Maserati Larini Sports Rear boxes system 4200 - all mod

lozcb

lozcb

Member
Messages
12,586
Elliott said:
Well, the Larinis have been despatched by the seller and should arrive at my friend's garage this afternoon. With a fair wind, I may be able to fit them in time for Saturday and Brize Norton.
Click to expand...


A grand entrance to be heard then elliot haha



regards loz
 
Parisien

Parisien

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34,927
Xmas is early.........can see the grin already..........enjoy.........ear defenders at the ready......Larini supply them witha Maserati logo on each ear piece.....;)


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Elliott653

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1,241
Fitted .they sound excellent. But I have an issue with cabin boom at between 2500 and 3000 rpm. Is that just a characteristic of the boxes or is there some way to "tune" them?
 
Parisien

Parisien

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Not sure, I know you have to be rev concious with the set I got on.....they do like the higher revs though....:)




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BennyD

BennyD

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15,006
Elliott said:
Fitted .they sound excellent. But I have an issue with cabin boom at between 2500 and 3000 rpm. Is that just a characteristic of the boxes or is there some way to "tune" them?
Click to expand...

Elliot, just keep the revs above 5,000 and it's not an issue anymore.
 
DaveT

DaveT

Member
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2,831
Elliott said:
Fitted .they sound excellent. But I have an issue with cabin boom at between 2500 and 3000 rpm. Is that just a characteristic of the boxes or is there some way to "tune" them?
Click to expand...

Thats exactly what I have as well Elliott.

You just have to get used to it and be a bit clever to keep it either side of that revrange to limit the boom.

Enjoy!
 
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Parisien

Parisien

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Dave...don't worry you soon learn.......plus dropping the window 1 1/2 an inch helps too....:)


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Gtramos

New Member
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11
I don't hear any boom since I put the larini connection pipes... With the original pipes it was impossible to drive in 3.000 / 3.500 rpm.

Regards
 
BennyD

BennyD

Sea Urchin Pate
Messages
15,006
As far as I can tell the link pipes go between the end of the H or X pipes and the start of the rear box pipes. BTW, I think the boom is a characteristic of the engine rather than any particular exhaust combination but the exhaust can enhance the fact it is there.
 
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Gtramos

New Member
Messages
11
The difference is huge! Pushing the car the sound is the same, loud enough for me :)! But driving slowly it is much more quiet. I assume that the difference is in the connection pipes. Although I've changed the larini non-valved for the valved ones, the boxes are the same.
 
Parisien

Parisien

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34,927
Nope.......am UM like in the beast sometimes.............other times.....a bit like Benny.......;)


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Elliott653

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Messages
1,241
I've had a word with Larini. Dave, the chap I spoke to was really helpful. Even though I had told him that I had bought them second hand. His first suggestion is that one or both of the cats had blown and that I should get them checked. As they can cause a resonance problem.

I'm having a couple of tyres fitted today, I'll get the cats checked at the same time.

He also mentioned that as the wadding is thermal activated, I need to put 500 miles on the car. This should help. So, I'm moving forward. Slowly. Knowing me, I'll probably end up with a whole Larini system.

:)
 
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