Experimenting with boost

[Jakeman75]

Hey guys I have decided to try a little boost on my California speedster. I was curious as to how much is safe on a 1600

[kangaboy]

You have to give some type of supporting information to get a real answer. Some people (Clonebug) are pushing mid 20lbs right now. If you don't have an intercooler and means of keeping IATs down, 8lbs is about all you can do. We need more info.
_________________
-74 Standard - "CaliBug" 2084T, MS3X w/FI and Crank Fire
-76 Westy - "Gandalf"
-18 GTI SE

[Jakeman75]

I’m running a stock rebuilt 1600 dp and plan on putting an amr 500 on the motor that came off a friend of mines subaru

[Krochus]

I’ve not got a whole lot of miles on my stock 1600 single port but it sees 5-8 psi with the gt15 turbo.

I am not locked on the timing. I have a boost retard box.

[kangaboy]

[Jakeman75]

All I plan on is 5-8 pounds nothing over 10 for sure because this is my first supercharger I’ve ever dealt with and I don’t want to go too crazy with it. I figure if this goes ok I can move up and try bigger things

[clonebug]

[[email protected]]

one main weak point is going to be the 4 dowel crank/flywheel. Stock cast pistons too.
_________________
It's just advice, do whatever you want with it!

Please do NOT send me Private Messages through the Samba PM System (I will not see them). Send me an e-mail to john at aircooled dot net

"Like" our Facebook page at
http://www.facebook.com/vwpartsaircoolednet
and get a 5% off code for use on one order for VW Parts ON OUR PARTS STORE WEBSITE, vwparts.aircooled.net

[mark tucker]

[modok]

Scat gland nut, 350 ft-lbs

It'll work.

I'd gear it for for 6-8 lbs
Try it, if you don't like it then try something else. All you can do.

[Joel]

I ran a Toyota supercharger on a stock 1600, 8psi seemed to be it's happy limit, i did have it up to 10psi for a while but I wouldn't run over that if you want it to last
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

[clonebug]

[Jakeman75]

Should I put a blow off or intercooler on it and a friend of mine has a turbo with a carb on it but it’s on an old mg

[Jakeman75]

How do I find the compression after boost for an engine

[oprn]

I don't think there is a way to measure that. I suspect it is a theoretical value done with a calculator.

[clonebug]

[pondervwmike]

https://www.thesamba.com/vw/forum/viewtopic.php?t=555390

Maybe some useful info here
_________________
1967 Cal Look Beetle Street Car in re-restoration,customization. Mom and Dad bought it in 1983 when I was 4.
2010 VW Tiguan
2000 BMW 528i
1997 Jeep Cherokee
2127cc build thread https://www.thesamba.com/vw/forum/viewtopic.php?t=681556&highlight=

[nbuscemi]

Im running 7psi on a stock 1600 DP (Mahle pistons and chevy valve springs are only mods) with a t3 50 trim. No issues so far. Keep in mind, I converted to EFI which keeps AFRs perfecltly at 12.8:1 under boost.

-Nick-
_________________
-Why buy it when you can BUILD it?-

[oprn]

It all fits under the lid! Nice, I like that.

[Mavelotta]

I'm still developing this, but I am really happy with everything so far. Even though I love turbos the added torque from a supercharger is pretty great. Once I have the platform all ironed out, I would like to add a turbo in addition to the supercharger A couple weeks after this video I put on my small pulley to see what kind of boost I could achieve. My goal has been 1bar. Although I am not sure I can get there right now I was able to make 9psi at 2000rpms. It makes for a 1600 that drives like a 2L The new problem is heat management at this boost level. I will be going back up in pulley size to lower the heat output of the supercharger to find that happy medium of power and efficiency without additional cooling.


Link

_________________
The Dub Shop
[email protected]
Facebook-Tech-Store