intercooled injectors

[farmerzo]

I'm just wondering if injectors made for an intercooled engine would still work in a nonintercooled engine. What would be the down side to doing this? thanks

 

[formula]

I think that the non-intercooled engines use 9mm injectors and the intercooled ones use 7mm injectors. You can get sleeves that will fit the 7mm injectors so you can put them in the 9mm holes. As far as any downsides, if you use bigger injectors, such as POD's you may run into some EGT issues. Perhaps someone else will have info to add. Hope this helps.



Sean

 

[BushWakr - RIP]

I'm certainly no expert (expert= ex~unknown factor, spirt~drip under pressure)

But the main issues are pop-off pressures, spray pattern/angle, number of holes, duration of release, and perhaps some others.

You can interchange injectors generally but there are different sizes for the adaptor "collar" when going between early 1st Gen's and later ones.

Also in the case of the Lucas injectors, they are referred to as "large sac injectors" and they have a tendency to retain a tiny amount of fuel aftere they open/close, that bit of remaining fuel kinda drips and causes some of the smoke at idle.



As for the pumps thing, there are modifications made interanlly to these pumps depending on the application, such as, marine/industrial, light truck (ours) etc.

Power Wagon has posted a bit on this.

Since our trucks don't "breath" as well as any of the other Gen trucks, we need to impove airflow alot. Porting the head, a good manifold porting or aftermarket one, improved turbo efficiency, exhaust, cam change, and other things commonly used to increase airflow will allow us to us the fuel the pump can provide.

Our pumps can flow enough fuel when used with larger injectors, that's true. But you need to factor in "usefull life expectancy" when you really uprated the work load on them.



Bob.

 

[formula]

I think there's also an issue (please don't quote me on this one) with the engines that use the larger diameter injectors having problems with cracking, etc. around the injector holes due to the size of the hole weakening the head in that area. I'm not sure how common this problem is, or if it may be aggravated by increased cylinder pressures.



Sean