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

Pcmforless Quiestions?????????????

Thread Tools
 
Search this Thread
 
Old Apr 1, 2006 | 01:56 PM
  #1  
C4driver99's Avatar
C4driver99
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 688
Likes: 0
From: Concord NC
Default Pcmforless Quiestions?????????????

Hello

I didnt want to bother Alvin but I am mandatory for my chip to be reprogrammed. I think the upgrades(mine and the unknown from the previous owner have made it run like ****) I know that it will be customized and that it will run cooler, seat of the pants throttle response ect. ect........Id like to know how much gain is that worth into h.p.,torque, and sound. Thanks to all who contribute
Reply
Old Apr 1, 2006 | 02:57 PM
  #2  
93 ragtop's Avatar
93 ragtop
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Default

IMO a lot is going to depend on what mods have been done. If it is basically stock, then a small amount of power, help smoothness, a little crisper on the throttle response, but in all honestly GM did not leave 50 hp on the table when programming these cars. But my concern would be if the car is not running well now, is it due to programming or other things ie. wires, plugs etc.?
Reply
Old Apr 1, 2006 | 03:37 PM
  #3  
C4driver99's Avatar
C4driver99
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 688
Likes: 0
From: Concord NC
Default

mods lol well im not sure all of them but ive had it dynoed at 387 crank h.p. Ive got a open lid, K&N Filter, Accel wires, Bosh +4 plugs, Flowmaster 40 series mufflers, True dual, Gutted cats, MSD Ignition, Air Foil, Power coupler, Taken off the air silencer, Lowered the Front and Rear, New suspension, BFG TIRES, ZR1 Rims, Upgraded battery,starter,coil,rotor cap ect. to high performance parts, Weight recuction, About to order some pulleys New cooling system, 160 Thermostat, Cleaned up the throttle body real good if that counts??????.New 24 lb injectors withh high performance pump and new filter........I know all that dont add up but im not sure what the previous owner did either so it stands open for guesses I do regular maintance, Tune ups,Cleanings, ect. So Its gotta be the computer. I hope it is because its free easy horsepower. So yea any help would be greatly needed
Reply
Old Apr 1, 2006 | 03:40 PM
  #4  
C4driver99's Avatar
C4driver99
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 688
Likes: 0
From: Concord NC
Default

BTW its a 1986, Automatic, L98
Reply
Old Apr 1, 2006 | 04:07 PM
  #5  
93 ragtop's Avatar
93 ragtop
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Default

well with 387 crank hp it is not stock. I really believe you need to talk to Alvin. Do you have a way do do data scans, ie datamaster and a laptop? Without knowing the mods ie. cam size etc, I would think he will need at least that at a mimimum but again you need to ask the chief. Good luck.
Reply
Old Apr 1, 2006 | 05:03 PM
  #6  
Red Tornado's Avatar
Red Tornado
Team Owner
 
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
Default

Originally Posted by 93 ragtop
....but again you need to ask the chief. Good luck.
well said

email, pm, or call alvin......he will help you
Reply
Old Apr 3, 2006 | 12:45 AM
  #7  
USAsOnlyWay's Avatar
USAsOnlyWay
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Default

Maybe I am too late but I would warn you...

1) "I am not sure of what the previous owner did either" :LOL: !!!!! Mail-order tuning is a shot in the dark at best, you need to be able to tell the tuner 100% of what has been done otherwise there is no point at all. Things like suspension/wheels/tires yadda yadda not important. Things like fuel/air/engine NEED TO BE KNOWN!

2) Like I said mail-order tuning is a shot in the dark at best. I had poor experiences with it. IMO, I wouldn't get a chip burned until you can have it done in person.

Good luck!....You'll need it...

P.S. Oh yeah, when they mess up the burn...they'll point the finger at you/engine. So if I were you I would make sure that puppy is running smooth before I dared a mail-order. With a MAF car the tune shouldn't hurt the car (especially one so close to stock) at all, if it isn't running right, it more than likely is the mechnical aspects not the stock tune...

Last edited by USAsOnlyWay; Apr 3, 2006 at 12:48 AM.
Reply
Old Apr 3, 2006 | 01:29 AM
  #8  
sami85L98's Avatar
sami85L98
Le Mans Master
 
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
Default

I see u r from concord, NC thats where alvin lives so i did not understand why u want to get a mail order tune, when he can do in person, alvin is agreat tuner no question about it.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Apr 3, 2006 | 10:35 AM
  #9  
MrNuke's Avatar
MrNuke
Le Mans Master
10 Year Member
 
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Default

Originally Posted by C4driver99
mods lol well im not sure all of them but ive had it dynoed at 387 crank h.p. Ive got a open lid, K&N Filter, Accel wires, Bosh +4 plugs, Flowmaster 40 series mufflers, True dual, Gutted cats, MSD Ignition, Air Foil, Power coupler, Taken off the air silencer, Lowered the Front and Rear, New suspension, BFG TIRES, ZR1 Rims, Upgraded battery,starter,coil,rotor cap ect. to high performance parts, Weight recuction, About to order some pulleys New cooling system, 160 Thermostat, Cleaned up the throttle body real good if that counts??????.New 24 lb injectors withh high performance pump and new filter........I know all that dont add up but im not sure what the previous owner did either so it stands open for guesses I do regular maintance, Tune ups,Cleanings, ect. So Its gotta be the computer. I hope it is because its free easy horsepower. So yea any help would be greatly needed
If you dynoed at 387hp, your car has a LOT more mods than what you are listing you might not know about.

Remember '86's came with 235hp. Your engine might be a 383, different heads , different cam, etc ...
Reply
Old Apr 3, 2006 | 12:07 PM
  #10  
GlennS87's Avatar
GlennS87
Drifting
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 1999
Posts: 1,261
Likes: 6
From: Middletown New Jersey
Default

Originally Posted by C4driver99
mods lol well im not sure all of them but ive had it dynoed at 387 crank h.p.

Did you pull the motor from the car? Otherwise how would you have gotten a legitimate hp rating at the crank? Please tell us more details about where and when you got this info. Something doesn't sound right.
Reply
Old Apr 3, 2006 | 12:42 PM
  #11  
Alvin's Avatar
Alvin
Drifting
 
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
Default

Hey, If you have any questions or anything just send me a email alvin@pcmforless.com.

you can also call however i've been spending all day in the machine shop lately and between not getting a good signal and it being loud as crap I don't even try to answer my phone until I get back to my office.
Reply
Old Apr 3, 2006 | 01:00 PM
  #12  
RRT vette's Avatar
RRT vette
Le Mans Master
15 Year Member
 
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Default

Originally Posted by GlennS87
Did you pull the motor from the car? Otherwise how would you have gotten a legitimate hp rating at the crank? Please tell us more details about where and when you got this info. Something doesn't sound right.
Thats a lot of HP for a L98 with those mods. I still don't know about the air silencer mod!
Reply

Get notified of new replies

To Pcmforless Quiestions?????????????





All times are GMT -4. The time now is 06:10 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
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-8
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-9
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