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Classic Thunder Build - Duracel79 - England

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Peter V.
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Re: Classic Thunder Build - Duracel79 - England

Post by Peter V. »

NIce upgrades again.

We are going to see the car next week i hope?


Gr Peter V.

.Some say he eats nuts and bolts for breakfast, all we know is he is called the carburetorman.

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Nick1984
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Re: Classic Thunder Build - Duracel79 - England

Post by Nick1984 »

big jumps foreward! :thumbsup
[img]https://i.imgur.com/NwLeGXT.jpg[/img]

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Duracel79
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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

Peter V. wrote:NIce upgrades again.

We are going to see the car next week i hope?
Oh yes that's what I've been working towards :thumbsup
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

Thanks for the kind comments guys.

Headline figures from yesterday:

Power: 371 bhp (308.7 bhp @ wheels )
Torque: 383.9 Nm ( 283.1 ftlb )

I'll post a dyno trace later today, you'll see the lovely smooth power delivery its got now.

Very pleased with that, 4 years ago it made 329bhp and 263ftlb with the restrictive exhaust. Was hoping for 355 but got more :D

Cheers

Ben
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Mihajlo
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Re: Classic Thunder Build - Duracel79 - England

Post by Mihajlo »

is it safe to have that much rwhp without any assistance?

how is it like to drive when wet?
Understeer is when you hit the wall with the front of the car. Oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

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Duracel79
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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

Mihajlo wrote:is it safe to have that much rwhp without any assistance?

how is it like to drive when wet?
Safe depends how heavy your foot is or how controlled your foot can be.

As for driving in the wet, no real difference to any other E21 on road tyres, you can only drive to the grip available, the LSD makes more of an issue in heavy rain than the power.

Car is really built for the track where slicks and racing wets will be used, won't be any issues there :wink:

Ben
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

Image
Last edited by Duracel79 on Tue May 01, 2018 8:03 pm, edited 1 time in total.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Re: Classic Thunder Build - Duracel79 - England

Post by uwbuurman »

Nice and flat, no strange dips or peaks! All nice and lineair and impressive!
Last edited by uwbuurman on Tue May 17, 2016 9:29 pm, edited 1 time in total.
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1978 BMW 323i
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BertjeConti
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Re: Classic Thunder Build - Duracel79 - England

Post by BertjeConti »

Very very very impressive build :thumbsup
Image Megasquirted '77 E12 520-6

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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

uwbuurman wrote:Nice and flat, no strange dips or peaks! All nice and lineair and impressive!
Exactly, should be nice and controllable with the delivery. He did a lot of work on the vanos control and the fuelling to get all the gains (raise any dips) on full throttle.
He also spent lots of time on part throttle settings as well so it should be controllable/responsive at any throttle position on the road.

I'm very impressed with 114bhp/litre from this bog standard engine.

Maybe in a few years I'll look into cams and compression but for now its enough :mrgreen:
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Re: Classic Thunder Build - Duracel79 - England

Post by Duracel79 »

BertjeConti wrote:Very very very impressive build :thumbsup
Thanks Bert,

I'm impressed with your electrical knowledge and skills building your megasquirt'd setup on you 520.
Would be interesting to see how much more could be gained (if any) with a proper Mapping session on a rolling road.

Does the MSquirt have a logging facility so after driving you can download the data and interrogate it? AFR's and temps etc?
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)

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Re: Classic Thunder Build - Duracel79 - England

Post by BertjeConti »

Hello Ben,

Thanks, MS3 has logging facilities on board (sd card), MS2 (which i'm running) does not. I need to hook up the laptop or smartprhone (bluetooth) for logging.
All the parameters you could think of will be logged, and there is a real nice app for viewing the logs, called "megaview"

The logging facility is really awesome, after a run you'll be able to see all that has happened, also nice tool to clock 0-60mph runs.

I think i haven't gained any power with this setup because my engine is a little tired, it has run 200K now without any overhaul. So defently need a fresh engine soon.
Drivability however has increased dramaticly against the old carb and dizzy setup.
Image Megasquirted '77 E12 520-6

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BertjeConti
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Re: Classic Thunder Build - Duracel79 - England

Post by BertjeConti »

Impressive race car you've put together.
Saw your beast at the SM IRL today. Nice color sceme also.


Really nice build you have. Don't wreck it at a trackday. For shure a car to have a lot of fun with.

Did the dyno run at the SM today match earlier runs?
Image Megasquirted '77 E12 520-6

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Re: Classic Thunder Build - Duracel79 - England

Post by uwbuurman »

Wonderful, great! Superb!!! Live the colour!
It's the man next door!

1978 BMW 323i
1980 BMW 528i
1987 BMW 325iA cabriolet
2006 BMW 320d touring High Executive
2015 BMW 320dA touring xDrive High Executive ///Msport

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Re: Classic Thunder Build - Duracel79 - England

Post by Mihajlo »

pic in color or I'm leaving :D
Understeer is when you hit the wall with the front of the car. Oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

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