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914World.com _ 914World Garage _ What pistons?
Posted by: shandyhaggis Jul 31 2014, 05:17 AM
Hi all
Im restoring a US 1976 2.0 with a 1973 2.0 engine (not sure how that happened but hey). Im in the UK and these are as rare as hens teeth.
Ive decided to retrofit a standard FI system (currently gathering the relevant bits).
My engine builder has suggested a Web cam - WEB #73 262/262 duration 0.426 lift which I believe is correct.
Any ideas on what pistons I should use? The 73 engine has bus pistons which are in good shape but if Im going to the expense of rebuilding then I feel I should put something better back in.
Im not looking to build a hot rod just a nice reliable fun motor.
My engine chap is suggesting Keith and Black pistons (96mm). Would that work or are there better options?
thanks
Andrew
Posted by: cary Jul 31 2014, 07:09 AM
Here's the guys to talk to if you want the better options.
http://type4store.com/products/piston-cylinder-rings.html
Here's the other option.
http://www.europeanmotorworks.com/vw/type-4-pistons-cylinders.html
Haven't used either for hard parts. But its where I'd go if I needed pistons and cylinders. My .02c.
Posted by: Java2570 Jul 31 2014, 08:12 AM
Call European Motorworks - they are great and have very good prices. Also, Type 4 store has been very good as well. On my current 2.0L D Jet engine I rebuilt, I used a stock cam grind from EMW and reused my flat top KS pistons. I'm not sure I'd go with a Webcam 73 cam for an otherwise stock engine with D Jet. I ended up with buying a cam kit from Type 4 store (9590) and KB pistons and jugs from EMW. I have not built this engine (2056) yet as I'm still gathering some parts but I've read that the 9590 cam will be a better fit for D Jet than the Web 73....although some tuning will be required for any non stock cam setup. Anyway, my 2 cents only, talk to more of the great folks here! Jon
Posted by: shandyhaggis Jul 31 2014, 09:47 AM
Here's the guys to talk to if you want the better options.
http://type4store.com/products/piston-cylinder-rings.html
Here's the other option.
http://www.europeanmotorworks.com/vw/type-4-pistons-cylinders.html
Haven't used either for hard parts. But its where I'd go if I needed pistons and cylinders. My .02c.
thanks for that, Ill follow up.
Andrew
Posted by: Cap'n Krusty Jul 31 2014, 09:55 AM
While the nice folks at Web Cam mean well, they've been saying for decades that this cam works with D-jet, and it does, if you don't mind low vacuum and poor performance (including idle) under about 2000 RPM. I suggest you look elsewhere for your camshaft. The stock grind is best for the money, and it is said that Jake Raby has a camshaft that works well. Remember to buy lifters from the same source as you buy your camshaft. If I were you, I would purchase a set of factory pistons and cylinders. They're readily available, and the quality is high, unlike most of the less expensive aftermarket brands (which are made in China).
The Cap'n
Posted by: shandyhaggis Jul 31 2014, 09:59 AM
Call European Motorworks - they are great and have very good prices. Also, Type 4 store has been very good as well. On my current 2.0L D Jet engine I rebuilt, I used a stock cam grind from EMW and reused my flat top KS pistons. I'm not sure I'd go with a Webcam 73 cam for an otherwise stock engine with D Jet. I ended up with buying a cam kit from Type 4 store (9590) and KB pistons and jugs from EMW. I have not built this engine (2056) yet as I'm still gathering some parts but I've read that the 9590 cam will be a better fit for D Jet than the Web 73....although some tuning will be required for any non stock cam setup. Anyway, my 2 cents only, talk to more of the great folks here! Jon
Thanks Jon
sadly I think the webcam is already 'purchased' by the builder so Im obliged to go with it. I will contact Euro motorworks though.
I need to read more about the standard FI for the 2.0. What are you able to adjust for tuning? I thought it was a fairly sealed thing with only a co adjustment.
Ive got soo much to learn :-)
Thankfully Im in the right place!
thanks
Andrew
Posted by: reharvey Jul 31 2014, 10:24 AM
(Sadly I think the webcam is already 'purchased' by the builder so Im obliged to go with it. I will contact Euro motorworks though. )
The Webcam 73 has worked well in my 74 2.0 D-jet. ( 15 yrs. ). I also have that cam in my 73 2.0 w/D-jet and it is runnind great. You'll need to find someone who really knows how to tune and adjust the D-jet system to work with whatever motor you build. If you don't know a guy that can do this for you then it's best to go stock all the way. The Bus pistons are deep dished and will give you really low compession so dump them for some flat top pistons. Ray
Posted by: shandyhaggis Jul 31 2014, 10:33 AM
(Sadly I think the webcam is already 'purchased' by the builder so Im obliged to go with it. I will contact Euro motorworks though. )
The Webcam 73 has worked well in my 74 2.0 D-jet. ( 15 yrs. ). I also have that cam in my 73 2.0 w/D-jet and it is runnind great. You'll need to find someone who really knows how to tune and adjust the D-jet system to work with whatever motor you build. If you don't know a guy that can do this for you then it's best to go stock all the way. The Bus pistons are deep dished and will give you really low compession so dump them for some flat top pistons. Ray
thanks for that. Im going to have to ask around re tuning the d-jet (or learn myself) there may be 1 or 2 aficionados in the UK. Ill def go for flat tops, Im steering towards factory all the way. I dont like meddling with the unknown :-)
thanks again
Andrew
Posted by: shandyhaggis Jul 31 2014, 10:36 AM
While the nice folks at Web Cam mean well, they've been saying for decades that this cam works with D-jet, and it does, if you don't mind low vacuum and poor performance (including idle) under about 2000 RPM. I suggest you look elsewhere for your camshaft. The stock grind is best for the money, and it is said that Jake Raby has a camshaft that works well. Remember to buy lifters from the same source as you buy your camshaft. If I were you, I would purchase a set of factory pistons and cylinders. They're readily available, and the quality is high, unlike most of the less expensive aftermarket brands (which are made in China).
The Cap'n
thanks for that. The engine chap was keen to change the cam to make an improvement from stock. Dont ask me what it was meant to do (Im not an engine guy as you can probably tell) something about making it breathe better.
Do I need to go to Porsche for the piston kits?
thanks
Andrew
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