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td05 18g or 20g???

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Old 11 February 2010, 06:36 PM
  #31  
scoobydog63
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Simon do you not find the t abit laggy on your car and how is it compared to the 20g?
Old 11 February 2010, 07:26 PM
  #32  
Mus
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Simon said he found the T to be more resposive than the 20g

andy f took of the md321t to swap for a 20g on TA event

just goes to show diffrent turbos work diffrently on diffrent setups
Old 11 February 2010, 09:37 PM
  #33  
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Originally Posted by mus 1st class sti type r
Simon said he found the T to be more resposive than the 20g

andy f took of the md321t to swap for a 20g on TA event

just goes to show diffrent turbos work diffrently on diffrent setups
500rpm sooner spool on the T than on my 20g??

Simon
Old 11 February 2010, 10:04 PM
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Originally Posted by mus 1st class sti type r
Simon said he found the T to be more resposive than the 20g

andy f took of the md321t to swap for a 20g on TA event

just goes to show diffrent turbos work diffrently on diffrent setups
Andy hasnt done a TA event in his car that i am aware of.

He drove Mark at Lateral's the year before last at a couple of rounds.
Old 11 February 2010, 10:09 PM
  #35  
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it was Scoobysprint..

Simon
Old 11 February 2010, 10:09 PM
  #36  
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I think he meant ScoobySprint
Old 11 February 2010, 10:09 PM
  #37  
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Confusing as hell
Old 11 February 2010, 10:16 PM
  #38  
Mus
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Tell me about it lol
Old 12 February 2010, 09:06 PM
  #39  
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Can anyone tell me at what rpm the 18g and 20g make 1bar of boost and full boost by, on a 2.0L? How much earlier spooling is the 18g compared to the 20g on a 2.0?

Cheers....
Old 12 February 2010, 09:08 PM
  #40  
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avcs or non avcs ?

what gear ?

Old 12 February 2010, 09:14 PM
  #41  
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It'd be on the lowly WRX v.1 hyrdraulic heads.

Gear?... Er, whichever is tyically used for dyno runs, so as to keep some kind of like-for-like true comparison, I guess(?)

Last edited by joz8968; 13 February 2010 at 12:04 AM.
Old 13 February 2010, 12:04 AM
  #42  
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Anyone?
Old 13 February 2010, 12:13 AM
  #43  
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Originally Posted by joz8968
Anyone?
full boost about 3700rpm in 3rd on the 18g, maybe slightly sooner and about 4000rpm on a 20g roughly.

Simon
Old 13 February 2010, 12:21 AM
  #44  
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Cheers Simon.

So it really IS worth getting the 18g over 20g, when running the v.1 heads? >300rpm earlier spool in favour over a possible 20bhp extra top end (but not guaranteed anway!), is much more desirable on the road, agreed?

Last edited by joz8968; 13 February 2010 at 12:37 AM.
Old 13 February 2010, 12:33 AM
  #45  
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yes
Old 13 February 2010, 12:36 AM
  #46  
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lol

Cheers
Old 13 February 2010, 12:49 AM
  #47  
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same question as Joz...except on a STi5, rebuilt engine including forged pistons, STi 9 rods, recently rebuilt gearbox etc, 18 or 20G
Old 13 February 2010, 12:59 AM
  #48  
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Ozzy your heads can flow around 460-480bhp I think (maybe more), so you will get the most out of the 20g, as regards the extra 20bhp or so extra top-end it can offer over the 18g. Whether the heads' better flow allow it to spool up any earlier than 4000rpm though, haven't the foggiest ...... Simon?!!

Last edited by joz8968; 13 February 2010 at 01:01 AM.
Old 13 February 2010, 01:34 AM
  #49  
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Thats what I thought, but spool vs the extra Hp is what im currently undecided on, really do need to get my mind made up and get one bought though!!

Oh randomly, was reading this thread at work on a break, whilst talking to my manager, I then turned around to look at my manager and noticed her eyes where fixed on the screen, i then look back at the screen and notice your profile image smack bang in the centre...I think she liked
Old 13 February 2010, 02:08 AM
  #50  
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Brilliant! A work bitch getting fruity! You should've taken your chances and 'siezed the moment'...... LOL

Last edited by joz8968; 13 February 2010 at 02:09 AM.
Old 13 February 2010, 10:44 AM
  #51  
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Originally Posted by joz8968
Brilliant! A work bitch getting fruity! You should've taken your chances and 'siezed the moment'...... LOL
She's in her 50's...although not tooooo bad for an old bird
Old 13 February 2010, 11:23 AM
  #52  
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There's something about women in the workplace. I think it's simply to do with the lack of 'em - so your hormones go a bit mental lol..........
Old 17 June 2010, 01:09 PM
  #53  
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thought I'd bump this thread up, I am considering a 20g for my 05 wrx (along with 650's, fmic etc)

Out of interest what are the heads on an 05 wrx good for, would I be better getting a set of STI heads, I've heard the v5 are good

cheers
Iain
Old 17 June 2010, 01:15 PM
  #54  
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Originally Posted by IainMilford
thought I'd bump this thread up, I am considering a 20g for my 05 wrx (along with 650's, fmic etc)

Out of interest what are the heads on an 05 wrx good for, would I be better getting a set of STI heads, I've heard the v5 are good

cheers
Iain
you will need a gearbox as well a friend ran a tdo5-20g on his 03 wrx mods were,
20g
front mount
pinks
full decat including up-pipe

that was meant to be running around 370bhp and killed the gearbox after a day of use, he then fitted a box out of 2.5 hawkeye wrx which lasted till he sold the car.
Old 17 June 2010, 01:19 PM
  #55  
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I know the box will be at risk but I have heard so much either way, a guy in my local club ran 395 bhp on a classic wrx, with over 100K on the clock for 2 years before the engine started to knock ... never had a problem with the gearbox. My car is only used at weekends and the odd track day so should be ok, when it goes it goes.

I want to know if my heads are ok, or if it would be better to change to a set of STi heads with different cams etc
Old 19 June 2010, 12:37 PM
  #56  
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TY754 gearbox fitted to Classics version 5 & 6 is far stronger than the TY752 as is the TY754 fitted to New Age WRX. The TY754 gearbox is perfectly capable of operating well beyond 400 bhp unless driven by someone completely lacking mechanical sympathy. Do not run a paddle clutch.
Old 19 June 2010, 03:07 PM
  #57  
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Originally Posted by harvey
TY754 gearbox fitted to Classics version 5 & 6 is far stronger than the TY752... The TY754 gearbox is perfectly capable of operating well beyond 400 bhp unless driven by someone completely lacking mechanical sympathy....
That's why I've just replaced my old aged 1993 WRX with a gorgeous gleaming white 1999 STi 5! Gonna fit my 20g/550s/FMIC, etc to that...

Last edited by joz8968; 19 June 2010 at 03:10 PM.
Old 20 June 2010, 09:38 AM
  #58  
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Originally Posted by harvey
TY754 gearbox fitted to Classics version 5 & 6 is far stronger than the TY752 as is the TY754 fitted to New Age WRX. The TY754 gearbox is perfectly capable of operating well beyond 400 bhp unless driven by someone completely lacking mechanical sympathy. Do not run a paddle clutch.
Thanks for the info Harvey, and cheers for your time on the phone the other day, I'll be back in touch when I've got the funds together

Can anyone advise if I should look at getting a set of STi heads to replace my wrx ones?

Cheers
Old 21 June 2010, 12:55 AM
  #59  
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if you add newage sti heads you would need to sort out the AVCS wiring etc and ecu to run it.

Sti5/6 heads work well in the WRX though.

Simon
Old 21 June 2010, 08:32 AM
  #60  
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STi 5/6 heads are nice to have and a simple head and gasket change but it is a lot of work and expense for a modest power hike unless you are chasing top numbers.


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