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So here's what I've got in the works. I got some turbo flange adapters that will mount to the turbo. Both the turbo flanges and airbox inlet hole have a diameter of 2.75":
So here's what I've got in the works. I got some turbo flange adapters that will mount to the turbo. Both the turbo flanges and airbox inlet hole have a diameter of 2.75":
They're the flanges that come with the MST intake kit, for MSTs inlet hose. I still have them. Never used them and ended up turning the car back to stock for trade in. PM me if you want them. If you want to PM me your zip I can send them to you for shipping cost only! I have no need for these anymore.
They're the flanges that come with the MST intake kit, for MSTs inlet hose. I still have them. Never used them and ended up turning the car back to stock for trade in. PM me if you want them. If you want to PM me your zip I can send them to you for shipping cost only! I have no need for these anymore.
Just wondering if you got rid of these. I've contacted MST and also CTS and they won't sell just the adaptor. MST also say they're inlet upgrade for their kit won't fit standard box but it looks very close with some slight mods.
Side note. Are logos still around. I've messaged on Facebook plus emailed off their website and nothing for nearly a month.
Always heard a strange hissing sound when pulling hard and discovered the cracked flexible hose ( top section is perfectly fine, need to remove and inspect the under side where it is exposed to the heat from turbocharger). Same cracked flexible hose on both sides.
Cracked flexible hose
Replaced the faulty section with silicone hose. Replaced with 70mm silicone hose
Initially took measurements for aluminium flange but while during the constant dismantling for measurements, I felt the plastic parts were very hot from the radiant heat from turbocharger. Ended up with silicone for the extra thermal insulation. These silicone hoses were bigger too. Taper from 63mm from turbocharger outlet >> 76mm to air box. Left Intake Right Intake
The engine cover will stay until for now until I get the new bigger air ducts fabricated. Engine cover still works
Btw, this is on a RHD GLC43, should work too for C43. Do check the flexible sections for cracks underneath; less than 90k km on a 4 year old plus ride.
Always heard a strange hissing sound when pulling hard and discovered the cracked flexible hose ( top section is perfectly fine, need to remove and inspect the under side where it is exposed to the heat from turbocharger). Same cracked flexible hose on both sides.
Cracked flexible hose
Replaced the faulty section with silicone hose. Replaced with 70mm silicone hose
Initially took measurements for aluminium flange but while during the constant dismantling for measurements, I felt the plastic parts were very hot from the radiant heat from turbocharger. Ended up with silicone for the extra thermal insulation. These silicone hoses were bigger too. Taper from 63mm from turbocharger outlet >> 76mm to air box. Left Intake Right Intake
The engine cover will stay until for now until I get the new bigger air ducts fabricated. Engine cover still works
Btw, this is on a RHD GLC43, should work too for C43. Do check the flexible sections for cracks underneath; less than 90k km on a 4 year old plus ride.
This is how I was looking to do it. But with 70mm pipe seeing that was the measurement in earlier post.
Are the red bits straight 76mm or 76mm back down to the 70mm box size?
Also I see no adaptors for turbo inlet so that answers my question of if they're needed or not.
Tried to send pm but apparently don't have access for that.
Red section is straight 76mm. Remove the 2x T25 bolts and junk the stock plastic adaptor. Use 4 ply or thicker silicone hose, slowly trim to length (not a straight cut down; tapered as the tract is angled slightly down) and it will conform nicely to ID of the stock air box and fit snugly. Tested for over 10,000km with no issues of coming loose. Stock ride is 1.39 bar boost when drove hard.
Parts list:
Airbox >> 76mm ID straight silicone hose (trim to fit: Left ~110mm & Right 155mm length) >> 76mm ID aluminium coupler >> 63mm ID to 76mm ID silicone reducer 90 degrees >> Turbocharger 64mm OD inlet
Cost around $100 SGD for these parts. No significant change to butt dyno; drives just like stock.
Most plastic parts in the engine are getting brittle and broke when removed for the first time. Hence more of a preventive mod.
Last edited by werks400; Today at 05:07 AM.
Reason: Edit max boost value
Red section is straight 76mm. Remove the 2x T25 bolts and junk the stock plastic adaptor. Use 4 ply or thicker silicone hose, slowly trim to length (not a straight cut down; tapered as the tract is angled slightly down) and it will conform nicely to ID of the stock air box and fit snugly. Tested for over 10,000km with no issues of coming loose. Stock ride is 1.5 bar boost when drove hard.
Parts list:
Airbox >> 76mm ID straight silicone hose (trim to fit: Left ~110mm & Right 155mm length) >> 76mm ID aluminium coupler >> 63mm ID to 76mm ID silicone reducer 90 degrees >> Turbocharger 64mm OD inlet
Cost around $100 SGD for these parts. No significant change to butt dyno; drives just like stock.
Most plastic parts in the engine are getting brittle and broke when removed for the first time. Hence more of a preventive mod.
Thanks for info. Was trying to find something on web of someone doing just this without the adaptors. I've got BMC replacement filters and tune so easing flow restrictions little is the aim.
10-12-2022, 07:43 PM
. Will be curious on performance and pricing.
