displaying posts 51 to 72 of 72

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Author Subject: supercharger air feed
6waysforward

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Post #51
Well just to confirm....
I have just put my bmc cda on the car and its made no difference in terms of power loss/gain, throttle responce or noise etc.
Some thought it might be to constrictive as its enclosed.
Obviously without having it rr'd or having a afr gauge i cant tell if its made any difference to the way the car behaves.

I am assuming it would help with heat soak being enclosed but my car has never seen a track car park let alone the track so i have no real way of testing it.

Looks cool though Cool

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***Breaking*** Ph3 Silver GTI 6 High Boost Superman




Posted 11th Jan 2014 at 15:36
stan_306gti6 Forum Admin

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Post #52
clen666 wrote:
stan_306gti6 wrote:
Mine gives a perfect AFR on my gauge all the way through the rev range, in fact it goes fine all the way through as well, so there can't be much wrong with it's location or size.


But if its been custom mapped wouldn't you expect it to be?

There will only be enough fuel injected to suit the mass of air, so if the size/location of the filter is a restriction then there could still be improvements made, no?


I guess, but Rich made 540bhp with the same setup and the C38 charger can supply 600+bhp. Yes
Mine is restricted to 454bhp because I wanted it to stay in one piece for more than 10 minutes, that's not its peak performance that it is capable of. With the high boosts it may be different because you're chasing 400bhp, and 400bhp is the supply rating of the C30 charger so you're trying to maximise the potential.

However, seeing as my filter is in the same location and can supply 540bhp (should it be desired) I don't see what you low boost guys are worrying about. The location of the filter is not restricting your potential performance. As for high boost, you could experiment if you so desired, but I seriously doubt you'll find much improvement, especially if you have a badge less grill.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 11th Jan 2014 at 16:45
clen666

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Post #53
yeah true, hadn't taken it into consideration that Rich made 540bhp!

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Team 'unintentional rat look'
Posted 11th Jan 2014 at 16:58
marco gti6

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Post #54
Well what i have found is that my ca when starting from cold it starts right away and withou any problems. But once the car is up at 90°C and lets say you go to the gas station to fill it up it will struggle to start which I think is down to the location of the airfilter and the hot air inside the engine bay.

I personally think that there is a lot of room for improvement induction wise. So i came up with this little project of mine:

http://www.talkcomposites.com/8567/Hello-everyone

This dummy is a little to long so i will make a new one out of moulding foam and finally make it out of fibreglass and laminate it with carbon. The box has enough room to take the original K&N filter on the LB conversion. Still i have been thinking about adding a velocity stack to the filter element.

Last but not least some will notice that the design i made is open on the top. Why because it could either be closed with a foam core carbon sheet or with an opening to get air from outside into the box via one of these:

http://www.carbonmods.co.uk/Products/Carbon-Fibre-NACA-Vent__CMNACAMID01.aspx

Unfortunately i lost my models that i had made in google SketchUp.

Any input will be greatly appreciated of
Posted 11th Jan 2014 at 22:39
clen666

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Post #55
That looks good, hopefully you can complete the project Thumbs up

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Posted 11th Jan 2014 at 23:06
marco gti6

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Post #56
Will do just need to stop being a lazy f**k and start turning the ideas in reality and update my project thread as well LOL
Posted 11th Jan 2014 at 23:27
buzzbrightyear

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Post #57
There's always ways to improve things, nothing's perfect, the conversions are good yes but they are not absolutely perfect, they wasn't designed with a unlimited budget, they was designed to do it affordably so people can still afford to do it.
once the standard conversion kits are fitted there's a lot of ways to improve them still, it just depends on if you want to spend more cash and time.

Stan Improving it doesn't have to solely focus on more bhp, every time somebody mentions a improvement there you go with your "my car makes 454bhp so the kits are perfect"
There not perfect juat like every single new car that is affordable for the average person has it's faults, the cars that are faultless or are better than the average cost more than most people can afford.
get out of the dream, the kits are good value for what you get but there's a lot more improvements to be made if your willing to put the time and cash in.

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 12th Jan 2014 at 10:29
buzzbrightyear

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Post #58
I know for a fact mines not perfect and it's far from it, either I have much higher standards than Stan or mine was thrown together.

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 12th Jan 2014 at 10:31
clen666

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Post #59
To be fair to Stan I don't think he's claiming his car or indeed the kit is perfect, just that he's happy with the power his makes and doesn't see the need to chase more, as you say it becomes ever increasing costs for ever diminishing gains

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Posted 12th Jan 2014 at 11:24
stan_306gti6 Forum Admin

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Post #60
Andy - I'm not saying it's absolutely perfect, although to be honest I can't see anything on it which I'd want to improve.
The car is faultlessly reliable, delivers the power I need/want, is always consistent and I don't suffer the issue of heat soak which some people claim they find a pain.

Having 'slightly' cooler air entering through the inlet is going to give you more power and *slightly* better throttle response. I find both of these are plentiful as they are and I don't see a 'need' as such to improve this. I'm sure you can, there must be endless possibilities for doing so, but really if 450bhp in a reliable 306 isn't enough, I'm struggling to think what else you would realistically want. Dunno

All I know is I'm happy with my package and improvements will be very minimal I'd think. However, good luck to those who try and find a better solution, there's always something which can be made better. Smile

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 12th Jan 2014 at 12:09
pete-gti

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Post #61
All I'm aiming to do is get cooler air to the filter, which can only help
Posted 12th Jan 2014 at 15:13
stan_306gti6 Forum Admin

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Post #62
You'll probably achieve that with a new design from standstill, but I still have reservations whether or not it will make any difference once rolling especially if the grill is badge less.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 12th Jan 2014 at 15:16
pete-gti

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Post #63
If you can get a direct cold air feed, it can only improve things even when moving, even with badge less grill its still not direct air on filter, I'm thinking of the tiny scoop on bonnet above filter, might not look the best but surely will improve things
Posted 12th Jan 2014 at 21:25
aaron6

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Post #64
Heres the rough idea of whatid planned for stillys low boost. As I say, I had all the nessersary dimensions but thats long gone. Cant see why it wouldnt improve things.

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See the sheer power and might of the lesser known burrowing owl.



Posted 14th Jan 2014 at 15:52
pete-gti

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Post #65
Would improve things not that bad of design, think I'm gona down route of scoop in bonnet, get it rolling roaded and see difference, and run badge less grill, I made 252 with it being standard
Posted 14th Jan 2014 at 20:17
aaron6

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Post #66
If I were you id make the scoop the inlet for a similar airbox to what ive drawn.

________________________________________

See the sheer power and might of the lesser known burrowing owl.



Posted 14th Jan 2014 at 21:03
pete-gti

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Post #67
Yea be interesting in rolling road results
Posted 14th Jan 2014 at 22:47
aaron6

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Post #68
Be nice to see an improvement for something so simple.

________________________________________

See the sheer power and might of the lesser known burrowing owl.



Posted 15th Jan 2014 at 07:11
marco gti6

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Post #69
Aaron what would you be making this out of? Material wise? Have you considered heat soak to the box itself? Also wouldn't a round shape be beneficial for airflow instead of a boxlike one?
Posted 15th Jan 2014 at 08:34
aaron6

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Post #70
Thin stainless was my plan. Was a thought for more power, not to stop heat soak. Id improve it during manufacture as I made it. Heat soak shouldnt be to bad as the baffle spaces it away from the engine anyhow. But could be made from anything. I just happen to have a lot of stainless at work

________________________________________

See the sheer power and might of the lesser known burrowing owl.



Posted 15th Jan 2014 at 10:16
marco gti6

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Post #71
I'll keep an eye on this thread Wink
Posted 15th Jan 2014 at 17:05
aaron6

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Post #72
When we get a chance, im sure me and Armzs16 will fabricate something. Be nice to do a RR with and without the box to se a direct comparison. It'll be a while yet though before he starts the work going high boost.

________________________________________

See the sheer power and might of the lesser known burrowing owl.



Posted 15th Jan 2014 at 18:43

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