Upgrade to 1776 or deal with it?

[Merlydog]

http://www.drdracingheads.com/xcart/-Dual-port-type-1-heads-12mm-spark-plug-40X35.5mm-single-spring.html

head can be bored to larger size for no additional cost - so better heads in 90.5 config...

Nice one pard.. I'll get them ordered, fingers crossed I avoid the import tax! :shock: :mrgreen:

 

[dubdubz]

They're cheaper than stock heads, speak to Darrel, he might suggest a different setup, mine have single springs, make sure the heads have the 3 angle valve cut/grind, he missed mine and its not a case of easy popping in to get them done....

 

[Merlydog]

They're cheaper than stock heads, speak to Darrel, he might suggest a different setup, mine have single springs, make sure the heads have the 3 angle valve cut/grind, he missed mine and its not a case of easy popping in to get them done....

Ok great thank you. How much did your shipping cost and did the tax monkeys get you?

 

[dubdubz]

They're cheaper than stock heads, speak to Darrel, he might suggest a different setup, mine have single springs, make sure the heads have the 3 angle valve cut/grind, he missed mine and its not a case of easy popping in to get them done....

Ok great thank you. How much did your shipping cost and did the tax monkeys get you?

they came over in my bus...shipping is around

The shipping on 1 pair of heads is approx $115.00 , for 30lbs of goods, via us postal service. We can send these as a gift to you.
Darren Gurrola

 

[ZedBed]

My son just had some well disguised camera parts sent over from the US. He got stung for the tax, but it was still far cheaper. It seems they're basically opening anything valuable, then holding it to ransom it for the duty.

 

[jonboylaw]

I would be cautious about going for big valves if you are looking for torque. Read about a bit, ask questions from folks and see what works best for torque.
You will see that the smaller valves will flow better at low RPM (higher velocity intake charge) but will run out of breath at higher RPM. You need to decide what your MAX RPM is to be and where you want the Torque/Power curves to be. Same with the Carbs and Cam, think very carefully before committing the credit card.

 

[dubdubz]

I would be cautious about going for big valves if you are looking for torque. Read about a bit, ask questions from folks and see what works best for torque.
You will see that the smaller valves will flow better at low RPM (higher velocity intake charge) but will run out of breath at higher RPM. You need to decide what your MAX RPM is to be and where you want the Torque/Power curves to be. Same with the Carbs and Cam, think very carefully before committing the credit card.

arse - really? mine seems fine - stock cam and stock rockers, with the 36 dell's and vintagespeed exhaust it feels good, not diesel torquey granted. Worried I wasted my money and worse suggested something that won't be good. Sorry Merly!

 

[Merlydog]

I would be cautious about going for big valves if you are looking for torque. Read about a bit, ask questions from folks and see what works best for torque.
You will see that the smaller valves will flow better at low RPM (higher velocity intake charge) but will run out of breath at higher RPM. You need to decide what your MAX RPM is to be and where you want the Torque/Power curves to be. Same with the Carbs and Cam, think very carefully before committing the credit card.

arse - really? mine seems fine - stock cam and stock rockers, with the 36 dell's and vintagespeed exhaust it feels good, not diesel torquey granted. Worried I wasted my money and worse suggested something that won't be good. Sorry Merly!

No worries.. I've had the nod from my lovely friend that these are the ones to go for :mrgreen:

http://www.drdracingheads.com/xcart/DRD-35.5X32mm-Performance-head.html" onclick="window.open(this.href);return false;

 

[dubdubz]

coolio - I'm actually really gutted - looks like I was given duff gen when I bought, so much so I'm thinking about buying another set of the ones you posted and selling mine on.........

although I think it was my indecision on final CC size that confused my knowledge source, perhaps if I step up to 1955cc my heads would be ok?

good luck with your build....

 

[Gütterßnipe]

My son just had some well disguised camera parts sent over from the US. He got stung for the tax, but it was still far cheaper. It seems they're basically opening anything valuable, then holding it to ransom it for the duty.

Agreed, I got stung a couple of years back by the taxman when buying
a pair of ratty overiders!

Whatever next - Rust Tax!!!

 

[cotswoldiver]

Well I've spent the last week or so doing the sums and exploring my options.

An unlikely hobby for a bird but I do actually enjoy soon as much work on my bus myself, as some of you know! Soooo perhaps a little crazy but having read and listened to all the hot air on forums about performance engine building I've decided to give it a bash myself!

I figured I'm in no rush and can just take it a step at a time, it will be no drag bus but it will be a pleasurable motorway drive with torque for those hills..

I'm fortunate to have a very good friend whom is going to guide me through the process, not hands on I hasten to add, it will be all my own handy work.

Will I be eating my hat in 6 months, quite possibly!! :?

Standby for thread titled...

Bird builds 1776! :mrgreen:

Good for you Sarah
I'm afraid I'm still in Easy's camp and share the same engine builder ....
Look forward to reading all about it

 

[easy]

Well I've spent the last week or so doing the sums and exploring my options.

An unlikely hobby for a bird but I do actually enjoy soon as much work on my bus myself, as some of you know! Soooo perhaps a little crazy but having read and listened to all the hot air on forums about performance engine building I've decided to give it a bash myself!

I figured I'm in no rush and can just take it a step at a time, it will be no drag bus but it will be a pleasurable motorway drive with torque for those hills..

I'm fortunate to have a very good friend whom is going to guide me through the process, not hands on I hasten to add, it will be all my own handy work.

Will I be eating my hat in 6 months, quite possibly!! :?

Standby for thread titled...

Bird builds 1776! :mrgreen:

Fair play lady! thats a great choice, im sure you will be fine 8) im a lazy ****** and prefer for someone to do it for me, because it does need a great deal of tools that i simply dont want to buy for a potentially one off occasion. Hats off and looking forward to hearing the roar! 8)

Thanks Easy! I know what you mean but I'm hoping I can borrow most of the tools for this one off occasion. Might just have to invest in one of those cheeky exhausts of yours if it runs when I've finished

Do it 8) let me know before and i will have a word to give you special treatment

 

[Merlydog]

I've absolute respect for those professionals and don't expect it to be easy. I just want to see if I can do it I intend to keep the trusty 1600 complete minus my dells and ancils just in case it all goes wrong :shock:
Tidied the garage yesterday and set it all up ready for my pair of blocks for stripping. Let the fun begin 8)

 

[faux]

Good Luck with the build.
I have just changed to a very stock 1776 (single carb etc). It has done 1300 miles now and has made such a difference, but I will be upgrading the gearbox as it is a little rev happy, the 185/65/15's on the back don't help. Is it cheaper to notch the rear and add bigger tyres or change the box???
Jon

 

[ZedBed]

coolio - I'm actually really gutted - looks like I was given duff gen when I bought, so much so I'm thinking about buying another set of the ones you posted and selling mine on.........

although I think it was my indecision on final CC size that confused my knowledge source, perhaps if I step up to 1955cc my heads would be ok?

good luck with your build....

I'm no expert - I just did what I was told, but when I found I had a good pair of mexi heads with 32 / 35.5 valves LP words were "Perfect". It starts to run out of welly at about 55 in 3rd std wheels and 1600 gearbox. C35 cam though. Good enough - probably shouldn'r rev it over that anyway...

Incidentally I had to wait for oncoming traffic today and set off a car alarm....as Jeremy Clarkson would say ... at tickover. 8)

 

[dubdubz]

I'm no expert - I just did what I was told, but when I found I had a good pair of mexi heads with 32 / 35.5 valves LP words were "Perfect". It starts to run out of welly at about 55 in 3rd std wheels and 1600 gearbox. C35 cam though. Good enough - probably shouldn'r rev it over that anyway...

Incidentally I had to wait for oncoming traffic today and set off a car alarm....as Jeremy Clarkson would say ... at tickover. 8)

- I'll stick with it for awhile longer - should get my money back - ideal in a bug probably :roll:

 

[ZedBed]

I'm no expert - I just did what I was told, but when I found I had a good pair of mexi heads with 32 / 35.5 valves LP words were "Perfect". It starts to run out of welly at about 55 in 3rd std wheels and 1600 gearbox. C35 cam though. Good enough - probably shouldn'r rev it over that anyway...

Incidentally I had to wait for oncoming traffic today and set off a car alarm....as Jeremy Clarkson would say ... at tickover. 8)

- I'll stick with it for awhile longer - should get my money back - ideal in a bug probably :roll:

I wouldn't get disheartened. You were quite happy before you read this. I'd have gone for big valves too - seems the way to go, but when you delve further into it a lot of the sellers must be catering for high revving beetles heading for the strip and less so for buses that want to drive up hills without slowing down. Market forces therefore thrust big valve 044 heads at you from all directions. However those heads you have look great value don't they?

Another thing, the way this engine malarky goes, the biggest gain is the additional cc's - can't beat that. I suspect all the rest is so much icing on the cake with each small increase in power costing ever more money until it blows itself to pieces and you start again. :lol:

The first thing seems to be uprate the cam slightly to get some more mixture in and out, so that must be the biggest gain (I could be talking out me arse here). Going too mad with the cam makes it undrivable at low revs though so there's a sensible limit.

Next is what? High ratio rockers to open the valves even more?

Then we find that the only way for more power is more revs - look at F1 cars they rev the nuts. If you can rev it higher, it stands to reason you'll be in a lower gear and more power to the wheels. So you have to carefully balance everything inc the cooling fan and stuff and you need a stronger crank because the stock one will simply snap. But when it's revving the nuts it can't suck in enough mixture, so only then do you add bigger valves. This seems to be at the expense of low end drivability - ie unless you keep the revs up it's a bitch.

You've actually done just what I'd have done - thought sod it I'll leave the cam and get more mixture in with bigger valves. I dare say you'd not notice a great deal of difference unless you're lugging it and you shouldn't be doing that with any air-cooled engine if you want it to last.

I'm pretty new to all this non-stock business so someone please correct me where I've gone wrong and made silly assumptions.

 

[jonboylaw]

I think you summed that up well chap.

Now lets talk about ignition.... (gets popcorn..)

 

[dubdubz]

Thanks Zed, I was being an old woman, and the next step for me is 1955 or 2165?, then the heads with stock cam and std rockers should be ok, there are so many factors. Let's face it, the drag racers all start with the same choices but end up with wildly different times and successes.

I wont mention the fact I wish I'd done 1776 and not 1745... :lol:

Not really a hijack...as all good info...mind you if the case is open, then you might aswell pop in a 76mm or 78mm crank, and thickwall 92 or 94 cylinders...haha

 

[jonboylaw]

I would be cautious about going for big valves if you are looking for torque. Read about a bit, ask questions from folks and see what works best for torque.
You will see that the smaller valves will flow better at low RPM (higher velocity intake charge) but will run out of breath at higher RPM. You need to decide what your MAX RPM is to be and where you want the Torque/Power curves to be. Same with the Carbs and Cam, think very carefully before committing the credit card.

arse - really? mine seems fine - stock cam and stock rockers, with the 36 dell's and vintagespeed exhaust it feels good, not diesel torquey granted. Worried I wasted my money and worse suggested something that won't be good. Sorry Merly!

No worries.. I've had the nod from my lovely friend that these are the ones to go for :mrgreen:

http://www.drdracingheads.com/xcart/DRD-35.5X32mm-Performance-head.html" onclick="window.open(this.href);return false;

They look to jobbies and the 3 angle seats will help the flow around the valve greatly. Nice find. LP recommended the stock Euromax heads as he likes em.