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Topic: Manual Cosworth? (Read 11959 times) |
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pinto
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TD04 on a galaxy manifold ? whooooooosh !
 
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Re: Manual Cosworth?
« Reply #60 on: Jan 1st, 2009, 6:14pm » |
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If its that easy, then its all roses  but every BOB/manual conversion I know or have heard of either runs on the ealier BOA management with a seperate control system for the VIS, or on aftermarket management such as OMEX or emerald.
Hence why im wondering
I was considering megasquirt personally.
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: Manual Cosworth?
« Reply #61 on: Jan 1st, 2009, 6:23pm » |
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ive had a good chat with dave of FP, he assurs me it will run. was thinking of having a proper ecu when ive saved up again, but the only way to know for sure is to do it! i know what you mean about the autobox and ecu, from what i gathered is that yes the ecu controlled the box, but only in the sence it controlled the gear selcetion through the solenoids and a signal from the VSS (which also needs to be changed for the diesel box's one btw).
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FDS2000 Scans - Birmingham
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Manual Cosworth?
« Reply #62 on: Jan 1st, 2009, 7:18pm » |
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Oh its sounding very complicated
Matt, about the VSS, use the 24v drive pinion in the diesel box is that what you're saying?
Or in my case the 2.0 16v drive pinion? 
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: Manual Cosworth?
« Reply #63 on: Jan 1st, 2009, 7:25pm » |
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It wouldnt be any fun if it was easy LOL 
in your case mate it would either be the 2.0 or the 2.5 diesels, im not sure how far out the speedo will be out with your setup.
im not sure my self what to use yet, ive got 3 diffs (2.0, 2.5 and 24v) at my disposal, 2 diesel boxes and i'll have 2 cossie auto boxes to mix and match bits. i can see it just being a case of fitting it all then messing with one bit at a time 
what i do know is this, 4.0ltr 24v + manual box + 2.0diff = shredded tyres  . however using the 2.0 diff will give you mega acceleration but utter rubbish mph, top speed and really is a waste of the manual, 2.5 diff, 2.5 vss is my fav atm but since the diffs are easy enough to swap i may have a play with them but set the gear box up with the diesel vss
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FDS2000 Scans - Birmingham
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: Manual Cosworth?
« Reply #64 on: Jan 1st, 2009, 7:35pm » |
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As I understand it the VSS works off the final drive from the box therefore the teeth on the VSS drive pinion need to be matched to the correct diff.
As long as thats done then the speedo reading should be accurate.
Am i wrong?
I have fitted the 4.27 VSS drive pinion the the 24v box and it reads spot on as it should do, slightly faster than actual speed.
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: Manual Cosworth?
« Reply #65 on: Jan 1st, 2009, 7:37pm » |
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on Jan 1st, 2009, 7:25pm, Matt wrote:| using the 2.0 diff will give you mega acceleration but utter rubbish mph, top speed and really is a waste of the manual |
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Mine can still hit 140mph with the 4.27 diff
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: Manual Cosworth?
« Reply #66 on: Jan 1st, 2009, 7:48pm » |
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you are correct in what you say but are you basing that on using a standard auto box? Not a manual gearbox from a diesel scorpio, its something i smiply dont know with out trying because its not somthing that common and normally this sort of convo ends up in a lighter sierra
Its not like i can say stick the 2.0 diff in the diesel and drive it round either because its again completly diffrent. a 4ltr 24v will chuck out a good 300bhp and a roughtly the same amount of torque. that bolted to the MT75 will change a few factors that we know of because were used to basing figures running a 2.9 24v on an auto box
running a 2.0 diff along with a manual box you are in some ways canceling out the benifits of having the manual box in the first place, not to mention how well a diff designed to run on a car with what 120 - 150bhp will cope with double that and even more torque
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Highlander
Moderator
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Manual Cosworth?
« Reply #67 on: Jan 1st, 2009, 8:06pm » |
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Well i have plenty spare diffs, only one way to find out
The speedo shouldnt be a problem though, no matter the BHP and torque of the engine, and whether its manual or auto the output shaft/diff combination will give the same reading.
I have tried a 4.27 diff in a diesel as a wee experiment , you need to pull away in second lol first gear is useless, you can hit 6000 rpm by about 15mph but its great for wheelspins
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: Manual Cosworth?
« Reply #68 on: Jan 1st, 2009, 8:16pm » |
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well stuart mate we better start building these monster scorpios and see whats what
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FDS2000 Scans - Birmingham
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5stud
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I'm a YaBB newbie!
Posts: 436
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Re: Manual Cosworth?
« Reply #69 on: Jun 19th, 2009, 9:07am » |
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hi grumpy one.read this old post
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