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LC Engine Options

Started by Lc69 , Mar 28 2016 07:21 PM

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145 replies to this topic

#76 _Bomber Watson_

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Posted 01 April 2016 - 09:06 PM

The modified blue manifold is pretty good as far as a single carb goes - up to a point. Very good distribution, torquey, very good mileage. But beyond that point - and if we're talking 250 or so at 0.050" we've gone past it - you'll be a long way behind triples.

I thought it was way past it to but Im frOcking certain I drunkenly read about you running that setup with that kinda duration.

My dearest apologies.

Thanks mate, gold.

I'm thinking around 8k, but i have time on my side.
I'd rather do it right the first time.

I actually like the idea of the Webbers.
Lets face it, they look impressive compared to a Holley.

They look and sound awesome.

IMO there to much money and to much work for what they give. Particularly compared to 1 3/4" SU's on a 9 port head or 2" SU's on a 12 port head for the kind of engine your considering.

But, I digress, I fully agree they look and sound awesome.

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#77 Lc69

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Posted 01 April 2016 - 09:08 PM

Thank Oldjohnno, I've been reading your guide.

Any reason blue over black when picking a starting point?

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#78 _Bomber Watson_

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Posted 01 April 2016 - 09:10 PM

IMO easyer to come by, you will find 50 blue motors for each black motor.

Someone else may have a better idea.

Just from running the Ultra sonic tester over my collection, the blue motors seem to be a lot thicker in general on the thrust side than reds, which tend to be all over the place, so definitely a better starting point.

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#79 Lc69

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Posted 01 April 2016 - 09:17 PM

Ok, good to know

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#80 _oldjohnno_

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Posted 01 April 2016 - 09:27 PM

I thought it was way past it to but Im frOcking certain I drunkenly read about you running that setup with that kinda duration.

I've run all sorts of things that weren't such a good idea...

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#81 _oldjohnno_

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Posted 01 April 2016 - 09:33 PM

Thank Oldjohnno, I've been reading your guide.

That was written years ago, and hasn't been updated in ages. There's a fair bit of stuff in there that isn't really accurate and really should be brought up to date. I guess what I'm trying to say is don't take it as gospel, though I think some of it could still be useful as a general guide. I think the last two pages are the most useful for most people.

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#82 SA EH

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Posted 01 April 2016 - 09:34 PM

And lets not get into an su's or weber's debate again, we all know su's make the same power for a fraction of the cost.

Go the weber carbs if the budget permits.

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#83 Ice

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Posted 01 April 2016 - 09:48 PM

How would you like a fully recond and detailed set of triple 1.75 original strombergs on original holden manifold all fully restored
better than new
they go well if set up right to
let me know if your keen on them

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#84 Lc69

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Posted 01 April 2016 - 09:56 PM

And lets not get into an su's or weber's debate again, we all know su's make the same power for a fraction of the cost.
Go the weber carbs if the budget permits.

If I'm going with a 12port head, i'm assuming Webbers work out better when sourcing manifolds?

I haven't done much research on the triples.

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#85 Ice

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Posted 01 April 2016 - 10:00 PM

If I'm going with a 12port head, i'm assuming Webbers work out better when sourcing manifolds?
I haven't done much research on the triples.

Your gunna need more money than 8 K

Just sayin

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#86 Lc69

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Posted 01 April 2016 - 10:37 PM

Your gunna need more money than 8 K Just sayin

Once I have a few ideas about components I can start to look at the budget.
Worst can we can pretend the budget was in US dollars or that it was a short block budget.

I'm in no rush, so let's call the budget a guide more than a fixed investment.

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#87 Lc69

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Posted 01 April 2016 - 10:40 PM

I'm not against the idea on SU's but a 12 port build looks like the way to go.

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#88 _Bomber Watson_

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Posted 01 April 2016 - 10:42 PM

Thats the way.

8k is certainly not a bad budget, stick to tried and true gear, the money is in the head and carbs, the rest is not to bad. If your only chasing 220-230hp I recon you will shit it in without breaking the bank.

Something Im not sure If I mentioned or not, your definitely not going to want to stick to the stock auto, if you wish to stay auto then you will need a converter and atleast a bit of trickery inside it. By the time you spend this money you may as well put a manual in in the first place.

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#89 Lc69

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Posted 01 April 2016 - 10:52 PM

Thats the way.

8k is certainly not a bad budget, stick to tried and true gear, the money is in the head and carbs, the rest is not to bad. If your only chasing 220-230hp I recon you will shit it in without breaking the bank.

Something Im not sure If I mentioned or not, your definitely not going to want to stick to the stock auto, if you wish to stay auto then you will need a converter and atleast a bit of trickery inside it. By the time you spend this money you may as well put a manual in in the first place.

Yeah had this in the back of my mind.
The auto is looking reasonably fresh, recently refurbished.
The long range plan is manual, but maybe I could get away with a converter for a bit?
I'm keeping my eyes out for gearboxes in my spare time.

I may well find a motor and box as a combo.

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#90 _Bomber Watson_

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Posted 01 April 2016 - 10:54 PM

By the time you spend $800 on a converter........

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#91 Lc69

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Posted 01 April 2016 - 11:07 PM

Hmmm, I see. May as well do everything at once then.

Currently a short motor for sale on gumtree:

http://www.gumtree.c...otor/1108102878

I'm in no rush, but wouldn't want to walk past any opportunities.

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#92 _Bomber Watson_

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Posted 01 April 2016 - 11:11 PM

I would stay the frOck away from that.

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#93 Lc69

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Posted 01 April 2016 - 11:21 PM

I would stay the frOck away from that.

Lol, ok.

I'll stick to finding a suitable combo for a rebuild.

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#94 SA EH

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Posted 01 April 2016 - 11:36 PM

I would stay the frOck away from that.

Hey hey hey, look at the name on that add. Ian Moodie.

Now im not saying the engine is what you need but i'd say it wont be shit....

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#95 _Bomber Watson_

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Posted 02 April 2016 - 12:02 AM

Fair enough.... But really, Bathurst rods?

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#96 _oldjohnno_

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Posted 02 April 2016 - 07:54 AM

I'm not against the idea on SU's but a 12 port build looks like the way to go.

I really like the 12 ports too but the 9 ports have some significant advantages. Main one being that to make the most out of a 12 port you need individual runners and throats, so you don't have many off-the-shelf options besides Webers with their shitful cost-to-performance ratio. With a 9 port you can run an off-the-shelf SU manifold with whatever single throat side-drafts that you want.

I'd be seriously considering spending the money saved by not running Webers on a set of lightweight pistons and rods.

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#97 Lc69

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Posted 02 April 2016 - 08:39 AM

So are you suggesting another option would be to modify a blue short motor to fit a red head, or try and find a red 202 complete.
Would it be better to buy a complete head, like Yella-Terra, or try and find a red head for work.
Could I use the 161H head I have now maybe?

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#98 SA EH

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Posted 02 April 2016 - 09:29 AM

161 high comp head on a blue/black bottom end, perfect.

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#99 _STRAIGHTLINEMICK_

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Posted 02 April 2016 - 11:46 AM

I can supply it as a kit for u to assemble using proven combinations. Im down in sydney and can frieght it to you in qld
I also have a brand new yes brand new complete yella terra casting 12 port iron head for sale if yr interested.

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#100 Lc69

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Posted 02 April 2016 - 11:59 AM

Thanks Mick, will keep that in mind.

I'm not sure how adventurous I want to be.
If I had a short block and assembled head I could easy bolt it together.
Full assembly.... I would need to watch some YouTube and borrow some experience.
But time is probably a bigger problem at the moment.

Proven combo is what I'm looking for.
Once I have a plan of which way I'm going I'll be in touch.