E34 4.0 dyno day

[Entas]

So I got my 4.0 swapped 530 on the dyno this morning and it made a pretty disappointing 219hp and 235tq, are these numbers normal for stock, where should I start to look to get some more power out of the old girl? It has a dinan chipped ecu but that’s all I know about the tune as I did not buy it

[NikosX]

Were going to need to know what kind of dyno it was, what mods the car has and what transmission it is.


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[prash]

[Entas]

The dyno was a dyno jet, ac delete, clutch fan delete, no emission controls, cat and muffler delete, the exhaust is 2-1/4”, trans is the 530 5speed

[NikosX]

The dyno was a dyno jet, ac delete, clutch fan delete, no emission controls, cat and muffler delete, the exhaust is 2-1/4”, trans is the 530 5speed

Which ECU?


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[Entas]

404

[401michael]

So I got my 4.0 swapped 530 on the dyno this morning and it made a pretty disappointing 219hp and 235tq, are these numbers normal for stock, where should I start to look to get some more power out of the old girl? It has a dinan chipped ecu but that’s all I know about the tune as I did not buy it

do a static compression test see if you have any dead cylinders? just a thought. how does it idle?

[Entas]

Idles pretty steady at about 600, and I’ll get around to doing a compression test sometime today and post the results

[NikosX]

404

Is the tune for the 530 or the 540?


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[Entas]

540

[Entas]

Comp test(psi)
#1-150
#2-160
#3-160
#4-165
#5-155
#6-145
#7-155
#8-0
Looks like I’ve got a dead one🤔

- - - Updated - - -

The engine and ecu came out of @atl530i’ sterling silver 540

[NikosX]

Comp test(psi)
#1-150
#2-160
#3-160
#4-165
#5-155
#6-145
#7-155
#8-0
Looks like I’ve got a dead one

- - - Updated - - -

The engine and ecu came out of @atl530i’ sterling silver 540

Oh no. That’s not good. Sorry to hear man.


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[prash]

Shoot. GL man.

[M540fella]

Comp test(psi)
#1-150
#2-160
#3-160
#4-165
#5-155
#6-145
#7-155
#8-0
Looks like I’ve got a dead one

- - - Updated - - -

The engine and ecu came out of @atl530i’ sterling silver 540

Umm he did say the previous owner money shifted that motor. That's why he swapped it out :facepalm

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[401michael]

Comp test(psi)
#1-150
#2-160
#3-160
#4-165
#5-155
#6-145
#7-155
#8-0
Looks like I’ve got a dead one樂

- - - Updated - - -

The engine and ecu came out of @atl530i’ sterling silver 540

if youre m60 savvy just pull the head and check the cylinder wall. if its clean with no scoring just change the rings on that one piston. obviously some labor but cheaper than a new motor. hopefully nothing is wrong with it.

[Entas]

It’s the one that ended up in the car when he was finished, the the quarter panel got backed into and it was parted out

- - - Updated - - -

^ M540fella

[4dri4n]

And it still made 220 hp. Awesome.

[nonturbodan]

Would have been 250 with all 8 hitting which is about average.

If you have to do it again, go 4.4.

[Red Shirt KRT]

220 hp

“540 the m5 killer”. XD

Dang yea if it’s toast go for the m62

[NikosX]

if youre m60 savvy just pull the head and check the cylinder wall. if its clean with no scoring just change the rings on that one piston. obviously some labor but cheaper than a new motor. hopefully nothing is wrong with it.

That’s way more work than swapping out a b40. And b40s are available everywhere for as little as $300.


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[401michael]

That’s way more work than swapping out a b40. And b40s are available everywhere for as little as $300.


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Yeah its a little bit of work lol.

[moroza]

You have one dead and seven weak ones. Time for an M62.