Dum-Dums Bianca GTi6

[Scott]

Niall you're being a grumpy bastard tonight!

It's good to see someone trying something different

[Niall]

Niall you're being a grumpy bastard tonight!

It's good to see someone trying something different

Not at all just basing my assumptions on previous project attempts.
Anyway I'm always a grumpy bastard! Wouldn't you be if you looked like me? Still could be worse, could be ginger.

/self troll

[Scott]

Fair point. I'll let you off.

[thethorne]

good to see my old manifold getting used. I look forward to seeing it fitted mate.

[Ed Doe]

Dum, I'm not downing your project, but PLEASE get it mapped!! It'll run all kinds of different, you'll be supplying massively different air at different rpms, not to mention it'll be laminar & turbulent at completely different points compared to the stock plenum, so just bunging an uprated FPR on it will cause it to run rich as feck and you'll get incomplete mixing prior to combustion...
Also, unless you're trumpetizing the end of the bodies, you're gonna be ending up with pretty short tracts, which will improve top-end power and throttle response, but sacrifice a lot of torque at mid-range. Which means more than ever the above applies, as you've shifted how much fuel it'll be able to burn at any given rpm and throttle position...

I'm not hating on you, I'd love to do this kinda thing, but imo cams are the 1st port of call, then bodies, as halving the fuel economy of the engine for a comparatively mild gain on a stock engine doesn't float my boat!

Either way, crack on, but please do it properly with the mapping....

[Jonny b]

It's awsome but I actually agree with mr eccentric, tis why my bodies are still sat in the shed and not on the car, have my standalone managment but need to get it fitted and save for mapping, should have done it ages ago but I keep buying other shineys lol

[cwspellowe]

Been there, done that, millions of issues. I tried R1 bodies on mine and for the life of me I couldn't get them to even idle properly. Got as far as a first test drive, booted it up the street, sounded porn then backfired and blew one of the butterfly valves off :/

Get it working though man, the sound alone is worth it especially if you can get it running for cheap! And put a Compbrake sticker on them somewhere, will shut Ed up for a bit

[kernow_joe]

coming along well, been wanting bodies on mine but as pellows says, this seems to be what I've read everywhere, ball ache to get right

[Matt]

f*ck may have to change direction with mine again. Can't have mine being te same as yours :/

[Dum-Dum]

Cheers for all the nice comments guys.

Yes I am going to do similar to Yanni however hopefully with a little more adjustability. If that fails im highly tempted by a UAFC Piggyback fuel management controller which is £100 from www.trigger-wheels.com.

You can call it bodgetastic all you like but do you think its any coincidence that the bodies dont need spacing to fit the manifold and their inside diameter is the same as the manifold runners?

Ed, my tracts are gonna be longer than Yannis, Ive cut the inlet manifold about 4 inches longer for a start, I wanted to keep the inlet runners as long as possible as that keeps the smooth airflow after the bodies and where they meet the manifold. I will not have space for trumpets and air filters because of how long I have left the manifold, there is only gonna be about an inch of space between the rad and the filter as it is. I dont think the tract length is more than an inch shorter than the start of the trumpets on the standard manifold.

Samass, Yes you can have it for a cup of tea at ace because of its scrap weight being ally.


As far as im concerned with this whole conversion its not really any different to fitting a 6 manifold to an XSi, the extra power comes from being able to get more air in because of the larger throttle area.

I think alot of peoples issues are due to bad fitting. Apparently a badly fitted TPS can cause alot of issues like the backfiring through the bodies.

Finally I am primarily doing it for the noise and to prove that I can, if its a little faster at the end of it ill be really happy bunny

[C.A.R.]

Just to clarify, this is nothing like fitting a GTi6 manifold to an XSi.

Good luck dude

[Dum-Dum]

Just to clarify, this is nothing like fitting a GTi6 manifold to an XSi.

Sorry id forgotten that your an expert at fitting GTi6 bits and ruining a perfectly good 306. Maybe while you, who i doubt has done any serious research on this subject, tell me all about how its different you could also explain all about how to crash a GTi6 while driving like a lady garden in the pissing rain.

[Just Sean]

[Jimmyboycheck]

I think its the carb setup will be the tricky bit. with a gti6 manifold on a xsi the carb is diffrent yes but not such a dramaticly diffrent setup. I really hope you manage to get a reliable set up made for this and give me some pointers to do mine.

[C.A.R.]

Ooh touched a nerve there!

On a gti6 intake manifold 'upgrade' you are literally upgrading the manifold itself and the throttle pot, increasing volume/flow. In your case you are taking the inlet plenum away entirely and adding individual throttle bodies (ITBs) which yes, is entirely different.

Sorry to question your authority though, as I pressume you have done your research on this subject before shelling out any money on he setup. Interested to see what you do with the idle control and what you do about the various vacuum feeds on the current manifold for FPR and brake servo. I won't even mention the IAT sensor or the MAP sensor as you have clearly got it all sorted. And the inlet manifold runner length I guess you used the standard formulae to work out the length and didn't just cut it to suit...

[Jonny b]

Thing is car you can do all the research in the world and still not have a clue! The best way is to try, my bodies have been sat in the shed for 4 years while I get it all sorted, fair play to chris for trying loads have and failed! I hope he gets it done, the only thing I would do different is the management, but hey it's not my car, how's about a bit of encouragement for a change, or even some suggestions for said problems you mentioned

[Dum-Dum]

gti6 intake manifold 'upgrade' you are literally upgrading the manifold itself and the throttle pot

And thus you prove your lack of understanding on the technicalities of the whole subject as the throttle "pot" is the same on the 1.8, the 2.0 and the GTi6. 'Pot' being an abbreviation of potentimeter (sp) and the same Bosch item across all 3 models and thus not an upgrade on the GTi6 manifold at all.

As you can tell by some of my above posts yes I have researched before spending money, this is why my bodies fit perfectly without further spacing that can make them hard to balance at a later date (and is another reason alot of bike bodies conversoins are shit to get running right just off idle)

And as for the ICV, IAT and MAP yes I have it all sorted.

[kernow_joe]

can't see why this is 'bodgetastic'?!

good job mate, seems with gti tuning if its not a bought kit its not right in so many peoples eyes?!

[C.A.R.]

I do want you to succeed Chris but you really need to be less of a condescending twat with your posts.

How did you calculate the runner length and how will you control the throttle? What filter arrangement have you in mind?

Questions asked out of interest, but when you respond wih hostility it gives the impression you haven't thought about it at all.

With regards to my reference to throttle pot I was referring to the throttle body not the TPS, which in no way reflects any lack of understanding!

[samass]

Probably answered with hostility cuz generally speaking... You do like to stir...

[Niall]

TBH chris if this does work, great because its a cheap way of bodying a car instead of spending £££ on a manifold and mapping. I do know though that modern petrol engines (believe it or not, technologically the gti engine is quite a modern engine in comparison to others of its time) are so sensitive to changes like this. Think how many millions peugeot would of spent on designing their maps and management systems!
If this works, great and i will probably steer away from turboing my hybrid engine and bodying it but until i see it, im very sceptical!

[Dum-Dum]

I do want you to succeed Chris but you really need to be less of a condescending twat with your posts.

I need to be less of a condescending twat?!?!?!?!? Look whos talking. Pot calling Kettle mate.

How did you calculate the runner length? With an angle grinder lol, i measured the height of the bodies and filters, added a little for engine movement and then cut the manifold so that itd all clear the radiator.
How will you control the throttle? In the normal way of using the cable from the throttle pedal to the thingamy on the side of the bodies.
What filter arrangement have you in mind? 4 individual ones, not the ideal set up but one that is easy to implement and will work

Questions asked out of interest, but when you respond with hostility it gives the impression you haven't thought about it at all. Youve gotta fight fire with fire, your a dick, ima just prove that im the bigger dick. Its all thought about, Ive juet not written anything about it here cos i just wanted to tease with pics. Anyone whos seen the pile of bits will know.



With regards to my reference to throttle pot I was referring to the throttle body not the TPS, which in no way reflects any lack of understanding! Well if you meant throttle body you should of said throttle body not throttle pot which is something completely different. Thats like going into Tesco and asking for apples and expecting to get oranges because theyer right next to each other on the shelf. It does reflect a lack of understanding because if you understood youd of said it right first time.

Probably answered with hostility cuz generally speaking... You do like to stir...

Pretty much, was having a grumpy moment anyway and really wasnt in the mood for that lady garden

[1616six]

[samass]

:Lmao:
brilliant!

[Niall]

How did you calculate the runner length? With an angle grinder lol, i measured the height of the bodies and filters, added a little for engine movement and then cut the manifold so that itd all clear the radiator.

I think hes talking about the length seeing as different runner lengths make a difference to where in the rev range your gained torque is

[Dum-Dum]

I think hes talking about the length seeing as different runner lengths make a difference to where in the rev range your gained torque is

Im well aware of that and i was making the point (somewhat tactlessly) that the 6 likes them as long as possible and ive done my best to do that in the available space.

[Niall]

Fair enough. Ive never researched TBs on a 6 so dont know whats the best length for them.

Worst case scenario is you end up f*cking your engine from horrendous over fuelling but look at it this way, it will sound epic in the process!!

[spike2002]

Nice work mate always nice to see someone trying to suceed where others have failed. Keep us updated with progress and make sure you get plenty of pics exc. And if you pull it off get a guide up

[C.A.R.]

It's already got a decat has it not? So don't need to worry about f*cking that with too much fuel...

Right then Chris, can we start over?! I am genuinely interested in this setup and believe me I want it to work. How does the MAF work when there is no inlet plenum to measure from?

[cwspellowe]

What MAF? GTI6's don't use one, just a MAP.