hacking up the cowl and losing the wipers, then I'd say go for it. You would likely have to modify the hood, or get a different hood altogether too.
Reply
Old May 16, 2014 | 01:57 PM
  #12  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Originally Posted by Rise of the Phoenix
Yeah, it's a bit pricey when you put it in terms of money per HP/TQ. A single plane intake is a great idea, and I thought about doing that myself, but with having to cut up the cowl and lose the wipers, I decided against it. If you did a Super Victor intake with a 4150 TB, that would be a killer intake/TB combo, but in order to maximize that intake/TB combo, you really need a cam that has been spec'd for the single plane intake. If you do go that route and get a cam that has the valve events for that particular intake/TB setup, it will make killer power throughout the RPM range. Too many times people will run those intake/TB setups, but neglect to get a cam that is tailored for it. If you don't mind hacking up the cowl and losing the wipers, then I'd say go for it. You would likely have to modify the hood, or get a different hood altogether too.
The engine is in a 86 Monte Carlo ss, so I wouldn't have to cut the cowl or wipers, but I would have to measure for hood clearence, but I don't want to go back and buy a different cam. my 228r is cut on a 112 too, and I really don't intend to spin the motor past 6300. That's why I was leaning towards the dual plane performer rpm. But that's not really an option because it doesn't have fi bungs.
Reply
Old May 16, 2014 | 02:01 PM
  #13  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

Originally Posted by BrntWS6
You do not need an adapter kit to install stock injectors on a FAST 92, you need them for the 102.

I'd say between 15-20rwhp on a 92 and 20-25rwhp on a 102. But to make the most of it you need a 90mm MAF(or SD tune), bellows and FTP lid. I personally would also port and port match it to my heads. Gains are also not just peak, you should see that whole bump from ~4k rpms all the way to redline. It is very expensive though, especially when you have to consider a tune is a must.
That's why IM considering the fast or another intake now, I haven't got the car done yet and it hasn't had it's first tune
Reply
Old May 16, 2014 | 02:05 PM
  #14  
JakeFusion's Avatar
Super Hulk Smash
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Default

I'll move to External.

But yes, a ported FAST 92 is good for about 20rwhp over a stock LS6. Across the RPM range. Unported is more like 12-15. The 102 is good for another 5 or so over the 92.
Reply
Old May 16, 2014 | 02:08 PM
  #15  
mikesimpalass's Avatar
Thread Starter
TECH Regular
 
Joined: Jan 2007
Posts: 403
Likes: 17
Default

The irony is that I had no problem picking a short block, cam, and heads. But with the intake, I can't seem to make a decision and stick with it
Reply
Old May 16, 2014 | 02:13 PM
  #16  
Rise of the Phoenix's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Dec 2009
Posts: 9,728
Likes: 13
From: Jefferson City, MO
Default

If you've got the money set aside for the FAST intake/TB setup, then just go that route. You're setup is not really optimal for a single plane intake/TB setup, so you might as well just get as much power out of her as you can and go with the FAST intake/TB setup.
Reply




All times are GMT -5. The time now is 05:17 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE