Fordmods Logo

Injector & Fuel Pressure Talk - Turbo Application 

 

Page 3 of 5 [ 64 posts ] Go to page Previous  1, 2, 3, 4, 5  Next

 
Posted: Sun Mar 13, 2005 9:35 pm 
Smokin em up
Offline

Posts: 227

Joined: 11th Dec 2004

Location: Gold Coast
QLD, Australia

SVO XR6 wrote:
i want thoes injectors!!!
where from?


The 24lbs injectors are 2.6L Magna 4 cylinder injectors. Six should cost you about $200 2nd hand at the most (really ~$160) for ones in perfect condition. They are Bosch 775 blue tops.

A rough guide is 30lbs will support 300rwhp, 36lbs will support 360rwhp, and so on at reasonable fuel pressures (40-55psi) and good safe A/F ratios.
Top
 Profile  
 
 
Posted: Sun Mar 13, 2005 9:48 pm 
Smokin em up
Offline

Posts: 227

Joined: 11th Dec 2004

Location: Gold Coast
QLD, Australia

pyroay wrote:
i'll let you know how i go with it.

Does anyone know where i can get liquid extruding done, you knwo where they pump a viscous and gritty fluid through the runners to bore them out and smooth off any dags??? somewhere in dandenong or Melb?


I have only ever seen an actual "Extrude Hone" here on the Gold Coast but the company uses it only on plastic molding. Andrew Sanders from Specialised Power Porting is supposed to be very good.
Top
 Profile  
 
 
Posted: Sun Mar 13, 2005 11:58 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 1680

Joined: 5th Nov 2004

Gallery: 1 images

Ride: 220kw 1600 Datto

Location: Scaaabz
WA, Australia

Bert wrote:
SVO XR6 wrote:
i want thoes injectors!!!
where from?


The 24lbs injectors are 2.6L Magna 4 cylinder injectors. Six should cost you about $200 2nd hand at the most (really ~$160) for ones in perfect condition. They are Bosch 775 blue tops.

A rough guide is 30lbs will support 300rwhp, 36lbs will support 360rwhp, and so on at reasonable fuel pressures (40-55psi) and good safe A/F ratios.

and thoes magna ones will be fine of a XR fuel reg, chasing 250 rwhp?
coz im running 19's atm with 230 rwhp

 

_________________

Image

Top
 Profile  
 
 
Posted: Mon Mar 14, 2005 12:03 pm 
Moderator
Offline
User avatar

Age: 45

Posts: 4654

Joined: 5th Nov 2004

Ride: Drives Like Fun

Power: 318 rwkw

Location: Melbourne Interior: Cappucino Exterior: Sparkling Burgundy
VIC, Australia

Bert wrote:
The 24lbs injectors are 2.6L Magna 4 cylinder injectors. Six should cost you about $200 2nd hand at the most (really ~$160) for ones in perfect condition. They are Bosch 775 blue tops.


Mine are green.

SVO - I got mine through my mechanic...if you're interested in a set, lemme know - I'll ask him.

Cheers,
Steve

 

_________________

Vic Cruises & Events

Top
 Profile  
 
 
Posted: Mon Mar 14, 2005 12:10 pm 
Oompa Loompa
Offline

Age: 47

Posts: 22

Joined: 10th Dec 2004

Ride: Cortina

Location: Brisbane
QLD, Australia

There are two types of Magna injector. The ones they ran factory fitted and then there is another injector which flows exactly the same amount and are commonly used as a cheaper alternative in Magna exchange injectors.

EIS in Queensland informed me of this when I was looking for a set of bigger injectors.

Give EIS a try, if in Queensland, they sell them fairly cheaply brand new.

I don't know the part numbers or colours of the top of my head unfortunately.
Top
 Profile  
 
 
Posted: Mon Mar 14, 2005 1:50 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 1680

Joined: 5th Nov 2004

Gallery: 1 images

Ride: 220kw 1600 Datto

Location: Scaaabz
WA, Australia

dcstraight wrote:
Bert wrote:
The 24lbs injectors are 2.6L Magna 4 cylinder injectors. Six should cost you about $200 2nd hand at the most (really ~$160) for ones in perfect condition. They are Bosch 775 blue tops.


Mine are green.

SVO - I got mine through my mechanic...if you're interested in a set, lemme know - I'll ask him.

Cheers,
Steve


yeah, if you can ;)
cheers

MarkZE, can you give me a number? fanks :D

 

_________________

Image

Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 1:05 am 
Getting Side Ways
Offline
User avatar

Age: 70

Posts: 3555

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

You will need atleast 30 Lb injectors before you even start to make some serious power...
Keep in mind what fuel pressure injectors are run at to compare flow rates....Mitsi I think run at higher f/p.....

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 8:22 am 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 4304

Joined: 5th Nov 2004

Gallery: 9 images

Ride: EF Falcon XT-T

Location: Mornington Peninsula
VIC, Australia

I beleive Jim mock motorsport can get manifolds extrude honed... their EB has a BBM on it that i beleive has been ported using this method.. perhaps contact them, from memory it costs roughly $600..

also a mate of mine is using the magna blue tops in his EA, he's using a aftermarket fuel reg (unsure on specs) and a unichip as he'd maxed out the stock ones (~170rwkw)

 

_________________

FALCN6 - EF GLi Turbo, 20" Rims, Air Bag Suspension, Straight LPG, 225rwkw
DTHWGN - EA GL Wagon, LTD Interior, Satin Black, 5.0, Turbo
RACER - EF Futura , 5.0, 5 Speed
PROJECT - 83 Thunderbird, Lowered, 18" Billet Wheels
DAILY - BA Fairmont Ghia 5.4 3V

Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:12 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

EBXR8380 wrote:
You will need atleast 30 Lb injectors before you even start to make some serious power...
Keep in mind what fuel pressure injectors are run at to compare flow rates....Mitsi I think run at higher f/p.....


Yep, I cant see the point in faffin around with little magna injectors...

SVO XR6, are you running lean now?
Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:16 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 1680

Joined: 5th Nov 2004

Gallery: 1 images

Ride: 220kw 1600 Datto

Location: Scaaabz
WA, Australia

CHEF wrote:
EBXR8380 wrote:
You will need atleast 30 Lb injectors before you even start to make some serious power...
Keep in mind what fuel pressure injectors are run at to compare flow rates....Mitsi I think run at higher f/p.....


Yep, I cant see the point in faffin around with little magna injectors...

SVO XR6, are you running lean now?
not running lean, but it hits 100% duty

i get my car back soon with a extra Throttle body and im guessing its goin to be leaner, so i need a cheep way to keep fuel there till i go turbo(in about a yr)

 

_________________

Image

Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:21 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

Ah better slip some in then, do they run off the EEC ok? Ive heard they do, but idle could be suss
Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:28 pm 
Oompa Loompa
Offline

Age: 47

Posts: 22

Joined: 10th Dec 2004

Ride: Cortina

Location: Brisbane
QLD, Australia

Yeah I would have to agree about bigger is better on injectors for a turbo engine. Don't bother with anything smaller than about 50 lbs injectors. Around about the 550 cc/min minimum otherwise you will end up upgrading them again once you get a feel for the engine and wind the boost up.

I am on my third set of injectors now.

I had 340 cc/min injectors, maxxed them out, got hold of some 440cc/min injectors and maxxed them out so decided I wasn't messing around the third time and got some 750 cc/min Rochestors and stuck them in there.

Don't worry about idle too much unless you are trying to use a standard ECU. My car idles okay and it has a huge cam as well.

Also running high fuel pressures with little injectors is a good way to make a 600 hp fuel pump into a 400hp one.

Fuel flow capability of the pump changes with the inverse square of pressure it is required to supply. If you increase the working pressure you reduce the flow capability of the pump. This is particularly important when using rising rate regulators.

Always trial adjust your regulator up to the maximum pressure it will see in operation (allowing for rate rise if applicable) then flow your pump while the engine is stopped. Measure the amount of time it takes to get a litre or two of fuel returning to the tank or swirl pot and this needs to be able to keep up with your injectors.

Moral of the story is a 600 hp pump is not necessarily a 600 hp pump when it is pumping fuel at 70 or 80 psi into a rising rate regulator. Try to keep base pressures down around the 35 - 43 psi mark maximum especially if using a rising rate reg or you risk fuel line failures and fuel fires etc.
Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:31 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 1680

Joined: 5th Nov 2004

Gallery: 1 images

Ride: 220kw 1600 Datto

Location: Scaaabz
WA, Australia

CHEF wrote:
Ah better slip some in then, do they run off the EEC ok? Ive heard they do, but idle could be suss


EMS 8860 will run them fine :p

so you think they will do the job?

 

_________________

Image

Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:40 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

ah yeah sorry man forgot you use EMS... pfft ecc :wink:

depends on how much more air is going in, i belive they ahve been used on low boost set ups so you might find them ok... You'd get a set for next to nothing from a big pick n pay style wrecker anyway.
And isnt changing injectors fun :?
Top
 Profile  
 
 
Posted: Tue Mar 15, 2005 4:42 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

just make sure you buy new Orings... I spent a few hours fiddling with leaky orings... I got a petrol stain on the wall...
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 3 of 5  [ 64 posts ]  Go to page Previous  1, 2, 3, 4, 5  Next

Who is online

Users browsing this forum: No registered users and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Mar 29, 2024 9:22 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names