Saxo Engine/Performance If you're interested in tuning Saxo engines, or if you need to know something which is engine related... this is the place for you. |
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23rd February 2009, 17:16
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#81
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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until you have held a original one and a ported and polished one in both your hands next to each other you cant say anyhing. I have and can see where the ported and polished one has been ground down. And until you have fitted one to your car you cant say it does nothing.
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23rd February 2009, 17:17
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#82
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Infrequent Poster
Join Date: Oct 2008
Posts: 152
Car(s): MK2 vtr saxo in silver
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Quote:
Originally Posted by luthor1
I think it's important to test a standard throttle body against the ported and polished one, as long as the standard one is *THOROUGHLY CLEANED* first and de-gunked.
I wonder how much of the noticed improvement is because the TB is lovely and clean?
I cleaned out mine recently as it had loads of gunk in it, and afterwards there was amuch crisper feel to it, so bear this in mind.
Andy
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i agree... i can see there being much in it on a stock car.
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23rd February 2009, 17:19
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#83
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Saxperience Addict
Join Date: Nov 2006
Location: A farm shed in Aylesbury
Posts: 14,916
Car(s): Corolla AE86
Peugeot 205 B18C (in bits)
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Quote:
Originally Posted by luthor1
I think it's important to test a standard throttle body against the ported and polished one, as long as the standard one is *THOROUGHLY CLEANED* first and de-gunked.
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I agree Andy that you'd have to test like for like
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23rd February 2009, 17:25
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#84
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Saxperience Addict
Join Date: Nov 2006
Location: A farm shed in Aylesbury
Posts: 14,916
Car(s): Corolla AE86
Peugeot 205 B18C (in bits)
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Like I said, we will do an unbiased RR. We dont sell this item or have the manufacturing facilities to do anything similar so its no interest to us whether this makes a gain or not.
I personally see no point to modifying the throttlebody as thats not the restriction in my eyes but the throttleplate spindle removal could let a tiny bit more air in. Whether theres any difference I am happy to check out.
Kev
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23rd February 2009, 17:26
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#85
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Infrequent Poster
Join Date: Oct 2008
Posts: 152
Car(s): MK2 vtr saxo in silver
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Quote:
Originally Posted by SaXo_vtr123
until you have held a original one and a ported and polished one in both your hands next to each other you cant say anyhing. I have and can see where the ported and polished one has been ground down. And until you have fitted one to your car you cant say it does nothing.
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im not an idiot, i work at bikes for a living and race myself.
im well aware of the differences i have removed the flash from many carbs, aswell as the half a spindle changed the shape of the butterfly to aid WOT air flow and polished them.
I dont want an argument.. i was just trying to find out what had been done... as by the fact he had said "ported" i for some reason assumed he was making the venturi bigger not just removing flash,polishing and cutting away half the spindle.
Trevor
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23rd February 2009, 17:29
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#86
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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KAM if you do the RR let us know of the results.
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23rd February 2009, 17:30
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#87
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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Quote:
Originally Posted by TrevorRS
im not an idiot, i work at bikes for a living and race myself.
im well aware of the differences i have removed the flash from many carbs, aswell as the half a spindle changed the shape of the butterfly to aid WOT air flow and polished them.
I dont want an argument.. i was just trying to find out what had been done... as by the fact he had said "ported" i for some reason assumed he was making the venturi bigger not just removing flash,polishing and cutting away half the spindle.
Trevor
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Just out of interest what is a "WOT"??
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23rd February 2009, 17:30
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#88
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Frequent Poster
Join Date: Jul 2008
Location: Skelton - Saltburn
Posts: 826
Car(s): 306 GTi-6 / Saxo VTS
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Fair one
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23rd February 2009, 17:38
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#89
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Infrequent Poster
Join Date: Oct 2008
Posts: 152
Car(s): MK2 vtr saxo in silver
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Quote:
Originally Posted by SaXo_vtr123
Just out of interest what is a "WOT"??
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Wide Open Throttle
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23rd February 2009, 18:32
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#90
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Frequent Poster
Join Date: Aug 2008
Location: Herts
Posts: 700
Car(s): 2001 VTR
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Fair play from Spencer, he has the pics to show you what he is doing. £26 is a fair price for the labour involved. Decreasing the frontal area of the throttle spindle is a delicate job but yields significant results, along with knife-edging. Induction wise, removing obstructions helps to make the air flow unformly, minimising the deceleration of air flow through the TB.
Check out some old-skool power tuning books. Vizard a-series, pinto...
On the other hand, if you have the time and patience and experience not to c0ck up your TB with the dremel and you enjoy being hands on then great.
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23rd February 2009, 18:45
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#91
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Saxperience Forum Bum
Join Date: Sep 2008
Location: jarraaaaaaaaaa
Posts: 3,580
Car(s): Mk2 16v VTR + Nitrous
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Quote:
Originally Posted by KamRacing
Like I said, we will do an unbiased RR. We dont sell this item or have the manufacturing facilities to do anything similar so its no interest to us whether this makes a gain or not.
I personally see no point to modifying the throttlebody as thats not the restriction in my eyes but the throttleplate spindle removal could let a tiny bit more air in. Whether theres any difference I am happy to check out.
Kev
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That would be interesting if you could. I should be fitting mine later on this week
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23rd February 2009, 19:15
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#92
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Established Member
Join Date: Oct 2007
Location: Yorkshire.
Posts: 1,748
Car(s): White 106 Gti
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made no diffrence at all on my car imo.
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23rd February 2009, 19:19
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#93
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Yorkshire
Join Date: Apr 2008
Location: Brighouse, W. Yorks
Posts: 3,699
Car(s): Citroen C4 VTR Coupe
Porsche 924
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Quote:
Originally Posted by Groomster-VTS
made no diffrence at all on my car imo.
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+1 the only difference is my car seams to like the golden nectar a little more
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23rd February 2009, 19:22
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#94
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Saxperience Post Whore
Join Date: Nov 2007
Location: skipton northyorks
Posts: 5,275
Car(s): clio 172 exclusive track toy
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i had one on and wayne at chipwizzards said they give 3bhp max , but didnt feel any different to me
__________________
getting the body you want is enough motivation
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23rd February 2009, 21:30
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#95
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Saxperience Forum Bum
Join Date: Nov 2005
Location: MEASHAM United Kingdom (England)
Posts: 3,445
Car(s): 257bhp Ibiza Cupra Turbo
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its not just a polish with motal polish and then half the spindle.
there are various stages in the process and i spend around 1.5 - 2 hours on each one. its an industrial dye grinder that i use along with a milling machine, various grinding wheels, flap wheels and a selection of small files. the throtlebody is totally dismantled and put back together with the butter flu being removed from the body while the process is carried out.
i firstly mill it out to a desired radius upto the spindle. then i knife edge the opening rim and very gradually chamfer the opening in towards the throttlebody and remove any ridges/steps present. its then a matter of machining the front half of the spindle and grinding down the screw ends. after this i go round the whole of the throttlebody with a flap wheel and small file to take away any other sharpe edges left on the spidle and the rest of the opening.
then its a matter of using various flap wheels & wet & dry wheels along with cutting paste to give a mirror finish.
so no its not just cutting the spindle and cleaning the throttlebody up.
gains are had by making less of an obsticle for the air to pass through and these give you better MPG under normal driving conditions because you dont have to be so heavy on the throttle to get the required power to pull the car.
NOTORIOUS_CAT HAD a ported TB and a standard tb off me for a vts to do a back to back test. if interested contact him as he was going to post up the results.
__________________
THROTTLEBODY PORT & POLISHING SERVICE £30 pm me if interested
Last edited by spencer_cammedvts; 23rd February 2009 at 21:32.
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24th February 2009, 13:57
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#96
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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All the people saying it made no difference, i dont see how not, i can feel the difference, before i fitted mine i went out and drove around for 30mins, then fitted it and went back out and could tell the difference. Its not that noticable, just consentrate and you will notice that you dont have to push teh accelerator as much.
Anyway spencer as i have said i rate you service very highly!
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24th February 2009, 16:35
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#97
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Saxperience Forum Bum
Join Date: Nov 2005
Location: MEASHAM United Kingdom (England)
Posts: 3,445
Car(s): 257bhp Ibiza Cupra Turbo
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go out with the ported one on, then try putting the standard one on and going for a blast. you can tell a big difference
__________________
THROTTLEBODY PORT & POLISHING SERVICE £30 pm me if interested
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24th February 2009, 16:37
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#98
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Forum Section Moderator
Join Date: Aug 2008
Location: Liverpool
Posts: 15,517
Car(s): Saxo VTR
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Quote:
Originally Posted by spencer_cammedvts
go out with the ported one on, then try putting the standard one on and going for a blast. you can tell a big difference
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exactly what i was going to say, and i did do that, you do feel the difference.
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24th February 2009, 21:57
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#99
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Saxperience Forum Bum
Join Date: Sep 2008
Location: jarraaaaaaaaaa
Posts: 3,580
Car(s): Mk2 16v VTR + Nitrous
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cant wait to bang mine on then
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24th February 2009, 22:50
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#100
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Saxperience Forum Bum
Join Date: Nov 2005
Location: MEASHAM United Kingdom (England)
Posts: 3,445
Car(s): 257bhp Ibiza Cupra Turbo
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i posted it today mate 1st class recorded so will be there tomorrow
__________________
THROTTLEBODY PORT & POLISHING SERVICE £30 pm me if interested
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