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You too can build your own turbo system
I was telling Sonnett about this thread earlier so I thought I would shar it with all of you. Take the time and read through the whole thread, its only two pages long and well worth it IMO. This kid builds his own turbo system at home using swimming pool parts and no engine management. It is great!
Home Made Turbo
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red Last edited by Fabio421; 06-20-2007 at 06:30 PM.. |
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06-20-2007, 06:10 PM
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Yeah he built it, but can't drive it? I wonder why?
When I was a kid, a friend bolted up a helicopter turbo to a Scirocco. It too was "rigged", but with hard pipe. It was quick once spun up, until the motor scattered a month later. Looks great on stickered rice, would be a farking crime on a 928.
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77 Euro SC 3.0 - The Whale 86.5 928S - The Shark 2001 Volvo V70 XCountry - The Problem 1999 Landcruiser - The Wife's |
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06-20-2007, 07:36 PM
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That kid has been driving that car since november. He had a problem with his rigged boost controler and was boosting at 15psi when he thought he was at 12. The engine is now knocking. LOL
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-20-2007, 08:29 PM
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Its kinda rough, but way to learn stuff.
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US 83 zinc metallic 5 spd, aka the nice car. Euro 85 black, 5 spd, the fast rough track car maybe car. SOLD Euro 84 red, AT, only car in garage in years, my parts car, soon to go last 7 years. |
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06-20-2007, 10:46 PM
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Architecture & Porsche's
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No comment is the best comment sometimes.
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Porsche Club Racing National Scrutineer '89 Andial 951 '82 928R '74 911 RSR 3.6 |
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06-21-2007, 05:05 AM
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I really do like the clear tube on the intake, maybe light it up with some LEDs that change color.
Until you actually try something I think most people don't fully appreciate how hard it can be to make a functional system that also looks nice.
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US 83 zinc metallic 5 spd, aka the nice car. Euro 85 black, 5 spd, the fast rough track car maybe car. SOLD Euro 84 red, AT, only car in garage in years, my parts car, soon to go last 7 years. |
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06-21-2007, 07:32 AM
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OK. How about these?
 
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-21-2007, 07:50 PM
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I just doesn't look "Porsche" to me, needs a layer of oil on the bottom.
 Don't those turbos cook some hoses in that location? I'm not looking forward to posting the first pictures of any of my own projects. I still have a limp from the reaming I got over my rubber ducky antenna, but I like it a LOT more than the pesky stock unit going up and down.
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US 83 zinc metallic 5 spd, aka the nice car. Euro 85 black, 5 spd, the fast rough track car maybe car. SOLD Euro 84 red, AT, only car in garage in years, my parts car, soon to go last 7 years. |
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06-21-2007, 08:36 PM
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Quote:
The twins have been removed and are being relocated to the manifolds. Not because of hoses but because of fear that the timing belt may get cooked. This set up was "cooked" up by Don Berry in Kissimmee, FL. The top pic is of a car that I am not familiar with. I have alot of build pics of the car but I have no info as to who owns it or how it is doing. Quote:
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-22-2007, 04:07 AM
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I contemplated that design, but excess heat, & lack of plumbing space on the driver's side, + WHERE's THE A/C compressor?
Not in Texas, I love my cold AC. Pass. Also, two other things: no access to work on the front of the engine, those turbos will cook all the rubber/plastic components on the front of the engine: shorter belt life, ruptured radiator hoses, & adding even more weight in the nose of the car: pass. I'd also think that the added heat collection would cause hotter running conditions: the 928Turbosports kit does the opposite: reduction of engine bay plastic/clutter, more air circulation, noticably cooler running conditions on your temperature gauge. Mark (that's my opinion & I'm entitled to it.
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Porsche Club Racing National Scrutineer '89 Andial 951 '82 928R '74 911 RSR 3.6 |
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06-22-2007, 06:53 AM
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Fabio Those are my old callaway manifolds that he is using with t3 or t4 turbos on them.
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The beast 1984 928s twin turbo 5speed LSD/ 508.6RWHP 495RW ft lbs 12.5 psig manifold pressure, MS2 and EDIS-8 nikasil block JE 2618 pistons (TripleT). 2001 AUDI A6 4.2 chip 320 hp. 2002 CHEV Tahoe 4wd. 1971 sonett race car GT4 National Champion now GTL class car sold. The words of a Ford GT man. ( Damit i need to get some turbos) |
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06-22-2007, 03:51 PM
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Quote:
I spoke with him today. He's putting the finishing touches on a built ricer for his step son. 20 psi.
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-22-2007, 04:29 PM
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The best place for the TCs on a 928 is at the low and back position just aft of the No. 4 and No. 8 cylinders. This gives quick light-off and packages pretty well. Poeple often make comments about how you need a particular manifold design for effective TC operation. There is an article in one of the latest Chevy power magazines of a Gale Banks 1100 HP twin turbo Chevy wearing simple cast iron log manifolds...gotta love that.
I had seen those yellow TT pictures a while back...looks pretty thrown together to me. I also agree with the comments on A/C. It gets pretty nasty here in the summer months too. I hope Don is able to use the old Callaway parts I sold him last year.
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Kuhn Performance Technologies, LLC Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane. Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane. |
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06-25-2007, 07:59 AM
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Don has his plate full right now but he is planning on using them soon.
Do you still have any 16v manifolds or jigs for 16v manifolds?
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-25-2007, 08:32 AM
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I have the jigs for the 16V, but they are not to my standards for production. I think a carbon copy of the 32V manifolds adapted to the 16V would be the best choice considering all factors. I still plan to do this some time in the future for the Callaways (both of them).
The problem with engineer types like me is we never stop trying to make things better. I finally feel like I have reached a point in the manifold design that is perfect for the 928...that means compact, powerful and easily fitted to the engine. I'm considering getting the 32V setup done in cast iron for production purposes.
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Kuhn Performance Technologies, LLC Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane. Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane. |
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06-25-2007, 02:03 PM
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Any comments on the bellows used in the 32v manifolds?
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US 83 zinc metallic 5 spd, aka the nice car. Euro 85 black, 5 spd, the fast rough track car maybe car. SOLD Euro 84 red, AT, only car in garage in years, my parts car, soon to go last 7 years. |
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06-25-2007, 04:24 PM
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Exhaust manifolds, between the front two ports and the rear two ports in the main portion of the "tube". Its some kind of expansion thing I think.
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US 83 zinc metallic 5 spd, aka the nice car. Euro 85 black, 5 spd, the fast rough track car maybe car. SOLD Euro 84 red, AT, only car in garage in years, my parts car, soon to go last 7 years. |
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06-25-2007, 07:57 PM
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That is there to allow the manifold to flex during expansion and contraction due to temp.
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-26-2007, 06:01 AM
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What a lot of people forget is that stainless expands about 50% more than mild steel. You don't need that joint if the manifold design accounts for thermal expansion properly. That joint is also there to aid in manufacturing of the stock manifolds...it gives some compliance between the two branches of the manifold, thus taking some of the complexity out of the entire fabrication process. The best TC manifold is still a cast iron piece...dimensionally stable, low alpha and cost effective...and they can be made to flow very well too.
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Kuhn Performance Technologies, LLC Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane. Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane. Last edited by Herr-Kuhn; 06-26-2007 at 01:24 PM.. |
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06-26-2007, 08:01 AM
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Its much easier to weld stainless than it is to weld a casting.
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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06-29-2007, 06:23 PM
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