Supercharger boost?

[Der6VoltFahrers]

Sweet

[grueni]

today a little bit dynotime.
did a mistake and had about 9,3-9,4 AFR but needed 10,5 for fat but good power. but that i found out on the way to the dyno so i just did it.
with the fish carb i only see 14psi on the gauge but this is ok.

alot of torque! about near 150nm from 2000-3000RPM

i am very happy, hoped that it will be 75hp but with the only 14psi and not 17 like with my pci34 + the bad AFR it is very good.

70HP at 3900RPM
150NM at 2000RPM....little screamer is a nice dayli driver

and this are stock heads with 29,6mm inlet and 28mm exhast. just with okrasa cam and abarth exhaust + special metal exhast valves vor longlife.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[Jens-Ole]

Do you have a picture of how it looks now?

[grueni]

not exactly i put one somewere into the net but don't find it at the moment.

it looks kind of the same just the bonnet is closed
the dyno here was with the fish in it and 0,9 bar of boost but way to fat mixture. its not that easy to bore the fish right. i will solder the shaft agoin in august and do it again. but this season i don't have the car at my place i drove it 3 weeks ago and it was alot of fun since that longe time.

since i have that good results with the 1200cc turbo i have plans also go over to turbo on the 36hp engine. so if somebody want a bolt on 70 hp 150nm supercharger kit. just PM me.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[grueni]

updated the kit:
15.000km now on it with the pci it has 1,1-1,2 bar of boost(16-17 psi).
had a little backfire month ago, ignition problem or valvetrain. doesn't matter anymore. rotor turned a little on the shaft, fixed that and weldet the gear to the shaft...save now. but for sure wouldn't do that if i would not add a safeguard. a snoozie valvo/pop off on the manifold.
now it is powerfull and safe all day long. with the 1,1-1,2 bar it should be around 80 hp and 160-170 nm??? will not dyno it agoin it is fun to drive it on full boost all day long.
love that engine.

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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[VWporscheGT3]

man what a beautiful workshop.... very jealous very jealous! I love watching you vintage power guys do your thing its awesome! very inspiring!
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If you have any questions about Forged ICON 4032 VW pistons just shoot me a line.

[skyto]

You made /plan to make a pop off valve mod, if so, can you give the details of the valve?

What's the water/methanol set you are using?

Lastly, what's your PCI accelerator pump type, rich, lean, neutral?

[grueni]

thanks, it's the workshop off a mate. he do all the welding that i have to do because if i would do it in compare it would allways look like crap beside his stuff. he is professional welder. this is just a part. the room where i did make the foto is full with a machine park that i can use for my stuff.

so today i will machine a 36hp case for 84mm pistons on the mill and starting to make a tool to machine the liners. cant wait to build this stock wide 1640cc based on the medusa engine stuff.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[grueni]

[skyto]

Thanks for the explanation..

For the accelerator pump, yes I mean the valve for (power?) fuel. With the NSU and BMW versions it's on different sides. Aftrer squirting the extra fuel the other one stays open and the other closes if the gas pedal is still pressed. Industrial versions may not have this valve. I have an industrial 32 PCI without the valve and I'm a bit lost with the jetting.

http://felix03.jimdo.com/die-vergaser/der-solex-34-pci-vergaser/vergaserhandbuch-34-pci/

[grueni]

on a supercharged engine use allways a carb with accellerator pump or a pressure carb like an sc or cv40- but i believe they also have a pump. the cv40 that i used once had one. the way from the manifold to tha head is long and also you have uge jumps in pressure with a supercharger...without a accelleratorpump you will allways have a lean spot when hitting the pedal.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[skyto]

I wrote that in hurry. I do have the accelerator pump, it is just the normal type, like 28PCI pump. The code that's stamped to the side of the pump is 72.

I was wondering if you still have the BMW type accelerator pump. You know these things already but I'll write this anyways for others to find.

The 700 engine had 2 cylinders. So it's ok to use dual BMW 34PCIs with four cylinder engines. But one BMW carb for 4 cylinders needs a different accelerator pump, especially when supercharged. This link shows the BMW accelerator pump is of the weak/lean type.

[TomSimon]

I also think it is great that you have been experimenting with a collectable Fish M2 carburetor! Cool stuff!!

For some reason, I am fascinated by the folklore surrounding Charles Pogue's "Winnipeg", the Fish, and the other super mileage carburetor designs. Woodgas burning automotive engines, too.

Anyone else interested in high mileage carbs should start with this link: http://www.boni.com/fish/

[beetlejooz]

Is it possible for you to post detailed photos of the mounting position of the supercharger to the motor and the brackets or whatever you used.

Im in the process of locating an AMR500 and a 1600SP.
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'63 Beetle - daily driver = (O\_I_/O)

[grueni]

at the moment no, because the car is in wintersleep 70km away from me.
but also it will not help. fit a carb, make pulleys and than build the holder ... be very carefully in bringing everything in the right place. every mm every degree will make in instabil and will rob hp over the beltsystem. pics will not help. out it where you have room for it and make it strong.

currently i still have a 80% finishes amr500 set to sell für typ1 engines.
depends on rpm its a 65-130 hp setup with different pulleys. it just neet a t piece manifold an a idler and little work to the holder.

pm with your email if interested.
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[James D]

I was looking at a bunch of Aisin 300s today, but they were a little too expensive to make me buy one. Interested to hear about your idea for kits.

[Marco H.]

That's my ex-beetle.
Here is how she was during my ownership (restauration):

http://www.hammerand.de/vw/vw56.html
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My Homepage:
Star-Wars-Costumes / VW Aircooled Brasil / Parts-Shop
http://www.vwantigo.com

[grueni]

exactly!
and she will be on the road again during the next 2 weeks. winter speep is definitly over.
how are you marko!
big wishes to brazilian my friend. i have to thank you alot for this beautiful lady!

wishes
chris
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[grueni]

so its time to post the tlan for stage 2 of this setup

in summer i will open the case, messure everything, refresh the case and all wat needs some machining.

currentliy:
53 case std.
77mm AA pistons
stock rods same weight
stock unballanced crank
stock heads unported but with a nimonic exhaust valve 28mm
std rockers lighter
stock lifters and pushrods
stage 1 camshaft
porsche flywheel with 9 spring pressureplate and stock clutch
stock manifold changed with amr300 supercharger and modified 34pci carb
abart tip4 muffler
6,8:1 compression

made 70 hp at 3900 rpm and about 150nm from under 2000-3000rpm
with 0,9 bar of boost
drove it with about 1,1-1,2 bar all the time so must be around 80hp/165nm

stage 2:
same case but with full flow and external oilcooler opened für 83mm pistons and liners
crank i will use my dDPR 64mm counterweighted,ballanced and the matching flywheel + the ballanced rods all from my mymedusa engine.
pistons typ1 or porsche 356 with my 80S kolbenschmidt 83mm pistons
heads stock ported with 33/28,x mm valves new guides + a 1200 or 1300 typ1 manifold. same supercharger same supercharger rati. maybe another carb SU ore something. but first the pci34 with a 30mm venturi.
maybe with 1,35:1 ratio rockers but think i dont need them for my goal.
stage 2 camshaft
7,8:1 compression
the 9spring pressureplate will get some stiffer springs + stock 180mm clutch
merged 32mm header and csp retro muffler

goal is to open up everything a little to raise the peak hp from 3900 to 4500RPM and with all the stuff make it cool better with the full flow oil cooler and in fact of the less boost it will have.

goal is to reach 90-95hp at about 4500 rpm and more torque over a bigger range.

the heads:

compression raise will make about 10% more per piont
less backpressure will free some horses too
the raise from 3900 to hopefully 4500RPM will do the moste
the more cc also will do something + lowwer the boost that is less hp that the supercharger needs and less heat in the manifold.
100hp is not impossible but this would be the absolute top the blower should do in a daily driver mod.

the very simple way of calculationg back from the dynoed engine:

70HP/1,9 (boost) * 2,15(dayly driving boost)=79 hp
79hp* 1,1 (compression raise from 6,8-7, = 87 hp

87hp /3900rpm*4500RPM(if the hp gragh is kind of lineary) = 100hp

so if everything is done perfekt and the engine will breath for peak hp at 4500 rpm 100hp is not impossible
same calculation backwards for the supercharger as a airpump says 105hp is possible so lets see how perfekt i could get my goal.

wishes
chris
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

[grueni]

so its not the right place i know but maybe somebody is searching exact this for a nice powerfull 36/porsche engine.
in fact of the stuff i have for later builds i will sell my very very well done porsche 356 heads...i never gave up the plan using them on a 36hp but ended up now in fact it's not the right plan if i really someday will be at bonnvile and my secret weapon heads will have same totential+. so they can go...i will ship world wide for sure.

http://www.ebay.de/itm/320901672994?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

wishes
chris
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )