"Plot" from 3.5

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NorthernBloke
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"Plot" from 3.5

Post by NorthernBloke » Tue Jan 29, 2013 9:33 pm

I finally, after 7 months, got round to taking the car back for final setup, jets and metering rods etc. and I'm very happy with the results.

The car's not running massive power, as you'd expect from a n/a 3.5, but it's pulling over 195lbft from 2,300rpm to 5,300rpm and with the rebuilt and regeared diff (full interleved LSD and CWP to 3.77:1 from 3.09:1) it's woken the car up :D

The "plot" shows the figures from the initial setup runs from May - Run 1 and the final setup from Dec - Run 2.

I'd be interested in your thoughts

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Post by Darkspeed » Wed Jan 30, 2013 7:24 pm

Still increasing at 5500 - where did it stop?
4.5L V8 Ginetta G27

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Post by NorthernBloke » Wed Jan 30, 2013 8:52 pm

That's as far as we took it - we'll see where it stops when I go back for just a full power run :)
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Post by poo slinger » Wed Jan 30, 2013 11:13 pm

i am just changing from a 3.89 diff to a 3.09

although i got 13" wheels. hoping its going to change the way the car drives at speeds.

does any1 know of a rolling road that stocks parts for edelbrock 500 carbs?

i am in south lincolnshire / norfolk.

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Post by NorthernBloke » Thu Jan 31, 2013 7:03 pm

I had to supply the calibration kit for the carb as it's not a model the rolling road I went to deal with often - they're more used to twin 40s / 45s
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Post by poo slinger » Thu Jan 31, 2013 8:33 pm

calibration kit? i think my jets aren't right.

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Post by NorthernBloke » Fri Feb 01, 2013 10:04 pm

It's a kit which from Edelbrock which contains the jets, metering rods, springs etc. for the specific model of carb so the tuner can try the various combinations. Rich, who did mine down at Motoscope went through about 3 combinations before he was happy.

http://store.edelbrock.com/calibrationk ... carbs.aspx
Andy

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Post by poo slinger » Fri Feb 01, 2013 10:19 pm

thank you very much, these got everything i need?

they available from the uk?

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Post by NorthernBloke » Sun Feb 03, 2013 9:49 am

Yep, should have mate - you can get em here

http://www.v8tuner.co.uk/product.php?id=105
Andy

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Post by kiwicar » Sun Mar 03, 2013 9:36 pm

Hi
That is a nice healthy power curve you must he very pleased. With the fueling sorted it is a really nice smothe curve, in a light car like the escort it must fly :D .
Very nice
Mike
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Post by NorthernBloke » Sun Mar 03, 2013 9:52 pm

I am very pleased, a proper progressive curve :)

It does go pretty well 8)
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Post by kiwicar » Mon Mar 04, 2013 11:59 am

Hi
It would be interesting to see what happened with a bit more exhaust duration (say 8-10 degrees) and a slightly wider LSA on the cam, say another 4 degrees, I am assuming you have tubular headers and a ballance pipe. Just I think that would give you about 300-400 more revs before the torque curve started to roll off and make it roll off more slowley, it would just widen out the power curve without loosing anything off the bottom end of the curve.
Sorry at it again with the what ifs. There really is no need it looks pretty well spot on.
Best regards
Mike
poppet valves rule!

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Post by NorthernBloke » Mon Mar 04, 2013 7:27 pm

Hi Mike

It is running tubular manifolds but, at the moment, it's 4 into 1 each side with no balance pipe. I do have an X pipe to go in at some point, when I get time, and this should give a little more torque :) I'm hoping to have it done before a rolling road session I'm going to in April but we shall see.

Andy
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Post by kiwicar » Tue Mar 05, 2013 9:20 am

Hi
I think when you add the X/ballance pipe you will see a further small gain across the whole range, I wouldn't do anything drastic for now, just small developments on the theme you have followed so far.
Best regards
Mike
poppet valves rule!

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Post by NorthernBloke » Mon May 06, 2013 10:34 am

I had the car back on Sauturday just to re-check as I'd fitted new fuel pump, regulator and filter and it topped out at 204bhp but we were having a little bit of clutch slip so it is probably slightly more - in any case the torque is available immediately so the car pulls away quite well :)
Andy

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