Triumph TR7 V8 installation

[jeffremj]

I have already fitted one to a TR7 16V as mentioned here:

http://www.autosportlabs.org/viewtopic.php?t=756

As I also had a TR7V8, how could I leave it out



The triggerwheel came from http://www.trigger-wheels.com/rv8 and I had the other brackets made to suit.

More info here: http://mjjfar.servehttp.com/triumph/TR8edis.htm

Lots of fun

Thanks again Brent! Where would we be without you ....

Mike.

[MartinM]

Excellent!

And I think you win the prize for "the most rigid and rustiest VR mounting bracket in the world"

[jeffremj]

Excellent!

And I think you win the prize for "the most rigid and rustiest VR mounting bracket in the world"

Thanks.

I should have painted it, but I am sure it will soon be covered in 'protective' oil. As you might have noticed, it does leak a bit!

[aarc240]

Excellent, that VR sensor bracket is a really good guide for other people on what they should be using.
In the pic of the VR bracket as installed, what are the black sections between the washers (block side of the bracket)?
Surely not rubber vibration dampers!!

[jeffremj]

Excellent, that VR sensor bracket is a really good guide for other people on what they should be using.
In the pic of the VR bracket as installed, what are the black sections between the washers (block side of the bracket)?
Surely not rubber vibration dampers!!

Nope, definitely not . They are spacers that came with one of the bolts. A stack of washers will do the job. Yep, the bracket is a simple bit of standard angle iron.

[brentp]

I was wondering the same thing with the black spacers! That is one sturdy bracket- nice installation too.

A v8 powered TR7 sounds like a ton of fun!

[jeffremj]

I was wondering the same thing with the black spacers! That is one sturdy bracket- nice installation too.

A v8 powered TR7 sounds like a ton of fun!

Look and 'hear' for yourself, the car pre-megajolt. Hopefully the new ignition will help out at the 5K+ rpm:

http://www.youtube.com/watch?v=abuC4ce0PMA

[jeffremj]

Can anyone analyse this log, is it good? Is rpm_accel = rpm change in one second? Car weighs around 3000lbs. Any idea of power and torque?

Time rpm vac adv rpmacel mph
36.6 1288 92 19 490 13.5
36.9 1469 94 21 512 15.4
37.1 1640 95 19 592 17.2
37.3 1795 96 19 617 18.8
37.6 1959 97 20 673 20.6
37.8 2118 97 21 671 22.2
38.9 2279 97 21 655 23.9
38.3 2353 98 22 579 24.7
38.6 2634 98 23 677 27.7
38.8 2810 98 24 688 29.5
39.9 2994 98 24 707 31.4
39.3 3190 98 25 741 33.5
39.6 3386 98 26 835 35.6
39.8 3568 98 27 744 37.5
40.9 3755 98 28 752 39.4
40.3 3942 98 30 752 41.4
40.6 4112 98 31 731 43.2
40.8 4282 98 32 718 45.0
41.9 4476 98 32 723 47.0
41.3 4665 98 33 725 49.0
41.6 4803 98 33 686 50.4
41.8 4970 96 33 688 52.2
42.9 5103 98 35 649 53.6
42.3 5298 98 35 654 55.6
42.6 5421 98 35 603 56.9
42.8 5590 98 35 635 58.7
43.1 5720 98 35 596 60.1
43.3 5880 98 35 623 61.7
43.6 6041 98 35 593 63.4
Time rpm load advance rpmacel mph

TIA,
Mike.

[jeffremj]

I finally put the car on the 'original' rolling road and can confirm that by only changing the ignition system I gained a 2.5% increase in torque - now 198lbft. The max power output was inconclusive due to my errors in timing.

[jeffremj]

I have re-done the timing and have uploaded it for posterity

Note the anti-stall and the rev-limit timing buckets.

[matnrach]

You can use the rev limit to retard the ignition to 0 degrees. It does the same thing as your map and saves an rpm site.

[jeffremj]

You can use the rev limit to retard the ignition to 0 degrees. It does the same thing as your map and saves an rpm site.

I want to keep my system as simple as possible and dismissed any rev limit add-ons. I also use my existing distributor (with a 1K resistor replacing the coil) to drive the rev counter. I can quickly 'rollback' to my old ignition system.

[matnrach]

There is no additional wiring, the rev 'limit' is in the calibration file. If you put in 6400rpm it will retard the ignition to 0degrees at 6300rpm.
Just try it , it works fine.

[jeffremj]

Is this feature implemented using the "Additional Configurable Outputs" rev limit option? Note that I have the 2nd generation hardware, rather than the latest version.

[matnrach]

In my onfiguration it is in the Options menu, thn Rev limit and this should work