Turbo info?

[brownprimer]

Is there a magazine article, a good book or something on building a good turbo system for an aircooled motor?

[The Noof]

Search "Turbomania".I hear it's a good read.

[miniman82]

It doesn't matter that the engine is aircooled, all of the things that apply to waterpumpers applies to VW engines (aside from the watercooling of the turbo). What exactly are you looking for? Exhaust info, fuel info, turbo basics? I built my own system from scratch, it's not so hard.
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[brownprimer]

I want to see if I can build a sytem of my own. I just need to find a good book or something to help. Some advice from some who has done it themselves would be nice too.

[brownprimer]

miniman82, do you have any pics and info of your turbo system?

[miniman82]

See my sigline.
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[DropTop]

Try this Its what helped me
http://www.shoptalkforums.com/viewtopic.php?t=1086...ae2188bcfd

do you want to build a draw through system or a blow through?

[brownprimer]

miniman82, dam nice job on that turbo, i didn't watch the videos, i'm on dial-up. sweet location for the turbo too!

Droptop. I don't know if it will be a draw through or not.

I was looking at all these other options for my engine. bigger heads, larger cam, dual weber 48's, bigger exhaust and so on. Then i realized i could turbocharge my engine for about the same $, if not less and maybe get more out of it.

[miniman82]

Well, draw through is the easiest. Let's start with the basics-what size engine do you have, and what do you have inside the case? What heads and cam do you have? Do you think EFI is outside your realm of possibilities or budget?
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[DropTop]

I got the most gain for the least buck by turbo charging, that said I went with a junkyard setup. Used a t25 from a saab and fuel pump from a ford f150. built the header and used cb's carb hats and boost sensitive fuel preshure regulater. I went with a blow through set up b/c it was my understanding they performed better in street cars (when u werent always at wot) However a properly built draw thru can work on a street car.

[brownprimer]

I have a 1915, counter weighted crank, cb performance cam #2242, cb 044 supermag heads w/ 40x35.5mm valves, chromoly pushrods, stock ratio rockers. probably no EFI for me.

[miniman82]

If you're willing to lose the rear cooling tin, and possibly trim your apron a tad, draw through is what you're looking for. Based on your cam selection, I'm going to assume you have compression in the high 8 to low 9 to 1 range? You'll need to drop that to closer to 8:1 or lower for turbo use.
You will have lumpy idle with a cam that long. I have the 2241, which is a tad lumpy on my 1915. The 2242 will be worse, especially with the long runners of a draw through setup.
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[brownprimer]

What is a couple of cams that might work well? I think my compression is at 8:1 but i will have it checked. Anything I need to do to my heads? They only have 4000 or 5000 miles on them so they are in good shape. My rear apron is fine for cutting up.

[The Noof]

Web racing has a nice turbo grind, # 218.When looking for a turbo grind, keep the duration to 280 or less.Turbo's like lift, though.Also, short overlap is good.

[miniman82]

2nd that, Noof.

You heads may or may not need work, depending on what your current compression ratio is. The Engle 110 grind makes a good cam for that engine size, the 2241 I'm running now is very similar.
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[KennyD.]

[brownprimer]

KennyD. What kind of turbo are you running? How much hp to the ground do you think?

Just ordered a copy of turbomania from cbperformance.

I am looking to have at least 150 hp, of course more is better. If I get the right combo together and happen to get 6 or 7 hundred thousand ill be happy too.

[miniman82]

[brownprimer]

6 or 7 hundred thousand hp, yes. For some reason my dreams never come true, maybe i'm aiming too low.
I think maybe a draw thru may work. I am going to call around to some junk yards in denver next week and see what I can come up with. Unless I find a workable used set up. I've heard that running a setup under the decklid can make the engine run to hot, is this true? The stealth look would be alot of fun. Yet the turbo sticking out the back a foot is awesome looking. So either way. Should I start pick gear ratio's after i get the turbo system? right now i have- 3.88r&p 3.20/1.84/1.48/1.04. i'm a little afraid that the 1st gear might be a bit tall

[miniman82]