Author Topic: 154bhp upgrade???  (Read 4891 times)

Offline AdzCM

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Re: 154bhp upgrade???
« Reply #15 on: March 28, 2010, 09:43:26 pm »
aw ragin :(  £80 seemed unreal.

jezza-7 .... wot diameter is that piping you used for your air filter? - does it just connect straight to the charger with a jubilee clip?

Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #16 on: March 28, 2010, 09:48:54 pm »
If you want i will measure the filter outlet cause its a real good K&N one, and i will measure the bend. I think it cost about £15 to get made up, the black pipe is jubliee'ed on to an inlet collar which is bolted on to the charger. Will get some pics and that so you can see as well as measurements, will do it tomorrow.

Offline AdzCM

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Re: 154bhp upgrade???
« Reply #17 on: March 28, 2010, 10:42:37 pm »
That would be unreal mate, thanks, hope its not too much bother.

Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #18 on: March 30, 2010, 06:30:58 pm »
weather was crap yesterday and today was a little better so i went out today and took it off for measurments.

These measurements are internal

Air Filter - 75mm
Alloy bend - 72mm
Rubber bend - 74mm
Inlet collar outer diameter is 75mm

So its inlet (75mm)--->Rubber bend (74mm)--->Allot bend (72mm)--->Air filter (75mm)

It all fits well and i use s/s jubliee's that are done up tight.

The bend angle's are like 90 degress but have taken sum pics to see.















Hope this helps

« Last Edit: March 30, 2010, 07:04:23 pm by Jezza-7 »

Offline hardchargin40

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Re: 154bhp upgrade???
« Reply #19 on: March 30, 2010, 07:03:25 pm »
 :o Get that charger inlet ported! :o ;) :D







Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #20 on: March 30, 2010, 07:04:56 pm »
No need to, i have a full blend to go on!

Offline AdzCM

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Re: 154bhp upgrade???
« Reply #21 on: March 31, 2010, 03:04:07 am »
cheers man, thats unreal lookn ;) - where did u get the inlet collar? can you buy that heat shield separate from jabbasport? i was havin a nosey on ebay at k&n filters, n that piping shouldnt be too hard to get.

also see your on about a full blend charger - im lookn my charger rebuilt soon, would you reccommend i get a full blend? & why?

sorry about all the q's lol im learnin as i go - really appreciate the photos btw, thanks.
« Last Edit: March 31, 2010, 03:44:12 am by AdzCM »

Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #22 on: March 31, 2010, 05:47:05 pm »
No worries, i got my inlet collar from a mate but there really expensive if you buy them new from jabba.

I can sell you one as i have 2. Will pm you details.

I have a full blend purely for extra boost which will increase bhp as the porting of the inlet, outlet and internal parts allows more air to be sucked in and forced out throughout the air flow system but im not sure how much of a difference it would make on a standard pulley size of 75mm, but i have a PSD toothed kit to go on at the same time, and that pulley size is 65mm and will increase boost pressure.

Now i cant remember this but a 65mm pulley will spin alot quicker hence it being smaller but there is a figure for how fast then spins depending what the engine revs are. Will try find it.

The heatshield shoul be easy to get hold of. I think there £20 from jabba, give them a call and ask to speak to brian and ask him.




Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #23 on: March 31, 2010, 05:55:14 pm »
A little bit more info

Stock supercharger pulley is 75mm so 65mm one makes it spin 75/65 times faster. Normal peak pressure is about 1.7 bar absolute (i.e. 0.7 bar boost above atmospheric pressure) so the smaller pulley gives you about 1.7 x 75 / 65 = 1.96 bar absolute or around 1 bar of boost. Get a boost gauge if you haven't got one and you should see 1 bar as you get close to the red line if everythink is working OK. The 65mm pulley is about the smallest you want to go. A small pulley makes more difference to tuning a G40 than anything else and will increase torque across the whole rev range rather than just peak power.

Offline AdzCM

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Re: 154bhp upgrade???
« Reply #24 on: March 31, 2010, 07:08:11 pm »
thanks again mate - that toothed kit is pretty expensive - u get a psd kit?

im looking to put serious money/time into my G now that i just sold my corolla :D

pm'd u btw ;)

Offline Jezza-7

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Re: 154bhp upgrade???
« Reply #25 on: March 31, 2010, 07:20:03 pm »
Yeah i got a PSD kit. I paid £200 for mine.

Someone is selling a kit that is a PSD replica which i think would be ok. All the same at the end of the day.