Author Topic: help me reach 100! - update! GTI HEAD BOUGHT!  (Read 30187 times)

Offline Khare

  • Serious forum addict
  • *
  • Posts: 7,627
  • The bear that khares
help me reach 100! - update! GTI HEAD BOUGHT!
« on: 05 October 2008, 22:35 »
gonna start this topic after mew said i can reach 100hp (ish) with less that £100.

let me state where i am at the moment.
Weber 32/34 carb
GTI camshaft.

thats what i have at the moment and im running 82hp.
Mew suggested gti 8v head and gti 8v exhasut manifold. saw this beauty on ebay.
click here

Ive got a 1989 1.6 driver. Exhaust manifold is C clip type. Will this manifold on ebay replace my standard manifold and downpipe?
« Last Edit: 07 October 2008, 18:05 by kharekatoh »

Offline Mew

  • I live here
  • *****
  • Posts: 3,589
Re: help me reach 100!
« Reply #1 on: 05 October 2008, 22:41 »
Was just about to post the link to that, saw it ealier! Yeah that will replace your current manifold and downpipe.

Btw, i never said you can reach 100bhp, i just said i'm sure you'll get more than what you currently have!

Offline Khare

  • Serious forum addict
  • *
  • Posts: 7,627
  • The bear that khares
Re: help me reach 100!
« Reply #2 on: 05 October 2008, 22:45 »
Btw, i never said you can reach 100bhp, i just said i'm sure you'll get more than what you currently have!
well im gonna try reach 100 anyway :grin:
if i can get over 90 i'l be very happy indeed.

Offline danny_p

  • Forum addict
  • *
  • Posts: 4,646
Re: help me reach 100!
« Reply #3 on: 05 October 2008, 23:41 »
on a 1.6 with

webber 32/34
PB head and cam (gti)  with minor bit of porting
shaved hedghog ( manifold heater)
full gti exhaust
k jet 8v dizzy

ive topped 100 quite easaly
all the VW's have gone bar 1.

Offline Khare

  • Serious forum addict
  • *
  • Posts: 7,627
  • The bear that khares
Re: help me reach 100!
« Reply #4 on: 05 October 2008, 23:43 »
on a 1.6 with

webber 32/34
PB head and cam (gti)  with minor bit of porting
shaved hedghog ( manifold heater)
full gti exhaust
k jet 8v dizzy

ive topped 100 quite easaly
hedgehod thing, is it easy to do? and what does shaving it do?

Offline danny_p

  • Forum addict
  • *
  • Posts: 4,646
Re: help me reach 100!
« Reply #5 on: 06 October 2008, 00:59 »
the hedghog is lives below the carb in the inlet manifold and it is meant to help mix air and fuel at mega low tempritures but as it never gets that cold here it's not really needed and it has to the most flow restricting thing possible so take it out and and cut the bugger down flat.

the mod to hedghog itself is easy but the inlet manifold is not fun to remove
« Last Edit: 06 October 2008, 01:04 by danny_p »
all the VW's have gone bar 1.

Offline DarnPB

  • I live here
  • *****
  • Posts: 1,958
  • Formerly Darnpistonbroke
Re: help me reach 100!
« Reply #6 on: 06 October 2008, 02:29 »
Btw, i never said you can reach 100bhp, i just said i'm sure you'll get more than what you currently have!
well im gonna try reach 100 anyway :grin:
if i can get over 90 i'l be very happy indeed.

That is still 100 down on what I have!! :evil: :evil: :evil:


THE FORUMS NUMBER ONE ANTI-FOOTBALL FAN!!!

Offline Cosworth Lee

  • Not said much yet
  • **
  • Posts: 77
Re: help me reach 100!
« Reply #7 on: 06 October 2008, 08:15 »
on a 1.6 with

webber 32/34
PB head and cam (gti)  with minor bit of porting
shaved hedghog ( manifold heater)
full gti exhaust
k jet 8v dizzy

ive topped 100 quite easaly

surley the money spent on that lot, you could just buy an old gti engine and install that?

would probably work out cheaper and ur gna have at least 130ish! in there.

Get this a lot in the ford scene, with people trying to make a 1.4 or 1.6 quicker, its so more ecomimical just to change the engine!

I suppose the only argument u may have is "insurance", but from the way i see it i cant think there will be much difference in price between a modified 1.6 on the limit at 100bhp, or a gti engine swap to 130!

Oh and just to add, you will probably spend all that money and a month later u will probably want more power again!!
Ive had 480 bhp before, and even tho i sold it cos it was too quick, i still wanted more power!!

no brainer really. stop buggering around, get on ebay and buy an old gti engine, prob get one for £100!

Offline Diamond Hell

  • Serious forum addict
  • *
  • Posts: 7,997
  • Opinions я Us
Re: help me reach 100!
« Reply #8 on: 06 October 2008, 08:57 »
Ignore the nay-sayers.  If you want to chase BHP on a 1.6 - go for it.  A bit of cheap junkyard tuning is good for a bit of low-price fun.

I have a K-jet dizzi here, if you're interested.  This came out of a K-jet fueled Scirocco, so it should be the one with the more aggressive advance.

If it were me I'd hold on and get a PB head on at the same time you do the manifold and downpipe.  This'll get the motor breathing much better.  Porting work can get quite expensive as you're generally paying for time from an experienced engineer. 

You *can* always buy a Dremel-type tool and smooth out some of the bigger lumps on the casting (not too smooth though - you need the inlet charge to tumble).  If you test fit the exhaust and inlet manifold gaskets you will see if there's any material sticking out past the gaskets.  If there is, cut this back with the dremel, to open the ports out.  You can do this both on the head and on the manifolds,  so you have matched the ports to the manifolds - this will improve flow as there aren't any 'steps' in the system.  It's not rocket science, but it might just help you achieve your 100bhp.

Make sure you've got healthy compression, specifically that your bottom end is sound before going down this route.  Also bear in mind that if you dramatically improve flow you might lean the fueling out, so after a batch of mods you may need to re-jet the carb - this is really a job best done on a rolling road - more expense, but that's quite a lot of what turning up the wick on car is all about....
Just because you're offended doesn't make you right.

Holiday cottages on the Isle of Wight for 2-10 people? PM me.

VeeDubGTI16v

  • Guest
Re: help me reach 100!
« Reply #9 on: 06 October 2008, 16:08 »
i have an 8v cam somewhere you can have if your ever near guildford