3428TM Build Log

[Slow M]

That's the car! Actually, I recognized it because you'd mentioned it laying rubber in the first three gears. My elder brother's 427 Camaro* was such a machine, also, so the info stuck. They do go on about that in the article. I should hold on to the mag for you, or send it to you.

Best,
B.

• 7000 plus redline, 13.5:1, race cam, 5mpg, Munzie rock crusher, 4.11 rear wheelstanding monster in primer black.

Edited by Slow M on Tuesday 28th August 17:00

[Slow M]

ivanhoew said:

if you could hold on to it that would be another incentive to come down and see you,apart from the chance to go in your tvr of course !!!

I'll have to work a lot harder, and make more rapid progress.

[Slow M]

Entrails 1



Entrails 2

[Slow M]

ivanhoew said:

oh i say !!!hold on chap!!i was just having my breakfast !!!!

GTRene said:

oh my...that are a lot of cables.

Sorry gents, didn't mean to post those without nausea disclaimers.

Best,
B.

[Slow M]

my250gt said:

Hi SlowM, what body mods are you contemplating to cover that wide rubber? Are you going to fabricate to suit the tyre or have you got some arches sorted already?

I am thinking SE arches. On the back the addition of a "fence" should help abate lift, and at the front, i may extend the leading edge of the nose, and radius it, slightly, to add downforce. A splitter will help as well. Also, venturi under the tank are a thought.

Best,
B.

[Slow M]

Made a couple of varaiants of the dry sump pump bracket. Early one shown below.


Axles and driveshaft arrived, but axles had wrong CV boots installed.


A few emails later ...


Will attempt to install this weekend.

Best,
B.

[Slow M]

Tried wrestling the axles into the uprights that were their intended home. Outer CVs were discussed to be 100mm at the widest point. they ended up at 104.5mm, and so they've crossed the USA once again.

While I'm not happy about all of the additional work on my part, I'm impressed that there are people who don't try to wash their hands of a losing proposition.

Best,
B.

[Slow M]

Rumour has it, third time's a charm. Trying again this weekend.

Best,
B.

[Slow M]

Axles are in.
Rear suspension is back together.

Next, I'll have to bolt together as much as I can. I move to California before the end of the month.

Best,
B.

[Slow M]

Don't fret, Gregg's become the RO for the TVR club, I imagine he should be able to drum up something for distinguished visitors to see. Jarred Swalwell's also been working on his M.

Any plans to visit California?

Best,
B.

Edited by Slow M on Saturday 8th December 03:24

[Slow M]

I askked my brother run the Engine Analyser software on my combination with less than ideal header lengths. I estimated that I could have 18" primaries, if they turn down to a collector. He found that the result is a loss of over 40HP, and an erratic power curve. As I have to sharpen my CAD skills anyway, I designed a custom header flange for the AFR heads, and drew it up.

Best,
B.

[Slow M]

Grantura MKI said:

I have a contact that can help if required?

D,

Thank you; I'd be grateful for any contact information, but unfortunately, anything that absorbs funds* is off limits to me, until I manage to find work.

* Aside, perhaps, from a TVRCCNA membership.

Best,
B.

[Slow M]

Hi R,

I hope you're well.

We played around with PipeMax, and with Engine Analyzer. They both agreed that the diameter should be 1 3/4" (PM allowing as little as 1 5/8"). PM called for primary lengths to be 27.2" to 29.8", while EA made them 28"-30". I can make that happen, if I go with a system like this.


The next harmonic down is at roughly 19". Will get Oliver to run the numbers again at that length, when he has a chance. Will let you know what the drop is at that length. I might be able to make that happen by routing the primaries down and back, and placing the merge collectors left and right of the bellhousing. Later on, when I feel like a glutton for punishment, I can try the long way 'round.

Best,
B.

[Slow M]

R,

Good call! Looks like there'll be no need to add even more mass, heat, and complexity. 19" will do just fine.

Best,
B.

[Slow M]

To be honest, I don't even know where this stuff is supposed to fit. I hope not to have to be doing the forward facing "bundle of snakes," but I also can't imagine how there will be enough space if I try to route the pipes down, on the right side of the motor. There are oil pipes, starter, and dry sump pump that also share the space, not to mention engine mounts.

I need a sonic srewdriver.

Best,
B.

[Slow M]

Wow! Thanks; there are some great thoughts there. I know that Honda played with using different harmonics on different cylinders on their late 60s Formula One V12. As I recall, they had longer intakes on the middle four cylinders, so I'm sure they used the exhausts to that end as well.

Oddly, diameter does not seem to matter, as far as the harmonic length is concerned, at least as far as PipeMax is concerned. It gives an approximate range of volumes.
"ID = 1.481" to 1.606 Length= 27.2 to 29.8 inches long." Even with a stepped header, it still arrives at the same range of lengths (placing the steps equidistant along the primary tube/pipe). That allows for a range of primary pipe volume from just under 47CI to over 60CI. ... ... ...

So, I suppose, the next trick would be to still have sequenced pulses rotating around the collector in some sort of regular pattern.

Thanks lots, gents!

Best,
B.

[Slow M]

D,

No problem. A speedy recovery to your machine.

I was thinking of going to Cars & Coffee in Irvine, this Saturday. Do you ever attend that weekly event?

Best,
B.

[Slow M]

I'm in Gardena, right now, and Irvine's about a 40 minute drive, from here. In about ten days, I'll be moving to Culver-West, so I thought I'd take advantage of the relative proximity, and see what the designers are bragging about.

Best,
B.

[Slow M]

Hi D,

I had heard that the SoCal designers sometimes bring their own rides, as well as projects to Irvine Cars & Coffee. These days, I'm less interested in looking at the studios themselves. (especially after just looking at the Benz site, and seeing their F700 concept. Goodness, people, I'm having breakfast. Have the decency to post a warning, will you?

I like that they preemptively show the car on the bottom of the ocean, though.

Right, Culver-West is between Marina Del Rey and Culver City. It's an additional half hour North from Gardena, That puts it approximately two hours North of Fallbrook. Of course, as the local saying goes, "traffic dependent."

Best,
B.

[Slow M]

If it's good enough for ivanhoew, It's good enough for me.
:~) Hi Robert.
At least for the time being, I'll get it running with its innards poking through the hood, a bit. Later, I'll see what I can do, by using a forward facing intake elbow. Don't know if it'll clear the distributor, until I get that mounted. I do believe there are caps with side terminals, or I may go with a crank trigger ignition system.





Best,
B.