Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Give/Need advice to/from others >> what easy / cheap mods to BOA 24v
        
(Message started by: myrs200 on Sep 8^th, 2009, 6:21pm)

Title: what easy / cheap mods to BOA 24v
Post by myrs200 on Sep 8^th, 2009, 6:21pm

Hi
I have purchased a BOA 24v motor to fit in my TVR ;D
apart from removing the power steering and aircon pumps and the viscous fan what other mods are/should be done?
The exhaust will not have cats but have not decided on dia size - car to be used in competition so need to be less than 100dB
I have posted in wanted for a 2.0 ltr diff

what safe (ish)max revs for this motor?

Title: Re: what easy / cheap mods to BOA 24v
Post by Highlander on Sep 8^th, 2009, 6:27pm

Hi and welcome to the site :)

The BOA was fitted to the Granada -94

The Scorpio 95 - 98 which this site is dedicated to is fitted with the BOB 24v

There are a few guys on here with BOA experience but you may get more luck here :

http://www.granada-and-scorpio-online.com/

This is a good site for BOA mods info :

http://www.granada-and-scorpio-online.com/

Title: Re: what easy / cheap mods to BOA 24v
Post by pinto on Sep 9^th, 2009, 8:00pm

BOA motor has a few quick and reletively cheap modifications you can do - but anything more serious will cost you £££££'s as there arent many aftermarkets parts out there for them.

Start with a decent exhaust and cone filter - but make sure you pipe cold air to it or its a total waste of time. Next up is to replace the standard scorp injectors with those from the 2.5 Vectra - better spray pattern and more efficient, hence give a few more BHP. There are ECU chips available too - usually give a nice torque boost (up to +20%) but not a lot in the BHP area. Thats about all you can do in the vein of bolt on stuff.

You can use the 4 camshafts from the later BOB engine, which have a more aggressive profile than the early cams and will equate to fast road cams in a BOA - this step isnt to be considered lightly tho, as you'll be pulling about the timing chain area of the engine and you can quite easily open up a can of worms with worn chains and broken guides that are pretty much unavailable now from anywhere - if you can find a set of them, expect to pay in the region of £400 + for them !!

All the above mods should see you with 220-230 BHP and a nice lump of torque on the stock motor :)

After this, you're talking about moving to triple DCNF carbs, or looking at turbocharging (with all the uprated internals involved such as forged rods and pistons, etc) - BIG money.... but people have managed to take the BOA to 600 BHP +........

BOA is stronger than the normal cologne engine - but dont exceed 6400 rpm or you'll hear expensive and fatal noises :-/

Title: Re: what easy / cheap mods to BOA 24v
Post by myrs200 on Sep 9^th, 2009, 11:23pm

so 6000 is a good safe max rpm limit rather than 6500

Title: Re: what easy / cheap mods to BOA 24v
Post by pinto on Sep 11^th, 2009, 11:24pm

6.2K is regarded as a safe limit on the BOA :)

Title: Re: what easy / cheap mods to BOA 24v
Post by einherjar on Sep 30^th, 2009, 10:24am

on 09/09/09 at 20:00:34, pinto wrote:

Next up is to replace the standard scorp injectors with those from the 2.5 Vectra - better spray pattern and more efficient, hence give a few more BHP.

Is that injectors will fit in my 2.9 cossy? And will be work properly, of course :)

Title: Re: what easy / cheap mods to BOA 24v
Post by pinto on Oct 3^rd, 2009, 7:00am

Vectra injectors will only work in the BOA - the BOB use a completely different design so the vectra ones wont fit.