whos got a big (1776/1914) engine in a slammed bus, question

[petegee56]

well I think I have permission from the wife to get a bigger engine for my bus, however I am a tad worried that my bus is pretty damn low at the back and only have a stock exhaust on my bus at the minute and not sure what else i could run, but to get the best out of a new engine i will need to change to a performance exhaust, so whos got a slammed bus with a big engine in and what issues has the exhaust caused am i going to have to raise the back if i do it.

Ps this is going to cue a lot of questions in the technical section in relation to working out what i want bear with me


thanks

Pete

 

[Slammed]

I got a 1776, and I'd say DO NOT get a merged header and Mondo exhaust...

I'm looking at getting one of the Vintage Speed exhausts at the moment, or a Python, although they are mega money.
For now I'm getting a cheap quiet pack muffler and cutting and welding it so it gives me a bit more clearence.

 

[petegee56]

Cheers slammed, I saw this picture and looked through your thread in the technical section, a Python exhaust is a big dent in the engine budget, how are you getting on with your 1776

Pete

 

[Slammed]

1776 rips, you won't look back (except at your mates in the rear view mirror!).

Don't forget with a bus that low you can't run a deep sump but you might want extra oil capacity.

 

[petegee56]

Hmmm good point nothing is ever easy is it, time to do lots of research I think

Pete

 

[dubdubz]

For now I'm getting a cheap quiet pack muffler and cutting and welding it so it gives me a bit more clearence.

I've done the same - I'll post pics of my exhaust, the spare one Slammed has dibs was in case my cutting and shutting went wrong!

I have a 1745 which isn't big but has similar output to the 1776 - this is the size I would recommend tbh, gives decent power and with good tuning should return late 20's early 30's on a run.
Also as it is a 'known' build there is
a] decent builders doing them
b] enough info to build your own

you can always up the CR and do fancy heads if theres any cash left [ie your budgeted for a 2007cc or something!]

and get it balanced if you do it or someone else does it'll rev better and hammer the bearings less, 1776 shouldn't need any additional cooling either - just the factory setup in good order with decent fitting tinware....

lastly don't forget the gearbox - longer gearing will help maintain speed at less revs so fuel economy/cooling all works!

 

[petegee56]

Thanks for the responses the speedshop exhaust that will fit a bay still looks like it hangs pretty low,

Thanks for the response dubdubz 1776 balanced with a decent set of heads was what I initially think I'm going to go for nothing to crazy but I would like something that can be a little wild

Pete

 

[jacks906]

i was talking to the dudes at bluebird customs there standard fit stainless one has had good results on 1776 motors, tis the one ill be going for with any luck
dave

 

[andy11]

Been looking at Performance exhausts for a long time now and in my opinion the best one all round is from http://www.vintagespeed.co.uk/" onclick="window.open(this.href);return false;, they do superflow systems now and they are the dogs for clearance, bit pricey but cheaper than a python.

 

[alex4057]

I have run 1776cc and now a 2276cc engine in my bus, BUT it's low not Slammed, I ran a merged header on the 1776cc and it does hang out the back and cause issues going up any large inclines, kerbs etc. I now run the CSP Python and its a great exhaust but again the tip where the gasses exit sits lowest and I haven't hit it yet but when going over speed bumps it's not that far off. The VintageSpeed exhaust seem to offer the most clearance and value for money, but I don't have any personal experience of them so wouldn't like to comment more than that.

I would highly recomend mounting an external oil cooler(with a Fan on an inline switch) and filter, this if you can't run a deep sump will add the extra OIL capacity that any performance engine is helped by. The more oil the easier it is to keep the engine cool and the faster speed you can average. I ran my 1776c without the cooler but with a filter but then added it and the average temp drops by 15 to 20 degrees.

It's also well worth either getting a longer gear set put in your box, OR sourcing an 091 2L later gearbox as these have much better ratio's and again help with cruising speed and make long journey's a pleasure!

 

[petegee56]

Cheers Alex

thanks for the response, now i get the feeling that this is going to be a foolish question, but what is it about the exhaust that adds the most, the header or the muffler, or a combination of both. I was thinking could i get an off the shelf header and get a custom exhaust made up to fit, however i get the feeling that the large back boxes which cause the clearance problems are whats needed for movement of gases, ( i really know nothing )

I was going to try to budget for gearbox as well, either rancho freeway flyer or cogbox/bears but then again I want to get the best engine i can for my budget and may have to stick wih my 1600 box to start with and do some saving

external oil filter it is then, I know i will have to raise the back a bit but i would like to raise it as small an amount as possible

Pete

 

[Graham L]

Hi Pete
I know mines not anywhere near as low as yours but you are more than welcome to pop in and see how a header and tail box sit on the 1835 thats in monty and take measurements etc (height off engine bar etc), mines also got an external oil filter and cooler fitted so you can see how those mount as well.

Give us a bell before popping in and we are now in Unit 2 not Unit 3 :mrgreen:

I'm seriously looking at the vintagespeed box as thats good for up to 125 bhp and fits up tight behind the rear valance,

 

[dubdubz]

I haven't priced the parts recently, perhaps someone else has? The parts cost difference between 1955 say and a 1776, also bear in mind bigger engines need bigger brakes.

It's a slippery slope and one that requires personal control, to choose a size and build your engine around it.1745 was a pain to build in terms of crank clearancing, and getting the deck height (and assc CF), no one does spacers off the shelf for 85.5mm barrels.

But I think the lump will be ok...should I decide I need to go bigger, then I already have a dynamicaly balanced 76mm bottom end which I can add thick wall 92s or 90.5's. My problems would then be my carbs may be small 36 dells and general economy would suffer, bigger engines use more fuel of course.

 

[Guest]

I believe you would hit the engine bar before you would scrape the exhaust even on the standard baywindow offering from vintage speed. They havent produced a slammed one yet for the bay, as they have for the split. I dont think they need to, going from these pictures it looks to be nicely tucked up with an inch or two's clearance.

 

[dubdubz]

photos courtesy of Brian Watts

 

[VWsArent4Hippies]

I've got a 1776 in my bus. I'm just running this beetle muffler. It flows better than stock and has the same clearance as stock. Can't beat it for $80:

 

[petegee56]

Cheers for the photos guys, they help alot, as long as it does not hang below the engine support bar that will be good,seems to me that the vintage speed one could be a good option,

VWsArent4hippies, thanks for posting that exhaust looks pretty cool, what exhaust is it ? love your bus how does youyr 1776 go

Pete

 

[creationblue]

Here is my Turbo Thomas custom build, this pic was taken b4 i lowered it, and with the 1600SP motor in, im having a 1776 build now Now issues with clearance.

Just

 

[VWsArent4Hippies]

VWsArent4hippies, thanks for posting that exhaust looks pretty cool, what exhaust is it ? love your bus how does youyr 1776 go

Pete

It's this EMPI one:
http://www2.cip1.com/ProductDetails.asp?ProductCode=C13-3418" onclick="window.open(this.href);return false;

It seems to be holding up pretty well considering it's EMPI. The 1776 is waaay better than the 1600 was

 

[kombiporsche]

My bus is pretty low but not slammed.

I run a 2074 with an A1 sidewinder and a CB thin line sump, no problems so far.

http://www.vwparts.net/A1JTUBES.html" onclick="window.open(this.href);return false;
http://www.vwparts.net/A1SWHT.html" onclick="window.open(this.href);return false;
http://www.vwparts.net/A1HTBUS.html" onclick="window.open(this.href);return false;

http://www.cbperformance.com/catalog.asp?ProductID=201" onclick="window.open(this.href);return false;

Header and sump doesn't go lower than the moustache bar