Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

26lbs to 28lbs Question

Thread Tools
 
Search this Thread
 
Old Jun 16, 2008 | 01:23 PM
  #1  
2000Z28M6's Avatar
Thread Starter
TECH Fanatic
20 Year Member
Photogenic
iTrader: (13)
 
Joined: Apr 2003
Posts: 1,447
Likes: 1
From: C.C., TX
Lightbulb 26lbs to 28lbs Question

Guys,

I currently have the 26lbs and will be dropping in a set of the 28lbs.

I had the car tuned last yr with HP tuners and it's running good.

What can I expect if I just drop them in without re tunning? Currently I think my car is around 370-380rwhp.


The whole point of this swap is a HSW dry kit coming soon. Will be doing a 75hp shot, I will get the HSW controller to go with it.

Anything I need to consider or think about?

Thanks!
Reply
Old Jun 16, 2008 | 09:59 PM
  #2  
2000Z28M6's Avatar
Thread Starter
TECH Fanatic
20 Year Member
Photogenic
iTrader: (13)
 
Joined: Apr 2003
Posts: 1,447
Likes: 1
From: C.C., TX
Default

Oh Wow, no comments TTT, any help is appreciated!
Reply
Old Jun 17, 2008 | 02:51 PM
  #3  
ZL1Killa's Avatar
TECH Resident
iTrader: (17)
 
Joined: Sep 2004
Posts: 3,747
Likes: 0
From: NC - Charlotte area
Default

i personally would have grabbed some 32# or 36# injectors just for extra capable power later.

you will want to re-tune, your car will run rich. HOWEVER, as you are going from 26 to 28 it may not run very rich...BUT the point is you will still want to get it re-tuned
Reply
Old Jun 18, 2008 | 05:58 PM
  #4  
BadBandit69's Avatar
11 Second Club
iTrader: (13)
 
Joined: Jan 2006
Posts: 406
Likes: 0
From: Bourbonnais, IL
Default

yea i believe (correct me if im wrong guys) that your cars computer doesn't sense how big your injectors are. Bacially its just gonna spray out fuel according to what ever percentage of the injectors capasity you have dialed in your tune. so 80% duty cycle on a 26lbs injector is less fuel than 80% on a 28lbs injector. so yea ur gonna want to retune so u don't run too rich. prolly not too rich where u will hurt anything just lose power.
Reply
Old Jun 18, 2008 | 11:57 PM
  #5  
2000Z28M6's Avatar
Thread Starter
TECH Fanatic
20 Year Member
Photogenic
iTrader: (13)
 
Joined: Apr 2003
Posts: 1,447
Likes: 1
From: C.C., TX
Default

OK, wish I could find a local HP tuner in Corpus Christi or surrounding area.
Reply
Old Jun 19, 2008 | 01:51 AM
  #6  
TURB0Z's Avatar
Registered User
 
Joined: Jun 2008
Posts: 3
Likes: 0
Default

may be a drive but they are bad ***
Texas Speed & Performance, LTD.
329 East HWY 62/82
Wolfforth, TX 79382
806-866-0734
Reply




All times are GMT -5. The time now is 07:08 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