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Discussion Starter · #1 ·
What do you need to do ?
 

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Discussion Starter · #3 ·
Its a later bay
 

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As far as i know its just a straight forward fit aslong as you have the tinware, correct gearbox (2 litre) and engine bracebar, all buses after august 72 were designed for the type 4 engine, mods were made to the tinware for the 1600 to fit in the engine bay

Should be no probs

heres info for fitting into early buses

type 4 into early bay
 

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the t4 should fit any gearbox i guess?
iv one in my splitty
fitted first to the splitty box and now to a bug box
so should fit a bay no probs
does your box have the tube inside the clutch release bearing for it to slide along?
 

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Discussion Starter · #6 ·
#So we would need a different gearbox ?

Cheers Mick
 

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There are a number of pitfalls.
Not all T4 engines were the same.
The flywheel got bigger in '76, requiring a bigger
bellhousing.
The gbox shaft length varies.

Your exisiting gbox ratio may not be optimum for
a larger engine.

The T4 engine needs a substantial rear support bar
(of some kind).

Read thru these pages; there is a wealth of info to digest:

http://www.tunacan.net/t4/tech/trans.shtml
http://retro.co.za/puma/tech.html

http://www.ratwell.com/technical/FAQ/FAQContent.html
Section 4.1/4.2
 

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Kerb Side Autos said:
#So we would need a different gearbox ?

Cheers Mick
i know were theres a 2litre bay box @ wath 5 rib he wants 50 quid for it or just get flywheel off a 1700 or 1800cc and it should go on ur bay box
 

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Hi Mick,
I've just fitted an ex-914 "W" code 1700 Type4 into our old Bay - its a bit of a tight squeeze and I had to remove the towbar as it fouls on the HUGE type4 'zorst. The cross bar is slightly different too - I think I just swapped the ends over to fit the chassis.

In all fairness though, fairly straightforward and the power increase is great - especially with twin 40DRLAs and 10mins on the rollers! :D

Induction roar in a bus is BAD... :bandit:
 

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Discussion Starter · #12 ·
Thanks everybody

James what emulsion tubes did you use in the end ?

Cheers Mick
 

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Well, I decided to put the main jet stacks from the Ghia engine (1914 with Super D's etc ;) ) just to drive to RS as I knew that was a matched set and somehow it worked out to be perfect! All we did was tweak the mixture screws for a better crossover from idle to mains :D

180 airs
9164-2 e-tubes
139 mains

32 vents

55 idles


the only difference with the ghis that that has 60 idles - so it just goes to show how you really can't specify the size of jets in advance - its more about having a matched/balanced "stack" as it were.

Suffice to say the 2 engines are VERY different;
A stock 1700cc type 4 that made factory (~80bhp) numbers on the dyno (~65rwhp)
and;
1914cc built for turbo with BIG heads, low compression and thoroughly mis-matched in n/a tune - i.e. unported manifolds, 1 5/8 merged header and a crappy restrictive bugpack quiet pack made about 80 rwhp on dyno - I can't wait for efi + a T4 ;) :D
 
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