Throttle Bodies questions - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

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Subject: Throttle Bodies questions

jammapic

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Location: Manchester

Registered: 11 Jun 2010

Posts: 778

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Post #1

Hi all,

I'm mocking up a few bits to mount some throttle bodies on my motor and have Wayne at Chip Wizards map it all on the stock ECU.

I'm now aware of the fact we don't need the MAP or ICV, so that opens up a lot of options with bodies to use as I can rip those out and get Wayne to map it without.

Question is - what size would you go for? Common seems to be 45mm or 48mm?

Any ideas?

JP

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306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 18:46

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bigbadbowen

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Location: Winchester

Registered: 21 Nov 2003

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Post #2

45s dude

Posted 2nd Jul 2013 at 18:47

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jammapic

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Location: Manchester

Registered: 11 Jun 2010

Posts: 778

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Post #3

48s too big?

What about runner length? or can I tune it with trumpets?

JP

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HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 18:49

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #4

45's fine for your engine Thumbs up

total tract length you want around 380 mm iirc, better to get a Satchell inlet and adjust the trumpet lengths afterwards, I do believe sandy had better results with a straighter tighter radius trumpet too not the off the shelf Jenveys.

or are you making your own bike body inlet?

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Posted 2nd Jul 2013 at 18:53

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bigbadbowen

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Location: Winchester

Registered: 21 Nov 2003

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Post #5

48s will loose you power lower down so deffo 45s

Just start with a bog standard longmans/jenvey manifold and see how it goes Yes

Posted 2nd Jul 2013 at 18:54

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jammapic

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Location: Manchester

Registered: 11 Jun 2010

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Post #6

That's the idea... Can't justify the eye watering price of the jenveys!

There was a satchell set on here for sale but the guy hasn't got back to me annoyingly!

JP

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HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 18:54

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #7

Jenveys aren't that much Unsure

£380 for the set I bought, but there's the rail, inlet and trumpets on top of that of course Doh

Drop Baz a PM on here https://www.facebook.com/BluprintAutosport

if you know someone who can tig and machine for you cheaply then doing the bike body thing will be a fair bit cheaper, bit of flat plate welded on the end of a cut down std manifold with stepped holes and the ITB's clamped down securely is the way to do it.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 2nd Jul 2013 at 19:02

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jammapic

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Location: Manchester

Registered: 11 Jun 2010

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Post #8

That Baz guy is the one who had the Satchell ones for sale, sent a bunch of messages... no reply Sad

What are typical power gains with a set of bodies on?

JP

________________________________________

HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 19:05

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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

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Post #9

jammapic wrote:

What are typical power gains with a set of bodies on?

Around 15bhp, much more available with cams to go with them. Yes

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Posted 2nd Jul 2013 at 19:07

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jammapic

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Location: Manchester

Registered: 11 Jun 2010

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Post #10

Brilliant.

Thanks Stan.

Be nice to crack 200hp N/A power. Never done big power N/A before. All new to me! Smile

________________________________________

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306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 19:08

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welshpug!

Capt Pedantic

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Registered: 27 Mar 2007

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Post #11

With the Satchell inlet its a fair bit more gain than the bolt on Jenvey manifold, to crack 200 you will need more duration of course.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 2nd Jul 2013 at 19:17

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jammapic

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Location: Manchester

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Post #12

Noted mate, thanks.

If you guys see any sets up for sale - can you let me know ASAP? Got an itch to scratch that no cream will cure ;-)

JP

________________________________________

HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 19:19

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #13

https://www.facebook.com/photo.php?fbid=426278367431057&set=a.184128594979370.48284.183148731744023&type=1&theater

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 2nd Jul 2013 at 19:33

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #14

http://www.306gti6.com/forum/showthread.php?id=150979

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 2nd Jul 2013 at 19:34

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jammapic

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Registered: 11 Jun 2010

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Post #15

Interesting stuff mate, thanks. Pricey though! I'd imagine a lot of that is ECU and mapping however, which I don't need!

________________________________________

HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 19:37

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #16

indeed it would be, and loom making, I was more highlighting the higher gains over the Jenvey manifold.

I think I'm in at about £1200 so far as I've made my own loom and got an ecu second hand but unused, but the rest is new.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 2nd Jul 2013 at 19:40

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jammapic

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Location: Manchester

Registered: 11 Jun 2010

Posts: 778

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Post #17

So using the stock ECU and thus the stock loom, which is my plan, will alleviate those costs. What do you reckon the bodies / mani etc have cost you?

________________________________________

HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP

Posted 2nd Jul 2013 at 19:42

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miles

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Post #18

Std 6 engine you see around a 7bhp increase with the old Jenvey set up, use the long inlet manifold and you can get around the 185 mark, shows you how compromised the Jenvey one is

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Posted 2nd Jul 2013 at 22:54

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JWP EFi

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Post #19

cams, pockets and map see us knocking on the door of 200bhp.

Posted 2nd Jul 2013 at 23:03

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maddriver9

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Post #20

Had 48s with 90mm trumpets, jenvey inlet and piper 275 inlet cam made 214bhp but that was in a 205 with decat also.

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Posted 5th Jul 2013 at 23:37

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allanallen

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Post #21

Thought this was already running on an aftermarket ecu and cams?

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Posted 6th Jul 2013 at 08:07

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