Notices

Boost

Thread Tools
 
Search this Thread
 
Old Apr 28, 2010 | 10:24 PM
  #1  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
Boost

hey yall. im kinda tossin round the idea of gettin a 70 f250 with a 300 in it. ive also got a friend with three 25 millimeter turbos (two work fine, the third needs rebuilt) that hes willin to sell to me for $200. i, bein the mad scientist i am, want better fuel economy and more power, and am thinkin to put all three on the 300. itd be a two into one setup, and i estimate 30 to 40 lbs of boost, through a four barrel TBI injection. my question is: will a bone stock 300 be able to handle that kind of pressure?? and would i even be able to run standard 87 pump gas at that rate?
 
Reply
Old Apr 29, 2010 | 09:26 AM
  #2  
AbandonedBronco's Avatar
AbandonedBronco
Moderator
15 Year Member
Photogenic
Liked
Loved
Joined: Dec 2007
Posts: 7,986
Likes: 104
From: Boise, Idaho
Club FTE Gold Member
Check out this forum:

FORDSIX PERFORMANCE • View forum - Turbo, Supercharger, and Nitrous

Either way, if you're serious about the project and complete it, POST PICS! I'd love to see that.
 
Reply
Old Apr 29, 2010 | 10:31 AM
  #3  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
if it goes through for me, i will for sure!
 
Reply
Old Apr 29, 2010 | 12:15 PM
  #4  
Harte3's Avatar
Harte3
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
IIRC, anything more than about 5lbs.of boost and it's demolition time. 30-40 lbs.of boost is in the big truck (18 wheeler) range.
 
Reply
Old Apr 29, 2010 | 12:20 PM
  #5  
AbandonedBronco's Avatar
AbandonedBronco
Moderator
15 Year Member
Photogenic
Liked
Loved
Joined: Dec 2007
Posts: 7,986
Likes: 104
From: Boise, Idaho
Club FTE Gold Member
True. And if I remember the formula right, 5 lbs is plenty for the 300 as is.

Low end = (0.053 * ci * (boost + 14.7))
High end = (0.077 * ci * (boost + 14.7))

So 5lbs is 313 to 455 hp, which is still a whole lot. 40 lbs would be 870 to 1264hp. Not sure many engines at all can take that kinda cranking on stock internals.
 
Reply
Old Apr 29, 2010 | 12:28 PM
  #6  
fatdan460's Avatar
fatdan460
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
and so trey's pipe dream dies
 
Reply
Old Apr 29, 2010 | 12:37 PM
  #7  
Harte3's Avatar
Harte3
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
Better the dream die than the engine grenade...but man going to the moon was a dream at one time too.
 
Reply
Old Apr 30, 2010 | 12:08 AM
  #8  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
i know its a lot of boost. but bein american iron i figured it should be able to handle fairly decent boost levels at least (i.e. 20 lbs), seeins as the guy id be gettin em from runs 20+ in his stock saab motor...
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Apr 30, 2010 | 12:27 AM
  #9  
fatdan460's Avatar
fatdan460
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
but saabs are built from jets you would probably have to go with arp head studs at the least, and this is all i can suggest, because other than my dad's harley having a turbo on it, i have no experience with them first hand
 
Reply
Old Apr 30, 2010 | 12:31 AM
  #10  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
i was wonderin if i might need some ARPs... i wonder how well a stock 4.0 would receive boost...?
 
Reply
Old Apr 30, 2010 | 12:39 AM
  #11  
fatdan460's Avatar
fatdan460
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
probably about the same. if a motor wasn't meant for a turbo, there is a lot of stuff that will need to be changed, and don't forget about compression ratio
 
Reply
Old Apr 30, 2010 | 12:40 AM
  #12  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
well the good thing is that the compression ratios of the older motors like that wasnt too extreme...
 
Reply
Old Apr 30, 2010 | 12:47 AM
  #13  
fatdan460's Avatar
fatdan460
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
but the stock pistons will be the first thing to say "trey why did you do this to me?"
 
Reply
Old Apr 30, 2010 | 12:55 AM
  #14  
460/5's Avatar
460/5
Thread Starter
|
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
lol. and then ill have an excuse to make the old horse a stroker and throw a cam in the mix, and beef things up to handle 30+ psi...
 
Reply
Old Apr 30, 2010 | 01:17 AM
  #15  
fatdan460's Avatar
fatdan460
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
well, i guess all i can say is do it. and when it blows, and it will, post pics and vids
 
Reply



All times are GMT -5. The time now is 11:59 AM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE