Top Mount ST Question

Aerotest · 03-09-2015, 03:46 AM

For those that have experience with a top mount kit, what are the under hood temps like? Melting of wires, valve cover leaks, etc.? Are these show cars or can you make repeated pulls without setting the car on fire or damaging wires?

Thanks in advance.

The1ontop · 03-09-2015, 06:41 AM

No you won't melt anything and yes it's also easier to access things with the top mount not just a show thing

135Pats · 03-09-2015, 08:57 AM

Depends. Mixed results, some kits seem to be fine, others absolutely have caused wire looms to melt, valve covers to melt, all sorts of fun stuff. FWIW i've seen the VM kit in person and it appeared to fit nicely, owner was able to get the engine cover back on (honestly easier said than done w a top mount).

Aerotest · 03-09-2015, 04:35 PM

Good feedback. Thanks and keep it coming.

3000GT MR · 03-09-2015, 05:25 PM

I just got my headers back from getting ceramic coated. I'm also using the supplied turbo blanket, coating and wrapping the dp and also coating the WG tubes for no reason. First thought on my mind was performance second was heat management. I'll let know when I get it installed. This is with the vm kit. My bottom mount was fine just wrapped and the tubes came up to the valve cover. I even had a wire loom sitting on the header for a month before I found it. Zero damage sitting on the heat wrap

Aerotest · 03-09-2015, 07:39 PM

Quote:

Originally Posted by 3000GT MR

I just got my headers back from getting ceramic coated. I'm also using the supplied turbo blanket, coating and wrapping the dp and also coating the WG tubes for no reason. First thought on my mind was performance second was heat management. I'll let know when I get it installed. This is with the vm kit. My bottom mount was fine just wrapped and the tubes came up to the valve cover. I even had a wire loom sitting on the header for a month before I found it. Zero damage sitting on the heat wrap

I was hoping you would chime in.....not that I don't appreciate the other comments. I am interested in your experience with the VM kit and comparison of engine bay heat. I have two friends with FFTec bottom kits and they are considerably cooler than stock turbos. Which turbo are you planning to run?

3000GT MR · 03-09-2015, 09:02 PM

Quote:

Originally Posted by Aerotest

Quote:

Originally Posted by 3000GT MR

I just got my headers back from getting ceramic coated. I'm also using the supplied turbo blanket, coating and wrapping the dp and also coating the WG tubes for no reason. First thought on my mind was performance second was heat management. I'll let know when I get it installed. This is with the vm kit. My bottom mount was fine just wrapped and the tubes came up to the valve cover. I even had a wire loom sitting on the header for a month before I found it. Zero damage sitting on the heat wrap

I was hoping you would chime in.....not that I don't appreciate the other comments. I am interested in your experience with the VM kit and comparison of engine bay heat. I have two friends with FFTec bottom kits and they are considerably cooler than stock turbos. Which turbo are you planning to run?

I'm going with the same turbo I ran on the bottom mount the pte 6466, how ever I'll be using a 1.00ar vs the .82 to make up the difference with the twin scroll. The bottom mount ran cooler than stock for the most part. After back to back pulls tuning, or dyno sessions it would get pretty hot as expected. Normal driving was was better than stock temp wise. My normal routine when I was tuning or beating on the car was to come home and leave the hood open in the garage so I have a very good idea of what to expect.

Aerotest · 03-09-2015, 09:18 PM

Looking forward to delta temp feedback, especially with those Savannah summers.

3000GT MR · 03-11-2015, 01:26 PM

Quote:

Originally Posted by Aerotest

Looking forward to delta temp feedback, especially with those Savannah summers.

Its already 85*F here. Ill hook my IGrill2 up and i can record and graph out the Delta between under hood and ambeint. Lol. I knew it would come in handy for other things than just cooking.

teknic90 · 03-11-2015, 01:57 PM

^ lol

3000GT MR · 03-13-2015, 11:09 AM

@Aerotest I have 3 temp probes and 1 ambient probe. I was thinking putting one temp probe on the plastic valve cover over cyl 2 and cyl5 and maybe the third near the intake? Or any other area of concern? The ambient will go in the cowl closest to the windshield wiper. This will be done on my fbo before the ST to compare to the ST when it gets installed

Aerotest · 03-13-2015, 01:36 PM

Quote:

Originally Posted by 3000GT MR

@Aerotest I have 3 temp probes and 1 ambient probe. I was thinking putting one temp probe on the plastic valve cover over cyl 2 and cyl5 and maybe the third near the intake? Or any other area of concern? The ambient will go in the cowl closest to the windshield wiper. This will be done on my fbo before the ST to compare to the ST when it gets installed

Great plan. This will a valuable piece of data IMO. if you can remember record ambient temp.

03-09-2015, 03:46 AM	#1
Aerotest First Lieutenant 15 Rep 315 Posts Drives: 2008 E90 335i 6MT Join Date: Aug 2013 Location: Yo mama iTrader: (0)	Top Mount ST Question For those that have experience with a top mount kit, what are the under hood temps like? Melting of wires, valve cover leaks, etc.? Are these show cars or can you make repeated pulls without setting the car on fire or damaging wires? Thanks in advance.
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03-09-2015, 06:41 AM	#2
The1ontop Second Lieutenant 11 Rep 228 Posts Drives: 2007 335i E92 Join Date: Nov 2013 Location: Maryland iTrader: (0)	No you won't melt anything and yes it's also easier to access things with the top mount not just a show thing
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03-09-2015, 08:57 AM	#3
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	Depends. Mixed results, some kits seem to be fine, others absolutely have caused wire looms to melt, valve covers to melt, all sorts of fun stuff. FWIW i've seen the VM kit in person and it appeared to fit nicely, owner was able to get the engine cover back on (honestly easier said than done w a top mount). __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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03-09-2015, 04:35 PM	#4
Aerotest First Lieutenant 15 Rep 315 Posts Drives: 2008 E90 335i 6MT Join Date: Aug 2013 Location: Yo mama iTrader: (0)	Good feedback. Thanks and keep it coming.
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03-09-2015, 05:25 PM	#5
3000GT MR Major 265 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	I just got my headers back from getting ceramic coated. I'm also using the supplied turbo blanket, coating and wrapping the dp and also coating the WG tubes for no reason. First thought on my mind was performance second was heat management. I'll let know when I get it installed. This is with the vm kit. My bottom mount was fine just wrapped and the tubes came up to the valve cover. I even had a wire loom sitting on the header for a month before I found it. Zero damage sitting on the heat wrap __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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03-09-2015, 09:18 PM	#8
Aerotest First Lieutenant 15 Rep 315 Posts Drives: 2008 E90 335i 6MT Join Date: Aug 2013 Location: Yo mama iTrader: (0)	Looking forward to delta temp feedback, especially with those Savannah summers.
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03-11-2015, 01:57 PM	#10
teknic90 Lieutenant 99 Rep 565 Posts Drives: G20 M340i Join Date: Jun 2012 Location: Dallas, TX iTrader: (13) Garage List 2020 G20 M340i [0.00] 2016 BMW 340i [0.00]	^ lol
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03-13-2015, 11:09 AM	#11
3000GT MR Major 265 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	@Aerotest I have 3 temp probes and 1 ambient probe. I was thinking putting one temp probe on the plastic valve cover over cyl 2 and cyl5 and maybe the third near the intake? Or any other area of concern? The ambient will go in the cowl closest to the windshield wiper. This will be done on my fbo before the ST to compare to the ST when it gets installed __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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