How much WHP should I get from a VF II? - LotusTalk

rstutts · 06-12-2009, 07:24 PM

I already have a BWR s/c, but I have never put it on a dyno. Supposedly it is around 225, but I don't know. I have a K & N filter and it is desnorkled, but that is about the extent of my 'engine modifications'. I am hoping for arond 290 - 300, but that may be unrealistic. If the whp is only 270- 275, what can I do to get it up to what I hope for (and not spend a lot more money).
Rick

FIL · 06-12-2009, 07:52 PM

I think you calculations are right on. VFII will take you to about 270whp. Squeezing out 30hp would be tough. Here are some ideas that would increase HP or decrease weight:
headers (would require new EFI tune)
decat
exhaust
braille (save 10lbs = +1hp)
lighter wheels

There is a thread around that has the best bang for your buck mods for improving horse power...

luxige · 06-12-2009, 07:59 PM

253 WHP according to this:

Overview supercharge/turbocharge solutions

Anyone know different?

16520Man · 06-13-2009, 09:44 AM

Repository for Vision Function dynos#####

rstutts · 06-13-2009, 06:32 PM

What is decat?

choi0706 · 06-13-2009, 07:12 PM

no cat

LordZ · 06-13-2009, 07:45 PM

Quote:

Originally Posted by luxige

253 WHP according to this:

Overview supercharge/turbocharge solutions

Anyone know different?

That is from some calculation involving a stock car VF dyno'd compared to their stage1/2... It's not an actual output of a dyno somewhere.

As with all dyno's some read high, some read low. I never got the numbers VF did, yet everyone says since it was a dynapak that mine read high.

I'd guess with VF2 you would get somewhere around 270rwhp.

BRTHTAKR · 06-13-2009, 07:47 PM

Quote:

Originally Posted by rstutts

What is decat?

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Larini De-Cat Pipe for the Lotus Elise and Exige - Sector111

...m... · 06-13-2009, 07:53 PM

...not legal for road use, of course, if that matters to you...

06-12-2009, 07:24 PM	#1 (permalink)
rstutts Registered User Join Date: Aug 2008 Location: Martin, TN Posts: 244	How much WHP should I get from a VF II? I already have a BWR s/c, but I have never put it on a dyno. Supposedly it is around 225, but I don't know. I have a K & N filter and it is desnorkled, but that is about the extent of my 'engine modifications'. I am hoping for arond 290 - 300, but that may be unrealistic. If the whp is only 270- 275, what can I do to get it up to what I hope for (and not spend a lot more money). Rick __________________ 2005 Solar Yellow Elise touring package, star shield, hard top, soft top, ACT HDSS clutch, Saikou Michi catch cans, LED tail lights and VF II, 288 whp () 2001 Green Toyota Tacoma, 4 x 4 2008 Red 5455 Massey Ferguson, 6 x 6, cab, ipod, GPS navigation, regular beer holder 2001 Yellow Cat D3G-LGP, custom made beer holder

06-12-2009, 07:52 PM	#2 (permalink)
FIL Serial Thrilla Join Date: Jun 2006 Posts: 236	I think you calculations are right on. VFII will take you to about 270whp. Squeezing out 30hp would be tough. Here are some ideas that would increase HP or decrease weight: headers (would require new EFI tune) decat exhaust braille (save 10lbs = +1hp) lighter wheels There is a thread around that has the best bang for your buck mods for improving horse power... __________________ 05' Elise - BWR supercharger, Quaife LSD, Nitron Race Triple Adjustable, LETSLA, Larini Decat, Larini Exhuast, ACT HDSS, Fidanza flywheel, V2 Fuel Tank, V2 Steering Arms, BWR sway bar, desnorkled, ForcedFed CF splitter, Manly's engine mounts, S111 harness bar, Schroth harness w/ S111 seat grommets, Oil Drain Valve, Painted Black Diffuser, Braille battery, Custom Battery Switch 05' Corvette - Z51 Convertible - 630hp 6.6L [DON'T YOU JUDGE ME!!!] (SOLD!)

06-12-2009, 07:59 PM	#3 (permalink)
luxige luxige Join Date: Jun 2007 Location: MA Posts: 1,187	253 WHP according to this: Overview supercharge/turbocharge solutions Anyone know different? __________________ In theory, there is no difference between Theory and Practice. In practice, there is. - Y. Berra

06-13-2009, 09:44 AM	#4 (permalink)
16520Man June 6, 2005! Join Date: Sep 2004 Location: Near Philadelphia, PA Posts: 37	Repository for Vision Function dynos##### __________________ ST, hardtop, Starshield, cloth seats!

06-13-2009, 06:32 PM	#5 (permalink)
rstutts Registered User Join Date: Aug 2008 Location: Martin, TN Posts: 244	What is decat? __________________ 2005 Solar Yellow Elise touring package, star shield, hard top, soft top, ACT HDSS clutch, Saikou Michi catch cans, LED tail lights and VF II, 288 whp () 2001 Green Toyota Tacoma, 4 x 4 2008 Red 5455 Massey Ferguson, 6 x 6, cab, ipod, GPS navigation, regular beer holder 2001 Yellow Cat D3G-LGP, custom made beer holder

06-13-2009, 07:12 PM	#6 (permalink)
choi0706 Registered User Join Date: Sep 2004 Location: Houston/Austin Posts: 4,228	no cat __________________ Jay-05' ST, HT, Touring Red Rally Ready

06-13-2009, 07:53 PM	#9 (permalink)
...m... Denuo Volatilis Join Date: Jun 2008 Posts: 2,716	...not legal for road use, of course, if that matters to you... __________________ 2005 Federal Elise \| Touring \| Storm Titanium ...73,000 miles and aging beautifully... 2000 New Beetle \| Turbo \| Reflex Silver ...107,000 miles of steadfast service...

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