Club G40 Forum

Technical => Engine and Transmission => Topic started by: samuel.cole on October 09, 2013, 05:04:04 PM

Title: g40 itb's!
Post by: samuel.cole on October 09, 2013, 05:04:04 PM
hello one and all!

after looking for power options on the g40 found these:

http://www.bar-tek-tuning.com/lshop,showdetail,2430,en,1381334529-2445,1138132527.motorenansaugunginductioninlet,2140097,4,Tshowrub--1138132527.motorenansaugunginductioninlet,.htm

i know bodies dont make a huge difference but thinking into it!

questions are: are they worth it? what else would i need to run these i assume an aftermarket ecu.

cheers
Title: Re: g40 itb's!
Post by: Jezza-7 on October 09, 2013, 06:32:20 PM
A lot of money though. I would personally get in touch with them and ask if they have ever had/or know of a g40 running with that setup.
Title: Re: g40 itb's!
Post by: samuel.cole on October 10, 2013, 02:38:02 AM
ive tried, no reply though :/

so i asked on here!
Title: Re: g40 itb's!
Post by: sparkz786 on October 10, 2013, 05:45:19 PM
http://www.clubpolo.co.uk/forum/index.php?showtopic=207034

Is this Lances G40 with itbs? Making 260 horses????
Title: Re: g40 itb's!
Post by: sparkz786 on October 10, 2013, 05:47:54 PM
http://www.clubpolo.co.uk/forum/index.php?showtopic=207034

Is this Lances G40 with itbs? Making 260 horses????
Title: Re: g40 itb's!
Post by: samuel.cole on October 10, 2013, 10:27:11 PM
seen it but not that much info on it..
Title: Re: g40 itb's!
Post by: gaz g40 on October 11, 2013, 07:15:09 AM
Just ask lance then. Hes a sound fellow! All home built aswell that car it awesome
Title: Re: g40 itb's!
Post by: Matty! on October 11, 2013, 09:02:59 AM
Looked at these, thought they could be cool, just couldnt work out how they would dump the pressure like how the standard G40 TB works.
Title: Re: g40 itb's!
Post by: Jezza-7 on October 11, 2013, 02:04:04 PM
Might have to make sort sort of diverter valve.
Title: Re: g40 itb's!
Post by: petegt on November 11, 2013, 08:16:12 PM
Im sure it would be a great upgrade but always failed to see how companies charge soooooooooooooooo much for these kinds of set ups. It would be cheaper to get appropriatly sized itb's from a motorbike costing around £30-80 and fabricate the rest, ally manifold and plenum etc for fractions of the cost and exactly the same end result.

At the end of the day a throttle body is just a valve so why should they cost 100's each unless they are made of solid gold!

Currently in the process of putting my gt on throttle bodies with custom mapped digifant. Gone for small bodies (33mm)and a plenum with long velocity stacks.

According to the jenvy website 33mm bodies should be capable of about 33bhp (@9000rpm) per cylinder equating to a possible 132bhp before they become restrictive.

That set up is literally going to cost me about £100 as im fabricating all the parts myself. 
Title: Re: g40 itb's!
Post by: Etches on November 12, 2013, 05:52:04 PM
Ask Yoof about throttle bodies and GT digifant, from what I remember reading in his build he got it to work. But couldn't refine it enough for it to be decent. I'm sure he will correct me though  ;D
Title: Re: g40 itb's!
Post by: scotsjohn on November 12, 2013, 08:08:37 PM
What's your existing set-up and output Sam? May be cheaper power available unless you're pretty well maxed out with what you've got.
Title: Re: g40 itb's!
Post by: petegt on November 12, 2013, 10:59:45 PM
Quote from: Etches on November 12, 2013, 05:52:04 PM
Ask Yoof about throttle bodies and GT digifant, from what I remember reading in his build he got it to work. But couldn't refine it enough for it to be decent. I'm sure he will correct me though  ;D

Cheers yeah Iv seen that build and noted where improvements can be made. I'm not sure on how much was actually done to try to refine this set up but hopefully mine should work quite well. Just got to fabricate manifold with injector mounts, fit hoses and fab a bracket to hold tps.

Will post a thread once im done probably!
Title: Re: g40 itb's!
Post by: polo classic on November 19, 2013, 08:11:53 PM
Personly I would rather look into a fabricated manifold with larger plenum, and only if you have at least 1341 cc...
Title: Re: g40 itb's!
Post by: Tav on November 23, 2013, 12:01:13 PM
Stand alone management needed really, that's expensive!

No really need for ITB's with boost.  None of the OEM's do it?  I reckon you'd be better spending your money strapping on a 16v head and getting some custom pistons made.  Get rid of the 8v restriction.

Or...being happy with what you have and just enjoying the car? 
Title: Re: g40 itb's!
Post by: Yoof on November 23, 2013, 03:52:51 PM
Quote from: Tav on November 23, 2013, 12:01:13 PM
Stand alone management needed really, that's expensive!

No really need for ITB's with boost.  None of the OEM's do it?  I reckon you'd be better spending your money strapping on a 16v head and getting some custom pistons made.  Get rid of the 8v restriction.

Or...being happy with what you have and just enjoying the car? 

ITB = £££

Nissan have done it in the past, but with boost you rarely need to optimise every parts of the induction system.

Could use standard management too, no reason why not. 
Title: Re: g40 itb's!
Post by: samuel.cole on November 24, 2013, 11:11:16 AM
hmm! im just after that 20 more bhp!

i wont mind aslong as it will take a 1.8t mk1 golf up too hundred! :D
Title: Re: g40 itb's!
Post by: Jezza-7 on November 24, 2013, 12:28:57 PM
Or you could but lance's car with itbs and turbo already on it.