I talked to a guy a while back who bragged about blowing up 3 motors on
nitrous but this time he swore he had it set up right. Never heard if he
did or not.
I don't remember which oil pump mod you are talking about, but I'm only
aware of one so I'll guess that it is the same one. I think the largest
benefit of it is that it lowers pump cavitation up in the 6-7k RPM range.
James Nazarian
71 MGB Tourer
71 MGBGT V8
85 Dodge Ram
----- Original Message -----
From: "Larry Colen" <lrcar@red4est.com>
To: <mgs@autox.team.net>; <hans@hi-flow.com>
Sent: Friday, June 13, 2003 4:07 PM
Subject: Postmortem followup
> I took the block to Gary, my machinist, and the cylinder bores were
> not unduly trashed. I'll be able to stay with .040 over. Gary will
> hone the bores, clean and check everything including the cylinder
> head. Gary also reccomended that I stick with Venolia pistons, as they
> seem to be the most popular brand among other folks who hotrod MGs. I
> asked him about Mahle, he said that they were very expensive and
> primarily used by the BMW and Porsche folks.
>
> One friend did reccomend bead blasting the top of the piston and
> the combustion chamber to make sure that there were no sharp edges. I
> wonder if Venolia would "radius" the corner where they dish out the
> piston, and if that would be worth the bother.
>
> I took the crankd to Armando Ayala (Custom Crank Repair) on Broadway
> in Redwood City. He was reccomended by the machine shop that Dema
> Elgin used to own, and everyone I've talked to who knew about him has
> said good things. Gary's comment was "I've heard nothing but good
> about him". He checked my crank. No serious cracks, though there were
> some signs of heat checking. He's going to clean it up, heat treat it,
> grind it .030 under (it's now .020) and radius the corners. He says
> that there is no strength problem going .030 under. For what it's
> worth, this will run me $425.
>
> When Armando saw the bearings, his comment was "What did you do to
> pound them like that? Nitrous?" Note to self, if that is a competent
> machinists expectation of nitrous, don't use nitrous.
>
> There is an interesting thread going on about hi flow oil pumps at:
>
http://www2.mgcars.org.uk/cgi-bin/gen5?runprog=mgbbs&mode=thread&access=4174
8614900012&subject=71&source=T&thread=2003061105440329544
>
> My understanding of high flow oil pumps is that if my oil pressure
> guage reads that the oil pressure is at the value that the relief
> valve is dumping, then more flow won't do me any good as it just gets
> dumped out the relief valve. On the other hand, if I'm not running at
> the limit of the valve, then more flow is a good thing, if for no
> other reason than it keeps the oil next to the bearings cooler.
>
> So, Jasmine's going to be off the road for at least a month while I'm
> waiting for pistons, crank etc. In the meantime, I'm looking for a
> Miata as an interim daily driver, eventually to turn into a Spec Miata
> so I can have something to race that won't be quite such a bother if
> it got rolled up into a little ball. I checked out one Miata last
> night that seemed like a pretty clean '91 base model, that I could
> have gotten for $2100. Unfortnately it didn't have several things I'd
> like (hardtop, Limited Slip, alloy wheels, roll bar/cage) and wouldn't
> be available for another week anyways.
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