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RE: Ford injectors (& Question)



I know somone that did.....needed a new hood after it blew of the
intake,..and 4 rods on left side :-)

Better to run it as a custom made plate between the trottle body and
plenum...you can then also put in two p&h injectors to give it the add
fuel..
Mike Rolica
Plant A,
Magnesium Products Division
Strathroy

(519)-245-4040  Ext. 244



	-----Original Message-----
	From:	Dave Zug [SMTP:dzug@delanet.com]
	Sent:	Friday, August 18, 2000 3:23 AM
	To:	gmecm@diy-efi.org
	Subject:	Re: Ford injectors (& Question)

	I have a few notations and a question after reading this thread.

	I have a set of 28# stock GN injectors if anyone wants them. $35 +
shipping.
	I bought them off ebay, no guarantees but the guy said they were 80k
miles
	and good.

	The SVO's I DO have, but not installed in the 383 yet. I knew they
were
	rated at less pressure than the GM's but now I know 39 psi is the
test
	pressure.. Thanks.

	A friend has SVO's in his ZZ4/HotCam TPI... one clicked and he
replaced it..
	no more clicks. He may pipe in to revise or extend my remarks..

	My stock L98 injectors in the TPI 383  run 11+ ms w/ 48 psi fuel
pressure at
	idle, vac off. (just notes for comparison)


	To the question... at 6000 RPM, it is 20 ms, not 10ms between the
time an
	intake valve begins to open until THAT intake valve begins to open
again.
	(100 crank rotations every second = 50 cam rotations = 50 valve
cycles, but
	you know that) Specifically for the driver configuration on the 730
and 165,
	someone please tell me why 10 ms is considered static. Is it that a
driver
	is toggling between 2 banks of injectors and is only able to fire
any one
	bank for 10 ms?  I'm sorry to NOT have this clear in my mind after
years of
	twiddling and reading.. but I'd like it clarified one more time
please and
	thanks.

	PS anyone ever used the pre-88 TPI cold start injector passage for
NOS?


	----- Original Message -----
	From: Roger Heflin <rah@horizon.hit.net>
	To: <gmecm@diy-efi.org>
	Sent: Thursday, August 17, 2000 5:34 PM
	Subject: Re: Ford injectors


	> On mine I swapped 22lb GM (93 f-body LT1) out for 30lb ford svo
	> injectors mainly because I was concerned about not having enough
fuel,
	> and according to the kind of pulsewidths I was running on the 30lb
	> injectors (7.3ms) I would have required 9.9ms (at 6000rpm-well
past
	> lockup of around 9ms) and would not have had enough fuel.  I may
also
	> have been a bit on the lean side at 7.3ms on the 30lb injectors.


	
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