Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:
View Poll Results: Intake Poll
Stock LS1
2.70%
LS6
70.27%
Fast 78mm
5.41%
Fast 90mm
21.62%
Voters: 37. You may not vote on this poll

Intake Opinions needed on stock motor

Thread Tools
 
Search this Thread
 
Old Feb 25, 2007 | 07:46 AM
  #1  
XxXTransAmXxX's Avatar
Thread Starter
TECH Resident
iTrader: (12)
 
Joined: Jul 2004
Posts: 987
Likes: 1
From: Georgetown, IL 61846-1105
Default Intake Opinions needed on stock motor

Hey guys,
I have a 98 LS1 Motor, that I am doing a swap into my LT1 car. Speartech is doing the harness, etc...to make it a plug-n-play deal...

Obviously from what I read, and hear the 98 is the Bastard child of the LS motors...

Right now the motor is just gonna be bolt-on's with a tune headers, and exhaust. Possibly a nitrous kit....

So please help me out, and let me know what you all think would work, if the 90 will work reasonably well, I would like to go with that due to having an extra LS1 block that I will be building a bigger motor for next winter...

Another thing, only keep positive responses too, let's not turn it into a flaming match....
Reply
Old Feb 25, 2007 | 11:32 AM
  #2  
XxXTransAmXxX's Avatar
Thread Starter
TECH Resident
iTrader: (12)
 
Joined: Jul 2004
Posts: 987
Likes: 1
From: Georgetown, IL 61846-1105
Default

12 views, and no-one chiming in?
Reply
Old Feb 25, 2007 | 02:14 PM
  #3  
sidewayz28's Avatar
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

no no no no no no no no no do not put a 90mm intake on with stock heads/cam..strap on an LS6 and youll be happy
Reply
Old Feb 25, 2007 | 02:59 PM
  #4  
Ace$nyper's Avatar
TECH Fanatic
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,854
Likes: 0
From: Fort Washington Pa
Default

Just an ls6 will work fine and dandy.
Reply
Old Feb 25, 2007 | 03:47 PM
  #5  
XxXTransAmXxX's Avatar
Thread Starter
TECH Resident
iTrader: (12)
 
Joined: Jul 2004
Posts: 987
Likes: 1
From: Georgetown, IL 61846-1105
Default

LS6 is what I was thinking, just wanted to see if it would totally kill the driveability of it if I put a 90mm on it, is the FAST 78 even much more than the LS6?
Reply
Old Feb 25, 2007 | 06:14 PM
  #6  
DuronClocker's Avatar
11 Second Club
15 Year Member
iTrader: (25)
 
Joined: Nov 2005
Posts: 1,241
Likes: 1
From: Clearwater, FL
Default

The 90 won't hurt anything on a stock motor, it just won't show a worthwhile improvement over the LS6 for the money invested in it.
Reply
Old Feb 25, 2007 | 06:23 PM
  #7  
2000SS1979's Avatar
11 Second Club
iTrader: (16)
 
Joined: May 2006
Posts: 561
Likes: 1
From: Plymouth, Indiana
Default

Get the professional products intake for some extra bling!
Reply
Old Feb 25, 2007 | 08:15 PM
  #8  
~JOSHUA's Avatar
Banned
iTrader: (92)
 
Joined: Sep 2004
Posts: 7,757
Likes: 2
From: Atlanta
Default

The 90 will make your low/mid range soggier.

The 78 FAST is freaking expensive!

The factory LS6 is plentiful and it's a great intake.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Feb 25, 2007 | 08:47 PM
  #9  
02silvaZ's Avatar
TECH Addict
iTrader: (12)
 
Joined: Jun 2006
Posts: 2,594
Likes: 0
From: Jacksonville, FL
Default

LS6 and a ported t/b, good match-up
Reply
Old Feb 25, 2007 | 08:49 PM
  #10  
02silvaZ's Avatar
TECH Addict
iTrader: (12)
 
Joined: Jun 2006
Posts: 2,594
Likes: 0
From: Jacksonville, FL
Default

'98 is not so bad, smaller cam gear in t/b allows a faster WOT response, '98-'99 had a smaller cam gear in t/b
Reply
Old Feb 25, 2007 | 10:58 PM
  #11  
5_02ls1's Avatar
11 Second Club
iTrader: (20)
 
Joined: Oct 2006
Posts: 3,131
Likes: 0
From: Virginia
Default

i used the weiand its very nice for the money and basicly a metal ls6 it has a removable plate for porting ther was a noticeable differnce in power over the stock unit.
Reply
Old Feb 26, 2007 | 12:27 AM
  #12  
99Z28LS1's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2004
Posts: 1,886
Likes: 0
From: San Antonio
Default

im still on a stock 99 with the plug on it. works great and im over 500rwhp

but i chose LS6 FTW, somewhat cheap and beneficial
Reply
Old Mar 1, 2007 | 12:00 AM
  #13  
sidewayz28's Avatar
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

so for the people that voted FAST 90.. PLEASE explain your reasoning
Reply
Old Mar 1, 2007 | 12:56 PM
  #14  
lsx24's Avatar
Banned
iTrader: (45)
 
Joined: Aug 2003
Posts: 2,556
Likes: 0
From: NC
Default

ls6 is good enough for a bolton car. That and a ported stock tb and you will be all set.
Reply
Old Mar 1, 2007 | 05:26 PM
  #15  
DuronClocker's Avatar
11 Second Club
15 Year Member
iTrader: (25)
 
Joined: Nov 2005
Posts: 1,241
Likes: 1
From: Clearwater, FL
Default

Originally Posted by sidewayz28
so for the people that voted FAST 90.. PLEASE explain your reasoning
Why not? He said he doesn't mind spending the money on it and he'll be putting another motor together next year that's going to take advantage of it. I would usually suggest buying heads before a FAST90, but if he's going to build a boost motor or something next year, then the heads he buys this year won't work well next year, whereas the FAST will.

It'll still give him a benefit over the LS1, and maybe slightly better than an LS6 on stock stuff. When he builds that nice new motor next year, this is one less expense he needs to put out then.
Reply
Old Mar 1, 2007 | 08:14 PM
  #16  
XxXTransAmXxX's Avatar
Thread Starter
TECH Resident
iTrader: (12)
 
Joined: Jul 2004
Posts: 987
Likes: 1
From: Georgetown, IL 61846-1105
Default

Originally Posted by DuronClocker
Why not? He said he doesn't mind spending the money on it and he'll be putting another motor together next year that's going to take advantage of it. I would usually suggest buying heads before a FAST90, but if he's going to build a boost motor or something next year, then the heads he buys this year won't work well next year, whereas the FAST will.

It'll still give him a benefit over the LS1, and maybe slightly better than an LS6 on stock stuff. When he builds that nice new motor next year, this is one less expense he needs to put out then.

Exactly what I am thinking...just wanting to make sure it's not gonna dog the motor...
Reply
Old Mar 2, 2007 | 12:01 AM
  #17  
99Z28LS1's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2004
Posts: 1,886
Likes: 0
From: San Antonio
Default

Originally Posted by DuronClocker
Why not? He said he doesn't mind spending the money on it and he'll be putting another motor together next year that's going to take advantage of it. I would usually suggest buying heads before a FAST90, but if he's going to build a boost motor or something next year, then the heads he buys this year won't work well next year, whereas the FAST will.

It'll still give him a benefit over the LS1, and maybe slightly better than an LS6 on stock stuff. When he builds that nice new motor next year, this is one less expense he needs to put out then.
you have to be careful when installing the FAST..... they come with special bolts that are longer than the factory manifold bolts. i didnt use their bolts and on the 1st run with boost, opened up the FAST on one side. but still managed to make 472/501

goodluck my friend. BOOOST is very fun

Reply
Old Mar 2, 2007 | 02:05 AM
  #18  
DropShipDave's Avatar
Staging Lane
 
Joined: Oct 2006
Posts: 82
Likes: 0
From: Tucson, AZ
Default

I hear the rod bolts in pre 2000 or 2001 cars are weak? You can always get a set of forged pistons and eagle rods since you have that motor out already
Reply
Old Mar 2, 2007 | 05:31 PM
  #19  
somws6bird's Avatar
TECH Enthusiast
 
Joined: Feb 2007
Posts: 552
Likes: 0
From: chicago
Default

I voted LS6 the Fast intakes are nice but just a bit pricey!
Reply
Old Mar 2, 2007 | 06:44 PM
  #20  
wws699's Avatar
11 Second Club
20 Year Member
iTrader: (3)
 
Joined: Dec 2005
Posts: 385
Likes: 1
From: Issaquah, Wa
Default

Originally Posted by 02silvaZ
LS6 and a ported t/b, good match-up

Just did this to my 99... Works great! And if you do change your setup later you can always sell your LS6 intake to someone on here
Reply



All times are GMT -5. The time now is 11:27 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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