CB Hideaway and Junkyard Turbo

[rubenski]

About the same as on my subbie turbo 1641!

[buguy]

How much YOU boostin?!
And is that a chassis dyno or an engine dyno?

[rubenski]

That was 10psi. 3rd gear pull chassis dyno wheel hp.
Remember this ain't no stock engine..
It's all in my build thread.

[buguy]

Damn! I didn't figure it was stock by your rpms on the dyno sheet

[Dan Dryden]

I’ve just dug out my Dyno sheet from 2013.... looking again, with the benefit of more knowledge, I think there is certainly more to extract from this engine.....

- The boost control could be improved..... especially now that I have a new Turbosmart WG38 repositioned to the collector.

- It looks pretty asthmatic, with the torque dropping as though it’s been strangled after 4500rpm (I’m running a TCS10 cam with 1.1:1 rockers. I would change the cam in a heartbeat if I didn’t have to split the case in order to change it..... switching to 1.25:1 rockers could help and the match porting and polishing of the turbo housings will probably help a little too).

What I know now that I didn’t know back then is that it’s all about good, unrestricted flow through the engine.

I don’t plan to develop this engine much more..... maybe add some 1.25 rockers, some water meth injection and give the inlet path a good port and polish..... Then I’ll just enjoy what it gives me..............

......... Whilst I start building the 2.1 wbx engine I have sitting at the back of my garage. (A project is never finished!)

[buguy]

Looks good to me! I'd be stoked to get 200 hp!
And I know what you mean. When I put mine together I bought those big beef manifolds and didn't touch them. Now with the plenums welded on I can't get to it well enough to ever open them up. I would just about have to start over with it. What a dummy!

[Dan Dryden]

Looks good to me! I'd be stoked to get 200 hp!
And I know what you mean. When I put mine together I bought those big beef manifolds and didn't touch them. Now with the plenums welded on I can't get to it well enough to ever open them up. I would just about have to start over with it. What a dummy!

Luckily, I did hog out and port match my end castings.... I just didn’t pay much attention to the final finish of the surfaces..... I left them quite rough and pitted, whereas I should have made them smooth and shiny before the injectors and slightly rougher after the injectors to help air / fuel mix...... the smooth surface helps with flow and air speed (in my opinion).

[buguy]

I guess it's nothing a couple more psi of boost wouldn't overcome.

[Dan Dryden]

This is an onboard video of my 1776cc with TD04

https://youtu.be/OFirmK0wSuA

[buguy]

That was awesome!