VRSF intercooler testing on stock turbos

3000GT MR · 08-10-2014, 07:32 PM

Since i never really got to mess with a stock car since all these cool things have came out i figured i'd do the best i could to document progression as i build another ST car.

Starting with my first mod, the VRSF intercooler. Being as pleased as i was with it on my last ST car i figured id stick with something that works. I've read numerous posts about how much faster and more powerful the car felt after doing these upgrades but never really experienced it for my self. My last car went from sled to rocket in a few months so i didn't really appreciate single components as i did a combination.

I decided to go a little different route this time and look into what makes a intercooler give more power besides cooler IAT. So the following tests were done on a 100% stock car with a flash only stg1. I wanted to see the effect the IC had on rear bank knock, timing, boost, and temp. The results were pretty impressive.

I repeated the same exact test on the same road, same path, and within a 2-3*F ambient temp.

The stock IC peaked at about 173*F in third, where as the VRSF peaked at about 128*F. (this was strictly a temp comparison at peak. Timing is invalid in these pictures due to post throttle closure)

(first 2 pictures)

Next lets look at timing. As we know anything above 140's the DME starts pulling timing. How much timing? about 6*

(2nd 2 pictures)

Boost pretty much stayed the same. I would think it it would target regardless based on the DME logic. Rear cylinder bank knock didnt really change a whole lot. Again this is part of the DME logic to make the cylinders as quiet as possible, hence why it pulls timing for hight IAT.

Lastly with ambient temp around 83*F i made 5 pulls back to back. Some running thru multiple gears, some just stretching out gears. The results were really impressive. The max temp was 118, Now you may think why was it cooler than the above testing? My thought on this is simple. I didn't go from a standing start so the intercooler really didn't have time to heat up in the lower gears before it had sufficient airflow going through it to cool the core. My slowest speed was probably around 30MPH and traveling upwards of 100+. So even though your holding gears and boost longer the intercooler becomes very efficient above 30-45mph. Another thing to note is how quickly the IC recovers from a heat soak.

(3rd Last picture)

Next on my list is to run a custom tune that i'll brew up over time and monitor progress into my next ST build.

Data zap. http://datazap.me/u/3000gt-mr/interc...log=0&data=1-3

Ingeniator · 08-10-2014, 07:36 PM

Pics are broken. But sounds like good info. I'm glad your sticking around.

'___' · 08-10-2014, 07:42 PM

Cool story bro, but

are the pics?

I kid!

Good info man! This latest revision to the VRSF intercooler seems to be making a pretty big difference in overall efficiency. It'll be interesting to see the data trail as you get the car built up. Now all you need to do is change your sig!

ragingpanda · 08-10-2014, 07:48 PM

What is an innercooler?

3000GT MR · 08-10-2014, 07:52 PM

Dammit it worked on mine and I just left the house for the night. Well deal with broken pics in the mean time. Sorry

3000GT MR · 08-10-2014, 07:55 PM

Quote:

Originally Posted by ragingpanda

What is an innercooler?

It's a intercooler with auto spell check. I don't have my new computer trained yet

NY135ivishnu · 08-10-2014, 07:57 PM

Quote:

Originally Posted by 3000GT MR

Dammit it worked on mine and I just left the house for the night. Well deal with broken pics in the mean time. Sorry

What happened to your other car?

Ingeniator · 08-10-2014, 08:05 PM

He lost a fight with some trees. Bad luck on fresh pavement and heavy rain.

'___' · 08-10-2014, 08:12 PM

Quote:

Originally Posted by NY135ivishnu

What happened to your other car?

1)

2)

3)

4)

chinko · 08-10-2014, 10:00 PM

Quote:

Originally Posted by '___'

1)

2)

3)

4)

Words are for the poor.

'___' · 08-10-2014, 10:02 PM

Quote:

Originally Posted by chinko

Words are for the poor.

And a picture is worth a thousand words. So, looks I just gave him 4000 words.

3000GT MR · 08-12-2014, 05:18 PM

Ok sorry for the delay. For some reason it worked on my end but apparently broken for everyone else. I changed it to hyperlinks so that the verbiage stays with the corresponding picture

Ingeniator · 08-12-2014, 05:30 PM

Quote:

Originally Posted by 3000GT MR

Ok sorry for the delay. For some reason it worked on my end but apparently broken for everyone else. I changed it to hyperlinks so that the verbiage stays with the corresponding picture

I hate to be the bearer of bad news. But invalid attachment error when I follow the link.

3000GT MR · 08-12-2014, 05:36 PM

Some install pics on the new car. I really like the stud idea with the rubber bushings. If your like me and tear apart your car once a month then you'll appreciate this little addition. Everything fit fine in the e92 M-sport front bumper. Fin packs, welds and overall construction seem to be a little better in quality than my previous one.

The only problem i had was i was missing 1 sticker. So now i only have 1 on the drivers side and nothing on the passenger side. Its kind of throwing my weight and balance off

3000GT MR · 08-12-2014, 05:37 PM

Quote:

Originally Posted by Ingeniator

I hate to be the bearer of bad news. But invalid attachment error when I follow the link.

Damn it! why does it work on my computer? Ok well Im adding the pictures to the end. Ill put them in order.

135Pats · 08-12-2014, 05:41 PM

Yesss stayed with the platform. Good to see you back in the saddle man.

Jeff@TopGearSolutions · 08-12-2014, 05:51 PM

Quote:

Originally Posted by 135Pats

Yesss stayed with the platform. Good to see you back in the saddle man.

I know why he stayed with the platform, the same reason I think I might get another 335i.

Ingeniator · 08-12-2014, 05:51 PM

Yay I can see images.

3000GT MR · 08-12-2014, 05:58 PM

Quote:

Originally Posted by 135Pats

Yesss stayed with the platform. Good to see you back in the saddle man.

Some times i regret my decision. Right now i'm chasing a feeling i miss.

Quote:

Originally Posted by Jeff@TopGearSolutions

I know why he stayed with the platform, the same reason I think I might get another 335i.

What happened to yours? or are you just getting an additional one?

Tiago@VRSF · 08-12-2014, 06:15 PM

I'll have a few stickers sent over in the AM in a few different colors, thanks again for posting your thoughts!

Jeff@TopGearSolutions · 08-12-2014, 06:27 PM

Quote:

Originally Posted by 3000GT MR

Some times i regret my decision. Right now i'm chasing a feeling i miss.

What happened to yours? or are you just getting an additional one?

Stay with it.

My story is a bit long. I only have the C6 z06 right now.

08-12-2014, 06:56 PM

Thanks for sharing your data

Agreed on the hanger bolts. Bought a couple stainless ones and used them in much the same fashion.

08-10-2014, 07:32 PM	#1
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	VRSF intercooler testing on stock turbos Since i never really got to mess with a stock car since all these cool things have came out i figured i'd do the best i could to document progression as i build another ST car. Starting with my first mod, the VRSF intercooler. Being as pleased as i was with it on my last ST car i figured id stick with something that works. I've read numerous posts about how much faster and more powerful the car felt after doing these upgrades but never really experienced it for my self. My last car went from sled to rocket in a few months so i didn't really appreciate single components as i did a combination. I decided to go a little different route this time and look into what makes a intercooler give more power besides cooler IAT. So the following tests were done on a 100% stock car with a flash only stg1. I wanted to see the effect the IC had on rear bank knock, timing, boost, and temp. The results were pretty impressive. I repeated the same exact test on the same road, same path, and within a 2-3F ambient temp. The stock IC peaked at about 173F in third, where as the VRSF peaked at about 128F. (this was strictly a temp comparison at peak. Timing is invalid in these pictures due to post throttle closure) (first 2 pictures) Next lets look at timing. As we know anything above 140's the DME starts pulling timing. How much timing? about 6 (2nd 2 pictures) Boost pretty much stayed the same. I would think it it would target regardless based on the DME logic. Rear cylinder bank knock didnt really change a whole lot. Again this is part of the DME logic to make the cylinders as quiet as possible, hence why it pulls timing for hight IAT. Lastly with ambient temp around 83F i made 5 pulls back to back. Some running thru multiple gears, some just stretching out gears. The results were really impressive. The max temp was 118, Now you may think why was it cooler than the above testing? My thought on this is simple. I didn't go from a standing start so the intercooler really didn't have time to heat up in the lower gears before it had sufficient airflow going through it to cool the core. My slowest speed was probably around 30MPH and traveling upwards of 100+. So even though your holding gears and boost longer the intercooler becomes very efficient above 30-45mph. Another thing to note is how quickly the IC recovers from a heat soak. (3rd Last picture) Next on my list is to run a custom tune that i'll brew up over time and monitor progress into my next ST build. Data zap. http://datazap.me/u/3000gt-mr/interc...log=0&data=1-3 Attached Images __________________ 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 . Last edited by 3000GT MR; 08-13-2014 at 09:48 PM..
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08-10-2014, 07:36 PM	#2
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Pics are broken. But sounds like good info. I'm glad your sticking around. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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08-10-2014, 07:42 PM	#3
'___' Banned 13 Rep 204 Posts Drives: 335 Join Date: Aug 2014 Location: ohio iTrader: (0)	Cool story bro, but are the pics? I kid! Good info man! This latest revision to the VRSF intercooler seems to be making a pretty big difference in overall efficiency. It'll be interesting to see the data trail as you get the car built up. Now all you need to do is change your sig!
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08-10-2014, 07:48 PM	#4
ragingpanda Banned 340 Rep 751 Posts Drives: 135i Join Date: May 2012 Location: Florida iTrader: (0)	What is an innercooler?
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08-10-2014, 07:52 PM	#5
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Dammit it worked on mine and I just left the house for the night. Well deal with broken pics in the mean time. Sorry __________________ 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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08-10-2014, 08:05 PM	#8
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	He lost a fight with some trees. Bad luck on fresh pavement and heavy rain. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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08-12-2014, 05:18 PM	#12
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Ok sorry for the delay. For some reason it worked on my end but apparently broken for everyone else. I changed it to hyperlinks so that the verbiage stays with the corresponding picture __________________ 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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08-12-2014, 05:36 PM	#14
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Some install pics on the new car. I really like the stud idea with the rubber bushings. If your like me and tear apart your car once a month then you'll appreciate this little addition. Everything fit fine in the e92 M-sport front bumper. Fin packs, welds and overall construction seem to be a little better in quality than my previous one. The only problem i had was i was missing 1 sticker. So now i only have 1 on the drivers side and nothing on the passenger side. Its kind of throwing my weight and balance off Attached Images __________________ 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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08-12-2014, 05:41 PM	#16
135Pats Major General 461 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	Yesss stayed with the platform. Good to see you back in the saddle man. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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08-12-2014, 05:51 PM	#18
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Yay I can see images. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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08-12-2014, 06:15 PM	#20
Tiago@VRSF 2108 Rep 43,350 Posts Drives: F90 M5 Join Date: Dec 2007 Location: Doral, FL iTrader: (99) Garage List 2014 F30 328xi [0.00] 2015 F82 BMW M4 [0.00] 2013 Ducati 1199 Pa ... [0.00] 2008 BMW 335i [0.00]	I'll have a few stickers sent over in the AM in a few different colors, thanks again for posting your thoughts!
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08-12-2014, 06:56 PM	#22
FCobra94 Guest 0 Rep n/a Posts Drives:	Thanks for sharing your data Agreed on the hanger bolts. Bought a couple stainless ones and used them in much the same fashion.
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