GS and 4200 air intake

rossyl

rossyl

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Reviving an old thread as I had not read into this issue before...

Loz commented on this previous here (post 32 in particular) http://www.maseratilife.com/forums/coupe-spyder-gs/8881-spyder-went-kaput-farewell-3.html

Trofeo part numbers: http://www.maseratilife.com/forums/coupe-spyder-gs/10516-maserati-trofeo-parts.html

But can't see an easy solution. From all the reading I've done the only solution appears to be drilling holes in the plastic box housing the air intake, which is not a definite solution.
 
Fossy

Fossy

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Whatever happens, i,m modding my intake to be more along the lines of the Trofeo as pictured in the link, as I went through a flooded section on the A127 near me only the other day and now I cannot get this out of my head.
£20,000 for a new engine, or move the filter upwards out of harms way, and you can still have a cold air duct , just leave the standard filter box in-situ with filter removed, and a short section on inlet pipe aiming at the new cone filter, but no risk of sucking water from the intake point ?
I,d even say that mere driving in the rain is enough to soak the standard filter element throughout the term of your journey which is still drawing water into the engine, and a soaked element is like driving with the choke full on !!!
 
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Emtee

Emtee

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Fossy said:
Whatever happens, i,m modding my intake to be more along the lines of the Trofeo as pictured in the link, as I went through a flooded section on the A127 near me only the other day and now I cannot get this out of my head.
£20,000 for a new engine, or move the filter upwards out of harms way, and you can still have a cold air duct , just leave the standard filter box in-situ with filter removed, and a short section on inlet pipe aiming at the new cone filter, but no risk of sucking water from the intake point ?
I,d even say that mere driving in the rain is enough to soak the standard filter element throughout the term of your journey which is still drawing water into the engine, and a soaked element is like driving with the choke full on !!!
Click to expand...

You'd just need to be a bit careful Fossy that the old box still in place doesn't act as a water scoop to throw flood water up into the cone filter.
 
rossyl

rossyl

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3,312
Fossy said:
Whatever happens, i,m modding my intake to be more along the lines of the Trofeo as pictured in the link, as I went through a flooded section on the A127 near me only the other day and now I cannot get this out of my head.
...
Click to expand...

It would be good if we could try and get to some form of solution for this. It is mentioned on many forums many times, but with exception to dilling holes in the plastic box, there seems to be no solution.


Has anyone spoken to any of the Indies reagrding this?

Parisien said:
....yup...thats about it...single biggest reason for engine failing in 4200s!
P
Click to expand...
Frank, did you ever speak to Marios about it?
 
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hodroyd

hodroyd

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I think we should all look at the problem and offer suggestions, then we can all consider those and come up with the FINAL SOLUTION...!!!!
We can then patent the idea to stop the Italians and everybody else trying to make a buck out of it..??
 
Fossy

Fossy

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Emtee said:
You'd just need to be a bit careful Fossy that the old box still in place doesn't act as a water scoop to throw flood water up into the cone filter.
Click to expand...

MMM, didn't consider that.

Iv sussed it, buy a DB9 inst........no.
 
hodroyd

hodroyd

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I'm with Fossy on some stuff, but I'll keep the Maser and modify it. A full blown ram air scoop in the middle of the bonnet, yeeehhh
 
rossyl

rossyl

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From here, http://www.maseratilife.com/forums/coupe-spyder-gs/8881-spyder-went-kaput-farewell-5.html#post80282

After replacing my engine due to hydro lock, I looked at several solutions to this problem. If there is on comming traffic it only takes about 3" of water to get enough water in to the air box to lock the engine. I modifeid my intake slightly to help with the problem. I removed the bottom of the box first and I installed a cone style filter that clamps to the intake tube. This gives you a couple of inches hieght and with the bottom of the box removed water will not be trapped in the box. Though this is not ideal, it is a little better. The car would have to be submerged in 8" of water to suck water up the intake tube.
Click to expand...
 
Emtee

Emtee

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rossyl said:
From here, http://www.maseratilife.com/forums/coupe-spyder-gs/8881-spyder-went-kaput-farewell-5.html#post80282
Click to expand...

That's fine until an artic' passes you through flood water in the opposite direction. I agree with the thinking, but the existing (and if using a cone filter) redundant filter box should ideally be redesigned not to hold a filter, but to direct air whilst at the same time dispelling water. A bladed scoop based on the box seems a sensible and in-expensive solution.
 
hodroyd

hodroyd

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That's sort of what I was thinking Miles. Maybe removing the airboc and fitting new pipework instead would give good airflow to the cone filter higher up.?.?
 
mondie

mondie

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262
jeez who would have suspected our cars have such a vulnerability, certainly not me. While I dont expect ours will be driven through water of any depth it will get used in winter so this is something to remain wary of. I have explained to the mrs a few times the rules of driving through water, it seems around here people love to blast through it seemingly seeing how high they can send it into the air. You do see the inevitable failed car on the side of the road occasionally. Bell ends.
 
rossyl

rossyl

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What about something like this...if it makes any sense!

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J

JDM

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137
Hydrolock is one of my biggest fears and the original airbox design really doesnt help. I remember taking apart the induction system on a Mitsubishi Shogun not too long ago and it had a series of U bends in it with drain holes at the troughs of each U bend to drain any trapped water. Was a really clever design.

Easiest solution with the 4200 would be to fit an induction kit and locate it in the engine bay. cold air feeds will make little to no difference and the 'ram air effect' only shows benefits at illegal speeds anyway.

The only downside to having an induction kit in the engine bay is a bit of heat soak after sitting in gridlock traffic, but the moment you move off the heat soaked air in the engine bay will clear.
 
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