SL 55 intakes fitted

[dredd32]

Ha ha very wise.

Depending on results you might want to buy your wife a new heat exchanger for her bday lol

 

[sjmaxwell]

Ha ha very wise.

Depending on results you might want to buy your wife a new heat exchanger for her bday lol

It'll all end in tears!! :bannana:

 

[Neil Mackay]

It'll all end in tears!! :bannana:

Or divorce......!!! Again! Lol

 

[Neil Mackay]

So.......good news??

 

[dredd32]

Nope not great news!!!

Only got an extra 8 hp on the dyno run but 40+ ft lbs of torque!!!:

Charlie says there's a problem with the gearbox which I had noticed over the last couple months...I read on a post here about flaring where the car seems to slip into neutral for a second before regaining power... So I've got to look into that next...Any info on what I should do next would be much appreciated....

 

[Neil Mackay]

What was the torque figure?

 

[dredd32]

Was approx 360 before intakes and 410 after

 

[Neil Mackay]

Was approx 360 before intakes and 410 after

I'll probably still do the mod just for that torque increase!!!!

 

[ant1]

So you have no before RR figures to compare the mod with?

 

[dredd32]

I had the car dyno'd there earlier in the yr and it ran 369hp with 365ftlbs torque. Today 378and 410torque.

Strangely when I took it to msl in June it ran371hp and 410torque before the new intake mod

 

[ant1]

Needs to be back to back really as the ambient temp this time if year will yield better results on its own. Putting that aside, engine breaths better which is only a good thing!

 

[Dieselman]

Wheel dynos are a complete waste of money and time, that can be made to say anything required.

As said, your gains are due to ambient temperatures and maybe the original result was low for some reason.

Buy a £5 stopwatch and test ALL mods before and after using a flat road and 3 acceleration runs in each direction.

I can't see the intake making much difference as it is unlikely to have been restrictive anyway and the throttle body is probably the most restrictive part...and that hasn't changed.

 

[dredd32]

Yes I'm very happy with the intakes and with the extra torque they've given me....

Now to sort out the other issues..Reading other posts I think it might be electro hydraulic plate and valve

 

[Dieselman]

Yes I'm very happy with the intakes and with the extra torque they've given me....

Maybe.

 

[dredd32]

Wheel dynos are a complete waste of money and time, that can be made to say anything required.

As said, your gains are due to ambient temperatures and maybe the original result was low for some reason.

Buy a £5 stopwatch and test ALL mods before and after using a flat road and 3 acceleration runs in each direction.

I can't see the intake making much difference as it is unlikely to have been restrictive anyway and the throttle body is probably the most restrictive part...and that hasn't changed.

Was only a matter of time before the stopwatch got mentioned

 

[Dieselman]

Was only a matter of time before the stopwatch got mentioned

And the problem with a stopwatch is?

ALL race teams use stopwatches.

As you obviously know more about tuning than me, what were the pressure drop readings on your old and new intake systems and where are the bottlenecks?

My guess says you haven't a clue.

 

[Dieselman]

Was only a matter of time before the stopwatch got mentioned

Well the dyno appears to have been a complete waste of money.

Was approx 360 before intakes and 410 after

I had the car dyno'd there earlier in the yr and it ran 369hp with 365ftlbs torque. Today 378and 410torque.

Strangely when I took it to msl in June it ran371hp and 410torque before the new intake mod

^ Something doesn't add up, here.

 

[dredd32]

And the problem with a stopwatch is?

ALL race teams use stopwatches.

As you obviously know more about tuning than me, what were the pressure drop readings on your old and new intake systems and where are the bottlenecks?

My guess says you haven't a clue.

No one said they know more about tuning than the great dieselman...I looked at the cfm of my intakes and it read 400 and 515 on the slk...I bought this item as I was told they would increase power which it has to a fashion.
The reason I try and avoid your posts is because of this. You stick to your stopwatch and I'll waste my money on dyno'd

 

[Dieselman]

No one said they know more about tuning than the great dieselman...I looked at the cfm of my intakes and it read 400 and 515 on the slk...I bought this item as I was told they would increase power which it has to a fashion.
The reason I try and avoid your posts is because of this. You stick to your stopwatch and I'll waste my money on dyno'd

It appears you have indeed wasted your money as the results are far from conclusive.

You say it has increased the power, has it? It's not even clear it has increased the torque.

If the original intake system wasn't causing a pressure drop, you didn't need a free-er flowing one.

A stopwatch will tell you all you need to know and is repeatable. Your dyno readings highlight that they are not repeatable. Why do you have such trouble understanding that?

 

[SavMan]

Use a stopwatch on the dyno, surface is consistent and you wont lose your licence