C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

more horsepower

Thread Tools
 
Search this Thread
 
Old Jun 12, 2014 | 10:17 PM
  #21  
captainkawasaki's Avatar
captainkawasaki
Instructor
 
Joined: Nov 2010
Posts: 172
Likes: 0
Default

I shoved several large wads of hundred dollar bills into the throttle body, huge performance boost!
Reply
Old Jun 12, 2014 | 11:03 PM
  #22  
Tom400CFI's Avatar
Tom400CFI
Team Owner
Pro Mechanic
20 Year Member
 
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Default

Originally Posted by 87vertible
Just wanted to know if anyone knows how to gain
More horsepower without having to add on to the engine. Something simple , maybe bolt on. I have a 87 convertible . thanks again.
So far, you've gotten recommendations that run the gamut. How about telling us what your performance goals are, and what you budget is?
Reply
Old Jun 13, 2014 | 12:53 AM
  #23  
Annoyed's Avatar
Annoyed
Instructor
 
Joined: Jun 2014
Posts: 248
Likes: 1
Default

Originally Posted by Rohn
Best big bang for the buck may be an LS conversion...
Yep.

Also, exhaust wrap, better/lighter/slipperier engine oil and heat shielding around the air filter and tube/pipe. Just look at everything on your car and think "how can I make this better and more efficient, how much power will I get and how much will it cost me".. then do the math.
Reply
Old Jun 13, 2014 | 12:55 AM
  #24  
Annoyed's Avatar
Annoyed
Instructor
 
Joined: Jun 2014
Posts: 248
Likes: 1
Default

Originally Posted by Tom400CFI
So far, you've gotten recommendations that run the gamut. How about telling us what your performance goals are, and what you budget is?
Was gonna say the same thing. It all depends on car, engine, what owner wants, his budget....
Reply
Old Jun 13, 2014 | 09:59 AM
  #25  
89 Vett's Avatar
89 Vett
Burning Brakes
10 Year Member
 
Joined: Jan 2009
Posts: 871
Likes: 15
From: Shepherdsville Kentucky
Default

Originally Posted by GREGGPENN
It's hard for the novice to understand an engine is a balanced "system".
This man is wise.
Reply
Old Jun 13, 2014 | 12:24 PM
  #26  
ch@0s's Avatar
ch@0s
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Default

There is no cheap easy HP. You can go full bolt on without going into the engine but the intake is going to limit your hp.
Reply
Old Jun 13, 2014 | 02:29 PM
  #27  
GREGGPENN's Avatar
GREGGPENN
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Default

While we are splitting hairs....

For the novice, wouldn't "not going into the engine" include intake/exhaust manifolds? For the experienced builder, "not going into the engine" would mean the long-block.

Wait! Manifolds bolt-on, right? Wait! So do heads! So do main caps and oil pans! LOL

"Bolt-ons" CAN mean different things to different people.
Reply
Old Jun 13, 2014 | 03:13 PM
  #28  
ch@0s's Avatar
ch@0s
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Default

Originally Posted by GREGGPENN
While we are splitting hairs....

For the novice, wouldn't "not going into the engine" include intake/exhaust manifolds? For the experienced builder, "not going into the engine" would mean the long-block.

Wait! Manifolds bolt-on, right? Wait! So do heads! So do main caps and oil pans! LOL

"Bolt-ons" CAN mean different things to different people.
Only if you a splitting hairs.
To a car guy boltons are anything that does not require going into the engine..
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Jun 13, 2014 | 03:56 PM
  #29  
rlane5's Avatar
rlane5
Pro
20 Year Member
 
Joined: May 2002
Posts: 635
Likes: 6
From: New Jersey
Default

I just did a LS swap, so for me that's like starting all over again. The vette is just about, at the point, were I'm pleased with the swap. I needed to finish the A/C system. So now I'm at the performance part.Bolt-ons to me is, heads, cam, intake converter and exhaust.
I've tried and have change a lot of parts in my C4 from engine to a solid 9" rear, which I broke the spider gears and pulled it back out of the car. I've always wanted it to be a daily driver and something my wife, would not mind riding in. When I had the SBC in it, I got to the point were I hated driving it, the smell and sound of the exhaust, the flat spot, under 2500 rpms, and most of all the ECM, going crazy when ever it wants. And if we look at a lot of the post in the C4 section, it is ECM related. Ch@0s thanks again you were BIG HELP with me getting my swap together.
Randy

Last edited by rlane5; Jun 13, 2014 at 04:03 PM. Reason: add a sentence
Reply
Old Jun 13, 2014 | 04:08 PM
  #30  
GREGGPENN's Avatar
GREGGPENN
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Default

Originally Posted by ch@0s
Only if you a splitting hairs.
Might as well. I think the OP left.
Reply
Old Jun 14, 2014 | 12:18 AM
  #31  
89dd's Avatar
89dd
Burning Brakes
Supporting Member
10 Year Member
Photogenic
Liked
Top Answer: 1
 
Joined: Jul 2012
Posts: 895
Likes: 91
From: Poughkeepsie, NY
Default

Speed costs money. Just depends how fast do you want to go?
Reply
Old Jun 14, 2014 | 04:47 AM
  #32  
ANTI VENOM's Avatar
ANTI VENOM
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Default

Originally Posted by GREGGPENN
Might as well. I think the OP left.
Reply
Old Jun 14, 2014 | 11:31 AM
  #33  
TA's Avatar
TA
Team Owner
25 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
Default

Originally Posted by rlane5
I just did a LS swap, so for me that's like starting all over again. The vette is just about, at the point, were I'm pleased with the swap. I needed to finish the A/C system. So now I'm at the performance part.Bolt-ons to me is, heads, cam, intake converter and exhaust.
I've tried and have change a lot of parts in my C4 from engine to a solid 9" rear, which I broke the spider gears and pulled it back out of the car. I've always wanted it to be a daily driver and something my wife, would not mind riding in. When I had the SBC in it, I got to the point were I hated driving it, the smell and sound of the exhaust, the flat spot, under 2500 rpms, and most of all the ECM, going crazy when ever it wants. And if we look at a lot of the post in the C4 section, it is ECM related. Ch@0s thanks again you were BIG HELP with me getting my swap together.
Randy
Wow Randy, I think you may hold the record for the most engine combos in your car.

Kudos to you for not being afraid to scrap a combo and start over from scratch

Any times from the LS yet?
Reply
Old Jun 14, 2014 | 11:36 AM
  #34  
TA's Avatar
TA
Team Owner
25 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
Default

For me, bolt ons always meant any mods done without digging into the engine (stock heads/cam). For me this included headers, intake swap, RRs, injectors, computer tweaks, pulleys, etc., etc. I know guys will argue the piont, but these little changes DO add up over time. The question is whether or not its cost effective.
Reply
Old Jun 14, 2014 | 01:01 PM
  #35  
ch@0s's Avatar
ch@0s
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Default

Originally Posted by TA
For me, bolt ons always meant any mods done without digging into the engine (stock heads/cam). For me this included headers, intake swap, RRs, injectors, computer tweaks, pulleys, etc., etc. I know guys will argue the piont, but these little changes DO add up over time. The question is whether or not its cost effective.
IMO If you are going to do Heads and cam eventually then you are prepared. So going bolts-ons first is a great start. It does make a big difference This is my plan with MY DD GTO.
Reply




All times are GMT -4. The time now is 11:53 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE