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Planning an engine rebuild in the future

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Paulc1964au Custom Title Time!

1,627 posts · joined Mar 2010 ·

#826119
Well this year will see rosie with a new interior so I am planning what else I'd like to have done.

I will eventually respray the car but not for a few years. I would like to increase the power of the 1600 TP and have my engine rebuilt rather than replace it. It runs well and hasnt had any issues however I'd like a little more power on take off. Maybe increase HP from around 45hp to 80hp. I am not looking for a race car just something to drive on weekends with a little more grunt.

From what i have read the fist things i should do are

1. Replace the existing cam with a larger one
2. Twin IDF carbys 36?
3. Replace the standard exhaust
4. Powder coat the tinware

Is there any other modification i should consider, i am thinking of a budget of around 4 to 5K

Any advice would be much appreciated
/url]Streetwise Aircooled Volkswagens
My 69 Bug

johny rotten Officially Full-On Dubber

366 posts · joined Apr 2004 ·

#826125
1. increase the capacity

2. use a standard cam and standard carb
or
use dual webers , increase the comp ratio , replace cam , improve cooling.

A good 1770cc costs around 5K

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#826131
I agree with Johnny's advice

a 1776/1916 with mild cam, carb and exhaust gives about 25% increase in power and is nice and torquey.
I had a 1916 like this for about 5 years and was a lovely daily

A stock 1600 with exhaust and dual carbs would be very similar but duals are more work than a single

After that it is a matter of how far you want to go

read the ac.net tech articles as well
Futue te ipsum!!!

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#826138
increase capicity just bore the case and heads to fit bigger cylinders and pistons......best power increase if engine is coming apart anyhow.

benefits of new rings comes with it

doesn't cost much for the machining, send it up to pobjoy or the dudes in sydney would get it done for around $200

thing is Rod could probably set you up with a complete engine for your budget

bit of light reading for ya here 😂......

http://forums.aussieveedubbers.com/viewtopic.php?tid=38560

polak Everything is alright with enough Vodka :P

913 posts · joined May 2009 ·

#826395
hey Paul, a 1776 with higher comp, bigger heads and twin 40-44idfs with a custom tune, 110 engle cam, ratio rockers and a 1 1/2 inch extractors will give u the performance gain u want :P could get that done for ur 5k budget.... 🤓 a 1916 would be a little more power but with a 1776 it would be a little more safer cooling wise if u dont wanna go an external cooler.... i had 86.5hp at the wheels on my 1776 with 48 idfs and a 1 5/8 exhaust.... but to be honest the carbs and exhaust were too big for it... the 1776 would give u real nice torque without going too silly.... cheers adam


VW - helping put oil back into the ground for over 60 years

polak Everything is alright with enough Vodka :P

913 posts · joined May 2009 ·

#826402
u could use ur existing case and possibly the crank depending on its condition.... ( if it needs it, it can be re-ground, but for i wouldnt put anything in over a 1st grind if u want to be able to have some fun and have it be reliable) but heads, cam, pushrods, rockers, head studs and bearings would be new, no point or worth the risk using an old bottom end when ur going to pull it apart..... u wouldnt know untill u pull it down but after u check all the parts and clearances u would know how much of it u can use.... if its the original case and it hasnt been tunnel bored u would be fine using the case and crank, either that or u could use a german counterwieghted crank.... nice addition esp if u get the rolling assembly balanced.... standard rods would be fine too... but like i said new bearings would be advisable if ur going that far...


VW - helping put oil back into the ground for over 60 years

polak Everything is alright with enough Vodka :P

913 posts · joined May 2009 ·

#826407
no worries Paul, let we know when ur ready, ill start getting things sorted then... biggest expense will be carbys by far, the rest is easy.... have a good one... cheers adam


VW - helping put oil back into the ground for over 60 years

DylanTheDubber Custom Title Time!

1,252 posts · joined Jun 2009 ·

#826413
Powder coasting the tinware gives a 15% HP increses straight up =p

From Dylan

polak Everything is alright with enough Vodka :P

913 posts · joined May 2009 ·

#826414
hahaha, love ur work Dylan 😀


VW - helping put oil back into the ground for over 60 years

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#826416
DylanTheDubber wrote:Powder coasting the tinware gives a 15% HP increses straight up =p

From Dylan
pfft

Paulc1964au Custom Title Time!

1,627 posts · joined Mar 2010 ·

#929833
ok so getting closer to my engine build here is what i have purchased so far

New As41 case bored for 1776
mohle 90 mm pistons
New heads port and polished
engle 110 cam
8 dowel counterwieghted crank
SCAT oil reservoir
Twin Delorto 40's

Still to purchase

Distributor - probably a magnaspark digital
Alternator - 55 amp
lightened flywheel
Vintage speed exhaust
New clutch and pressure plate
Starter motor
Gauges - tacho, oil temp and oil pressure
Tin ware - although may use my existing tinware
/url]Streetwise Aircooled Volkswagens
My 69 Bug

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 ·

#930272
I will recomend a 1776 like your building.

I had a great little 1776cc motor but with a W100 cam, was a great little torquey motor with a resonable amount of power.
I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#932682
depends on your budget and skill level.........powder coating is probably the most durable 😉


ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#932696
I think that you can get a higher amp alternator , think 75
you dont need a lighten flywheel on a street ccar.
comufire coil pak jobby works well , givees you spark like a commodore.
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

snitz Wolfsburg Wizard

605 posts · joined Sep 2008 ·

#932702
Cb Performance sell the Magnaspark digital dizzy aswell but they are probably more for freight than CIP1.I run the Compufire set up on the wifes beetle and have been very happy with it.Wassim @ VOLLKS would be the cheapest if you went the Compufire Direct fire setup.The leads are too long..cheap and generic for my liking so I bought MSD SuperConductor lead by the length and made my own.You can view my wifes beetle build up thread to get an idea of the setup if you go the Compufire setup..Either way still love your beetle and good luck with the new donk!.😎

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#932705
Paulc1964au wrote:Thanks guys for the advice I have a friend who has his own spray shop so i may go to him otherwise ill see about powder coating.

Thanks ian will stick with a standard
the better alternator helps run all those extra lights and gauges , CD , ignition, etc
A standard type vw clutch kit is all you need to , I think they called sachs ?
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#933418
Paulc1964au wrote:The other issue I am trying to resolve is I want a tacho, oil temp and oil pressure gauges just not sure what type of array I should purchase and where to mount them?
Here ya go Paul.....let me know if you want one and I will do you a special price 😎

http://forums.aussieveedubbers.com/viewtopic.php?tid=67359&page=1