Click here to visit LS1Tech
Click here to visit Performance Trucks
Click here to visit Mod Motor Tech
Click here to visit Modern Hemi

PerformanceTrucks.net Forums  

Go Back   PerformanceTrucks.net Forums > GENERAL TRUCK PERFORMANCE, PROJECTS, & GROUP DISCUSSION...specifically > INTERNAL ENGINE MODIFICATIONS
Sign in using an external account
Register Forgot Password?
Register Albums FAQ Members Calendar Search Today's Posts Mark Forums Read VendorsUsed CarsGarageStore TSBs & Recalls
Welcome to PerformanceTrucks.net Forums

Reply
 
LinkBack Thread Tools Search this Thread
Old 01-30-2011, 02:50 PM   #1
Trader Rating: 0
Teching In
 
Join Date: Feb 2010
Posts: 13
Default boosted/sprayed 4.3L, how much will it take?

How much power can the stock internals take if I retard timing 6+ degrees? Anyone with turbo/supercharged 4.3 vortec trucks out there?


2006 silverado with 4.3L, vortech s/c 9psi, 2 extra fuel injectors, intercooler, water injection, nitrous...maybe 320bhp now + more torque

I have been wanting to swap the pulley to 12-14 psi boost, and up nitrous from 20 to 30-40 shot... would use a progressive controller for a little less shock. Plugs are 2 steps cooler than stock, will get 2 more steps cooler if I go this route. Want to get to 390-400bhp with more torque

Last edited by 383chevy; 01-30-2011 at 03:03 PM.
383chevy is offline   Reply With Quote
Old 01-31-2011, 01:23 AM   #2
Trader Rating: 0
On The Tree
 
Join Date: Nov 2010
Posts: 173
Default

pics of this setup on the truck? I also have a 4.3 and keep seeing used kits go for under $1500
__________________
2006 Silverado
262_NBS is offline   Reply With Quote
Old 01-31-2011, 04:35 AM   #3
Trader Rating: 13
13 Second Truck Club
 
A Low Dime's Avatar
 
Join Date: Mar 2008
Location: Arlington (DFW), Texas
Posts: 2,663
Send a message via AIM to A Low Dime
Default

X2 on some pics

Quote:
Originally Posted by 383chevy View Post
How much power can the stock internals take if I retard timing 6+ degrees? Anyone with turbo/supercharged 4.3 vortec trucks out there?


2006 silverado with 4.3L, vortech s/c 9psi, 2 extra fuel injectors, intercooler, water injection, nitrous...maybe 320bhp now + more torque

I have been wanting to swap the pulley to 12-14 psi boost, and up nitrous from 20 to 30-40 shot... would use a progressive controller for a little less shock. Plugs are 2 steps cooler than stock, will get 2 more steps cooler if I go this route. Want to get to 390-400bhp with more torque

The 4.3s seem to hold up pretty well to nitrous and boost. The only time I hear about one going bad is with bad tuning, popping head gaskets and/or knocking. There are a few guys who have sprayed 175-200shot and held up for awhile, another couple have seen 16-18psi.

If you keep up with the fuel and timing, it will love it.Ive been spraying mine from 92k miles to about 118k miles, Ive gone through alot of nitrous. Im gonna be hitting mine with a 150-200 shot this year.
__________________
-Brendan
00' 4.3 S10 224/230 cam --Sold
2001 Ext. Cab Silverado l Black 18" Titans l Colormatched l 3" Magnaflow l 4" MBRP Tailpipe l LS1 E Fans

A Low Dime is offline   Reply With Quote
Old 07-25-2011, 01:50 AM   #4
Trader Rating: 0
Teching In

 
Join Date: May 2011
Posts: 2
Default

@A Low Dime
I have a 06 silverado and I just bought a NOS Sniper wet kit and wondered how far I could push it HP wise on the stock internals.
hotdogjones2 is offline   Reply With Quote
Old 07-25-2011, 11:02 PM   #5
Trader Rating: 19
PT's Slowest Truck

 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,872
Default

I've heard that they hold up pretty good, as they're basically a small block chevy -2 . Unfortunately my dad just had to swap out his bone stock 4.3 in his 96 Blazer, which has been properly maintained it's whole life, as it developed a rod knock then threw the rod, with about 130k on the ticker. Shit happens, anything can break and Murphy's Law dictates that it will happen at the worst time, so it did for my pop
__________________
Billy
[SIGPIC][/SIGPIC]
[URL=http://www.cardomain.com/memberpage/648999]My CarDomain Page[/URL]
[FONT=Garamond]99 5.3 Z71 RC/SB - [COLOR="Blue"]FLT Level7 65E[/COLOR], [COLOR="Purple"]Circle-D Billet 258mm 2B Multi-Disc[/COLOR], Comp 206/212 515/520 114, LS6 Springs, Harland Sharp 1.7's, [COLOR="Red"]BlackBear 02 PCM[/COLOR], 02 Injectors, 160* stat, 05 E-fans, Nelson Harness, Volant CAI w/ Ram Air, StainlessWorks Headers and !Catted! Y-Pipe, DMH 3" E-Cutout, 18" Magnaflow dumped over axle, 3.73 G80, Dropped on Gibbs 20's [B]**H/C LQ9, 4.10's, and TruTrac eventually**[/B] [/FONT]
budhayes3 is offline   Reply With Quote
Old 07-27-2011, 06:34 PM   #6
Trader Rating: 0
TECH Apprentice
 
Join Date: Aug 2008
Location: Ontario, Canada
Posts: 368
Default

My 4.3 has lived through lots of 100 shot runs and a few 150's. And I'll put it this way, it's not on a conservative tune. Or anything resembling a nitrous tune. Shit it had a bottle through it on stock plugs.
__________________
2006 Silverado
"Little Black Bitch"
Bottle Fed 5.3 w/more compression, better heads, bigger cam, improved intake and exhaust, and a PCM reflash. In front of a 5 speed.
blackcash is offline   Reply With Quote
Old 08-15-2011, 07:35 PM   #7
Trader Rating: 0
Teching In

 
Join Date: May 2011
Posts: 2
Default

Dude i put a bottle through on stock plugs and 50shot and it ran good at first then shitty till i changed plugs but it was also was running really rich. I have a hptuners tune.
Im running 2 degree retarded for the Nitrous.
What jets are you running for 100shot?
hotdogjones2 is offline   Reply With Quote
Old 08-15-2011, 09:07 PM   #8
Trader Rating: 0
TECH Apprentice
 
Join Date: Aug 2008
Location: Ontario, Canada
Posts: 368
Default

Shit I can't remember off the top of my head, whatever Nitrous Outlet recommends for the 100 shot with their nozzle kits.
__________________
2006 Silverado
"Little Black Bitch"
Bottle Fed 5.3 w/more compression, better heads, bigger cam, improved intake and exhaust, and a PCM reflash. In front of a 5 speed.
blackcash is offline   Reply With Quote
Old 07-09-2013, 12:25 AM   #9
Trader Rating: 0
Registered User
 
Join Date: Jul 2013
Location: Houston
Posts: 1
Default 4.3 big power

I have been doing some reading and I found an article from HOT ROD mag on a built 4.3l they did that made 350hp/NA on the fly. I am starting to do that build but it is going slowly. According to the article you could easily make 500hp with forced induction plus what ever bottle you want on it. here is a link to the article.
Making Big Horsepower With A 4.3L Chevy V-6 - Hot Rod Magazine
dclaspill is offline   Reply With Quote
Old 07-09-2013, 07:03 AM   #10
Trader Rating: 3
formerly slow03 (11-04-2011)
 
Join Date: Jun 2011
Posts: 322
Default

Nice thread dig noobie
__________________
13 ecsb nht, Esky ESV 20's, TSP LT's, ORY, magnaflow, airaid, tuned by New Era Performance. 366whp/387wtq
slow2008 is offline   Reply With Quote
Old 07-09-2013, 07:03 AM
PerformanceTrucks
Ford F150




Paid Advertisement
Reply

Tags
43, 43l, boosted, boostedsprayed, handel, hold, internals, nitrous, nos, power, retard, silverado, stock, timing, vortec


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 10:26 AM.

 



Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2010, Crawlability, Inc.

PerformanceTrucks.net and InternetBrands, Inc. are not affiliated with the Ford Motor Company