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      04-25-2013, 10:41 PM   #1
Chriskm3
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Vf 620 vs. Vf 540 supercharger dyno

Hey guys. Here is a Litle dyno sheet for those considering supercharging their car on a budget. This dyno shows two pulls. The green is for the Vf 540 kit with akra hfc exhaust and the red one is for the vf620 supercharger kit on the same car. My base dyno was 39 whp with aa xpipe with magnaflow exhaust, Drop in filter and the 240 e software.
Next on the list is to go catless as it seems to yield over. 20+ whp on shown dynos. After that Vf 650 kit.
I would like to get over 600whp without doing a low compression engine build. Time will tell.
Vf 620 -Green run; 558 whp 369 trq on 91 oct
Vf 540- Red run; 508 whp 335 trq on94 oct
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Last edited by Chriskm3; 04-26-2013 at 02:03 PM.
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      04-25-2013, 10:54 PM   #2
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Looks good man. I think the VF 540 and 620 need to be flip flopped from red and green though.
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      04-25-2013, 10:54 PM   #3
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I think you might have confused the Red and Green line in your last statement
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      04-26-2013, 12:58 AM   #4
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I had a ride in Chris' car today. Pulls like a freight train. The car can be scary at speeds.
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      04-26-2013, 01:56 AM   #5
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Quote:
Originally Posted by Sandye90m3 View Post
I think you might have confused the Red and Green line in your last statement
+1.

OP you stated " The green is for the Vf 540 kit with akra hfc exhaust and the red one is for the vf620 supercharger kit on the same car ".
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      04-26-2013, 07:03 AM   #6
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Quote:
Originally Posted by THE-FN-MAN View Post
Looks good man. I think the VF 540 and 620 need to be flip flopped from red and green though.
Thanks. Posting late at night has its consequences. All good Now
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      04-26-2013, 07:04 AM   #7
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Quote:
Originally Posted by Superfly_M3 View Post
I had a ride in Chris' car today. Pulls like a freight train. The car can be scary at speeds.
Thanks Andy. Power is very addictive. Lets see of we can brake that 600 whp barrier.
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      04-26-2013, 07:25 AM   #8
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Quote:
Originally Posted by Chriskm3 View Post
Vf 540 -Green run; 558 whp 369 trq on 94 oct
Vf 620- Red run 508 whp 335 trq on91 oct
Is this a misprint or does the 540 make more hp because using 94 octane? The red line is higher in the graph... I was just curious if the change in octane during the runs made this big of a difference.
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      04-26-2013, 07:30 AM   #9
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adding meth will give you 10-20whp. If you dyno in cooler temps, you'll make more power. Make sure you are completely catless...
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      04-26-2013, 07:45 AM   #10
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Quote:
Originally Posted by happos2 View Post
Is this a misprint or does the 540 make more hp because using 94 octane? The red line is higher in the graph... I was just curious if the change in octane during the runs made this big of a difference.
Sorry. Just a misprint on my behalf. Late night posting. .
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      04-26-2013, 08:53 AM   #11
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Quote:
Originally Posted by Chriskm3 View Post
Sorry. Just a misprint on my behalf. Late night posting. .
Haha...no problem. I was thinking you editted it but now I see that you didn't and I just reposted what others above state. My bad!

Nice power...I want it!
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      04-26-2013, 09:37 AM   #12
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Damn, that's impressive, you broke the 500whp on 91oct with your VF540, curious to know what you would've done on 94!!

I'm dynoing my VT1-535 next week when I'll install my test pipes, I always run 94octane, hope to see 500 as well!
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      04-26-2013, 01:34 PM   #13
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Very nice. I wish we had a decent dyno around here.
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      04-26-2013, 02:04 PM   #14
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Quote:
Originally Posted by Alex07M3 View Post
Damn, that's impressive, you broke the 500whp on 91oct with your VF540, curious to know what you would've done on 94!!

I'm dynoing my VT1-535 next week when I'll install my test pipes, I always run 94octane, hope to see 500 as well!
Thar run was on 94. Sorry the 620 run was on 91.
You should be good. Superbly dynod 501 with Dinan mid pipe and 94 with ess550. Good luck
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      04-26-2013, 02:06 PM   #15
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Sick Numbers!! on that 540 kit .. the 620 is pretty impressive as well.. go catless and you should be 570 and above. Also where did you dyno? I just got a Gintani Stage 2 kit gonna be installing in a few weeks.
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      04-26-2013, 05:25 PM   #16
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How much boost were you running on the 540 and also the 620?
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      04-26-2013, 05:34 PM   #17
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Quote:
Originally Posted by e92livin View Post
How much boost were you running on the 540 and also the 620?
620 is at 6.7 and the 540 was about 5ish. Don't know the 540 boost was exactly as I got my gauge installed after the sc upgrade
Bimmersport can send you to Westport.
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      04-26-2013, 05:39 PM   #18
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Hi flow cat exhaust... is that both primary and secondary?
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      04-26-2013, 05:43 PM   #19
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Quote:
Originally Posted by SYZ View Post
Hi flow cat exhaust... is that both primary and secondary?
Akra evo has only primary hfc in secondary location. So just one set of hfc. Soon to be removed and 600 whp here I come.
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      04-26-2013, 06:21 PM   #20
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Very nice! Have you run any other supercharged cars?
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      04-26-2013, 06:36 PM   #21
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Quote:
Originally Posted by Mike Benvo View Post
Very nice! Have you run any other supercharged cars?
Ya. A few. With the 540 Vf I ran e47 Stsge 2 aa. Ess 550 and pulled on those both. With the 620 I've raced Sti's m5 with full mods. And ess650
http://www.m3post.com/forums/showthread.php?t=831753
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      04-26-2013, 06:56 PM   #22
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Quote:
Originally Posted by Alex07M3 View Post
Damn, that's impressive, you broke the 500whp on 91oct with your VF540, curious to know what you would've done on 94!!

I'm dynoing my VT1-535 next week when I'll install my test pipes, I always run 94octane, hope to see 500 as well!
Quote:
Originally Posted by Chriskm3 View Post
Ya. A few. With the 540 Vf I ran e47 Stsge 2 aa. Ess 550 and pulled on those both. With the 620 I've raced Sti's m5 with full mods. And ess650
http://www.m3post.com/forums/showthread.php?t=831753
You raced ESS 550 with Complete OEM exhaust and all cats and you did pull on it. ESS 550 with stock exhaust made 471whp Here's is a dyno of ESS 550 Kit:
Green Line: ESS 550 with stock exhaust
Blue Line: ESS 550 with Dinan Catless Midpipe and OEM muffler
Red Line: ESS 550 with Akra Evo.

Lets not forget you also lost (3 times ) to a Completely stock E90 with 240e software through 2nd and 1/2 3rd gear pull but we can blame that on "no traction"

I didn't know there was an E47. Must be special order
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