Injector Upgrade Question

Injector Upgrade Question

Author
Discussion

johno

Original Poster:

8,491 posts

287 months

Saturday 5th May 2007
quotequote all
Pintle or 4 hole disk type ?

I am advised the 4 hole disk type are the upgrade to the slightly older pintle style. These being Bosch 30lbs jobs.

Before we enter into the bigger injector debate, my engine was rebuilt by V8D last year, with one of Rob's Stealth cams, balanced etc with trumpets and ported/matched inlet. It will be getting a 72mm throttle (want to keep it standard looking) along with new loom and Emerald ECU. It will be running wasted spark/coil packs.

So I'm not just doing injctors for the sake of it, the engine did over 340bhp on V8D's engine dyno last year and runs a Mark Adams chip as the standard chip couldn' fuel it enough.

The winter project therefore is to give the induction and fuelling that the engine build should have and get rid of the awful dizzy and AFM set up.

Any views on the injectors ?

rev-erend

21,503 posts

289 months

Monday 7th May 2007
quotequote all
I just bought 8 accel 30lbs injectors for £140 ($276) :

www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_749691_-1_10299

johno

Original Poster:

8,491 posts

287 months

Tuesday 8th May 2007
quotequote all
Interesting read, another site propogating the view that pintle beats disk. This wold have been my view historically. However, chatting to Five0 they have no issue with 4 hole disk type and the disk tyoe i'm lookng at buying is the upgrade to the earlier same injector, but it was a pintle design instead.

No knoledge of Accel injectors at all, let us know how you get on Rev ?

Bomber Denton

8,759 posts

273 months

Tuesday 8th May 2007
quotequote all
rev-erend said:
I just bought 8 accel 30lbs injectors for £140 ($276) :

www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_749691_-1_10299



Have you fitted these yet Alan?

350matt

3,749 posts

284 months

Wednesday 9th May 2007
quotequote all
Do they have any information on droplet size?

The smaller the droplet the better the atomisation = more power (sometimes)

If these 4 hole discs can beat the droplet size of your old pintles then give them a go

Matt

rev-erend

21,503 posts

289 months

Monday 14th May 2007
quotequote all
Bomber Denton said:
rev-erend said:
I just bought 8 accel 30lbs injectors for £140 ($276) :

www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_749691_-1_10299



Have you fitted these yet Alan?


Just in USA at moment and have them sitting on my desk..

It will be a little while before I fit them though as I need to put at engine back in my car .. as I have to be in the wedge at Le Mans..