If pricing was the same, any reason to choose Lucas/Delphi injectors vs. SVO/Bosch injectors?

I'm leaning towards the Lucas ones due to pricing.

Thx!

 

i found the bosch to be easier to tune...specifically the 42s

 

I just put ACCEL's on mine...

$250 for 8.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by cablebandit:
<strong>i found the bosch to be easier to tune...specifically the 42s</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Easier than the 50# or easier than Lucas? Anyone have issues with the Lucas ones? I can get them much cheaper.

Either way I'm going 42#.

Thx!

<small>[ June 09, 2002, 02:33 AM: Message edited by: MelloYellow ]</small>

 

Mello: I've got 36# Lucas injectors, blueprinted and matched, from RC Engineering (Russ Collins, who also built my NSX World Cup car intake and injectors). They've been on the car for a year with no problems. Ed Wright had no trouble tuning my car with these in place.

Hope this helps.

 

I have heard that the Bosch injectors tend to have a better spray pattern then the Lucas injectors.

The better spray pattern results in better part-throttle performance...at WOT the spray pattern in less of a factor.

The MSD injectors are supposed to be somewhere in between the Bosch and the Lucas' in terms of spray pattern atomization.

Scott

 

I'm with you on the spray pattern being the main difference I guess.

But I thought Delphi/GM was using Lucas injectors and that the 42# Lucas I'm looking at are Lucas/Dephi. Shouldn't they have a spray pattern closer to OEM?

Who makes our OEM's?

 

Different style injectors. SVO/Bosch(MSD/Holley/Accell) are pintle style injectors, while the Lucas injectors are a plate style. The biggest difference is inertia of the mechanism. The pintle injectors have a much higher inertia than the Lucas style injectors. This gives them a slower response time and can make them difficult to tune for idle with large injectors on a stockish car. The plate style injectors are also more stable approaching 100% duty cycle; most pintle injectors develop erratic pulse widths and the spray pattern deteriorates quickly as they approach 100% duty.
I am planning a bog dry shot, so the better possiblilty of tuning large injectors for idle on a mostly stock mill is a draw for me. If price is the same, get the lucas units

<small>[ June 10, 2002, 02:17 PM: Message edited by: Chris Spiess ]</small>

 

Chris Spiess:
Thx!

Who makes our stock injectors? Are they pintle or plate?

 

reviving an olds thread...but I have read they are rochester units. I could be wrong.

 

For the reasons that Chris pointed out the Lucas injectors are superior. I use flow matched 42.5# injectors...soon to be using 72# injectors though. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />