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VF43 vs TD05 18/20g

Old 03 August 2011, 09:12 PM
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Gava
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Default VF43 vs TD05 18/20g

Hey im looking for a new turbo just didnt know what one is gunna be better? what will produce more power and be a better turbo in general
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Old 03 August 2011, 09:19 PM
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What sort of power are you wanting? Are you happy to sacrifice quick spool for more power or do you want a quick spoling turbo with lots of low down torque
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Old 03 August 2011, 09:23 PM
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well this is the question the mods i have so far is a full 3" decat system, uprated fuel pump, uprated headers, cold air intake, front mount intercooler and need a set of 750cc injectors so wondered what turbo would be better with that lot to hit the 400 horses mark
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Old 03 August 2011, 09:24 PM
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Vf43 i dont know
18g around 350/370
20g 370/400

All dependand on what other stuff you have fitted with them
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Old 03 August 2011, 09:25 PM
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An 18g wont get to 400 a 20 might at a push
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Old 03 August 2011, 09:26 PM
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but will the VF43?
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Old 03 August 2011, 09:29 PM
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43 i dont know. The 18's max out around 370 or just over. But the low down spool is great.
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Old 03 August 2011, 09:31 PM
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is that what you running then on yours mate?
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Old 03 August 2011, 09:37 PM
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Vf43 is good for 350-360 max. The 20g with a meth mix map would get the 400 you want. I am going down the vf48 route with meth map
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Old 03 August 2011, 09:44 PM
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Yep i have an 18g. Had it about 4 years now and still going strong
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Old 03 August 2011, 09:44 PM
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Mainly depends what you have STi or WRX,2.0L or 2.5L and from this you should have look for turbo.



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Old 03 August 2011, 09:52 PM
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i have a 2002 sti 2.0 litre and aint the 43 and 48 practically the same?
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Old 03 August 2011, 10:26 PM
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The vf48 produces better results, do a search on them.
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Old 03 August 2011, 10:45 PM
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Originally Posted by Gava View Post
i have a 2002 sti 2.0 litre and aint the 43 and 48 practically the same?
Yes they're similar just VF48 will flow more and made more bhp,but still these turbos are great on 2.5L

If you looking for spool and real quick road car i would go with 18G or VF34,these two turbos are similar and have similar spool characteristic.

If you are looking for BHP,i would go with 20G,with right setup is possible 400bhp+,with VF43/48 not sure if they will made 400bhp+

VF48 will make with right parts around 360-380bhp,VF43 will make again with right parts 340-375bhp.


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Old 03 August 2011, 11:02 PM
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Don't bother with the VF43, they are prone to cracking VF48 is supposed to be a good turbo OEM upgrade
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Old 03 August 2011, 11:33 PM
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TBH all the above will give similar reults on a bug STi in the real world IMHO

When I went for my TD05 18G plus a bit of methanol on my bug I went for EXE-TC suspension to try and stop it from killing me...

http://www.exe-tc.co.uk/news_images/...20Iss%2042.pdf

Shaun
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Old 03 August 2011, 11:38 PM
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is that a plug there shaun lol

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Old 03 August 2011, 11:40 PM
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Sc38 or Sc40 be perfect on a new age sti. sc40 if its a jdm
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Old 04 August 2011, 05:31 AM
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sorry for my ignorance but what is a sc38? and its not a jdm its just a sti prodrive
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Old 04 August 2011, 07:14 AM
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Scooby clinics billet range
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Old 04 August 2011, 09:48 AM
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If you looking for spool and real quick road car i would go with 18G or VF34,these two turbos are similar and have similar spool characteristic.


He has a 35 from standard so a 34 will give little or no gain
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Old 04 August 2011, 09:50 AM
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Would be a vf30 if bug prodrive.
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Old 04 August 2011, 09:57 AM
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Originally Posted by LegacySTi View Post
Would be a vf30 if bug prodrive.
Would not. Vf35 from factory. Have one on my garage floor lol
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Old 04 August 2011, 10:08 AM
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Seeing as you have 740cc's i.e. loads of fuelling (for well over 500!), then I'd whack on the SC42 Billet. Assuming all other supporting mods are sorted, you'd be unlucky not break 400 on V-Power only (probably lol).

Kev at the Clinic seems to think the spool of the 42 is similar to the "2 sizes down" SC38!

Last edited by joz8968; 04 August 2011 at 10:10 AM.
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Old 04 August 2011, 10:44 AM
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TD05-18G for me produces 388 PS at a 2.0 lt engine with supporting mods
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Old 04 August 2011, 10:49 AM
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I have always wondered how an 18G would compare directly to the VF48 actually. Particularly interested in seeing them with a meth mix!
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Old 04 August 2011, 10:52 AM
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Looking to swap my 18g for a vf35 if anybody interested

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Old 04 August 2011, 11:38 AM
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I have a vf35 coming off my car in 10 days time and if you are certain about swapping it i will do a deal with you mate.
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Old 04 August 2011, 11:48 AM
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Why are you going for a smaller turbo?
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Old 04 August 2011, 12:46 PM
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Originally Posted by Turbotits View Post
If you looking for spool and real quick road car i would go with 18G or VF34,these two turbos are similar and have similar spool characteristic.


He has a 35 from standard so a 34 will give little or no gain
Better spool than VF35 have VF34 or 18G.


Jura
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