bora 2.8

[oldmandon 1]

I've been looking at Bora's for a friend of mine (yes I like them too, but keeping my VR thank you very much), and came across a 2.8 V6 4Motion. What baffled me was that the Bora with it's 2.8 engine (just a quick note...same as our vr's!!!) puts out 204bhp???!!!! How and What is different to produce that much more power?

Would the Bora engine fit in the VR.....Just a possible upgrade which could then be given the tune up.....

[dman78 1]

im sure i read somewhere that the heads are different,maybe 24v or the flow has been improved

[spadam 7]

Head is 24v with revised inlet manifold

[DanH 1]

yea,24v same as 4mo golf

[oldmandon 1]

im sure i read somewhere that the heads are different' date='maybe 24v or the flow has been improved

[/quote']

For a 30bhp increase???!!!!! Surely gotta be something else as well

[oldmandon 1]

OK, so its a 24v head, could this be fitted to a vr motor? or could you retro fit the engine?

[dman78 1]

[blockquote]OK, so its a 24v head, could this be fitted to a vr motor? or could you retro fit the engine?[/blockquote]

would think the bolt patterns would be different

[DanH 1]

nope. heard water or oil ways different.....but yea u could put the 24v in urs

[craggsy 91]

24v engine flows so much better than the 12v, dam sight more economical as well. I see 30+mpg quite often in mine, when its working that is lol

[dman78 1]

[blockquote]nope. heard water or oil ways different.....but yea u could put the 24v in urs[/blockquote]

so i could put a 24v head onto my 12v block,would love to know,anything to get the extra horses is well worth knowing about

[craggsy 91]

Just put whole engine in.....fairly easy by all accounts, and will be a lot newer block than the VR

[oldmandon 1]

24v engine flows so much better than the 12v' date=' dam sight more economical as well. I see 30+mpg quite often in mine, when its working that is lol

[/quote']

I thought yours was a 3.2??

[craggsy 91]

yeah it is...........but 24v engines came in 2.8, 3.2 and 3.6

2.8 in the 4 mo

3.2 in te R32

3.6 in the R36

basicly

[DanH 1]

it is. they did a 2.8,3.2 and 3.6 24v i believe

*edit* to slow!

[oldmandon 1]

whats the power output of the r32 then? that would be a good conversion surely??!!

[craggsy 91]

R32 is 240bhp or there abouts

[DanH 1]

[blockquote]nope. heard water or oil ways different.....but yea u could put the 24v in urs[/blockquote]

so i could put a 24v head onto my 12v block' date='would love to know,anything to get the extra horses is well worth knowing about

[/quote']

noooooooo its different,oil ways and bolt patterns.....the WHOLE 24v engine will go tho. many 2.8 24v 4mo/r32 engines been put in mk2/3s. even seen a 3.6 24v in a mk2

[VR6Pete 1,455]

One of the most restrictive parts of the VR6 12v is the head, if you can afford it, invest in the schrick big valve head

[bungy 2]

The 2.8 24v engines designate AUE and BDE have heads that are not compatible with the 12v engines although the block is very similar and can be made to fit fairly easily. The plastic inlet has long and short paths and a flap valve to direct between the 2 very much like a schrick. The 24v heads were designed by Cosworth and flow very well. If you are going high power F/I some think it is better to stick with the 12v lump and make it bullet prove for high psi. The restriction for the 24v lump is the plastic inlet which probably won't take much more than 1bar (14.5 psi). This can be swapped out for an aluminium short runner. I think that is all correct but i'm no expert.