People with already throttle bodied engines

1. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #1 14th September 2009, 21:38

   I am asking people who have already done this conversion as i am looking to buy the parts seperatly, i have a good mechanical ability being a maintenance technician and all to fit the parts but would like a run down of parts needed to convert a mk1 silvertop single plug 90bhp engine.
   
   Please no suggestions like change engines or telling me its not worth it.
   
   From what i have read on the forums i need the following:
   
   Twin carburetters
   Inlet Manifold
   Diesel Throttle cable as petrol one is not long enough
   Standalone ECU (Predator Maybe?)
   
   Anything i have missed? Any HELPFUL input would be greatfuly appreciated, I kno there are some good tuners out there, i saw your cars at Trax 09!
2. Matt67 Saxperience Forum Bum Joined: Aug 2008 Kent Posts: 2653 1.6 16v C2 GT

   #2 14th September 2009, 21:40

   Carbs? Whats wrong with ful injection?
3. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #3 14th September 2009, 21:42

   Go for fuel injection - I fitted my Throttle bodies - check out my progress thread for a few pic's
4. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

   #4 14th September 2009, 21:43

   either bike bodies with a manifold made to fit, or find a off the shelf kit.
5. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #5 14th September 2009, 21:47

   Not being sarcastic but isnt fuel injection what i have already?
6. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #6 14th September 2009, 21:48

   Also i had problems finding a kit off the shelf, looked at jenvey inlet manifolds but they seem to have one for every engine bar the vtr, have i overlooked something?
7. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #7 14th September 2009, 21:48

   a bit of reading up on throttle bodies wouldn't go amiss if your unsure of the advantages of fitting multiple throttle bodies
8. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #8 14th September 2009, 21:48

   Quote:

   Originally Posted by Deano_Blad Not being sarcastic but isnt fuel injection what i have already?

   yes but you listed carbs in your parts
   
   throttle bodies and carbs are 2 different things
9. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #9 14th September 2009, 21:54

   Ok sorry, i always took them as same thing, i blame listening to too many noobs, my bad. So if i purchased some bike throttle bodies and a matching manifold, got a longer throttle cable and an unlocked ecu wud i be far off them working?
10. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

    #10 14th September 2009, 21:59

    Quote:

    Originally Posted by Deano_Blad Ok sorry, i always took them as same thing, i blame listening to too many noobs, my bad. So if i purchased some bike throttle bodies and a matching manifold, got a longer throttle cable and an unlocked ecu wud i be far off them working?

    standalone ECU & loom (depending on ECU) fuel rail, fpr (maybe) air filter, wilder cam (to make the throttle bodies worth while), adjustable pulley, mapping . . . . . . . a lot of ££££
11. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

    #11 14th September 2009, 21:59

    youd still need a proper standalone ecu to run them
    
    but yea bike throttle bodies can work quite well
12. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

    #12 14th September 2009, 22:07

    I already have a mild, but better than standard, kent pt40 cam, the remap and ecu i would be getting anyway. Would i need a fpr? most people seem to go for the vtr one anyways? What would i gain from a fuel rail and what good would an adjustable pulley do? Was hopeing not needing to take the head off again
    
    Also have a frowned apon 57i Induction kit
13. user_16747 Banned Joined: Jul 2007 Posts: 4328

    #13 14th September 2009, 22:11

    As said carbs and bodies are totaly different.
    Carbs are old skool cool and far less complicated.
    Amount of fuel used is alterd by jets and needles.
    Hard to keep in balance and thus working correctly
    but dont require an ecu to make them work.though you may need one to work the coils.
    Tb use one or two injectors per cylinder and have one butterfly per cylinder allowing far better mixing of air and fuel thus better atomisation.
    Tract length and angle are adjustable to some extent and can be done to play around with torque and bhp figures though its not cheap to do and may require the scuttle to be cut.
    An ecu is required to control duty cycle and spark etc.
    As for where to go try bogg brothers who do kits for most cars these days.
14. user_16747 Banned Joined: Jul 2007 Posts: 4328

    #14 14th September 2009, 22:14

    Pulley would allow fine tuning of cam timing to get the optimum power.
    57i wont fit with itbs!
    Unless you go down the route of haveing a chamber made to go over them with a single inlet.which kind of defeats the object
15. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

    #15 14th September 2009, 22:18

    Quote:

    Originally Posted by Deano_Blad I already have a mild, but better than standard, kent pt40 cam, the remap and ecu i would be getting anyway. Would i need a fpr? most people seem to go for the vtr one anyways? What would i gain from a fuel rail and what good would an adjustable pulley do? Was hopeing not needing to take the head off again Also have a frowned apon 57i Induction kit

    Your engine would get fuel - that's what you'd gain from a fuel rail . . . . . .
    
    IMHO phone some reputable tuning companies and ask them to quote you prices for the parts needed
16. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

    #16 14th September 2009, 22:22

    Ok Thanks alot guys, is there any chance of me hitting vts style figures with these? I really dont want to go down the route of a 16v engine to get decent figures. I am taking it that throttle bodies are easier to fit/buy than a turbo conversion?
17. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

    #17 14th September 2009, 23:45

    You won't need the K&N as you'll be using a different type of filter for the TB's.
    
    A predator ECU will run bike bodies and pretty sure they're £495 inc on the road mapping.
    
    I wouldn't want to pluck bhp figures out of my ass but I'd assume that if your engine is in good condition etc etc and you do it properly, you should be running about VTS power.
    
    You could do a home made turbo conversion in a Sophia_Bush style, but imo bike TB's is a more trusted route to take on the 'cheap', as opposed to a home brew turbo effort.
18. user_10176 Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)

    #18 15th September 2009, 13:38

    well there alot of kit out there!!
    
    sound like you need to do alot more reseach into this, just ring a few different companys like GMC,
    
    they will help you alot!! and explain everything!
    
    andy