Animal vs. Raptor; tubo build up

J

justjuiceit

New Member
#21
#21
65ShelbyClone said:
Do you have a source for the right turbo already? If not, I would suggest picking an engine after you see what turbos are easily accessible. Ideally you size the turbo for the engine and not the other way around, but things are different when the small turbo options are so limited.
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I have seen some small IHIs floating around recently. Which turbo did you use again? I may have found a even smaller turbo than that! More than a few people run a turbo that is too large for the engine. If the turbo is too large on the bottom end, which more than likely it will be, I just plan to use nitrous to spool the engine/turbo up to a range where it producing some boost. Speaking on that note, I just got my 5hp nitrous jets!
 
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65ShelbyClone

65ShelbyClone

Well-Known Member
#22
#22
I have a Garrett GT15 that I used on my 400cc Briggs flat head. Margaykart79 has an IHI that is even smaller and it's still on the large side.
 
J

justjuiceit

New Member
#24
#24
Unfortunately, everybody and their mom are jacking up prices on small turbos recently.....the prices for small turbos has skyrocketed within the last month.
 
65ShelbyClone

65ShelbyClone

Well-Known Member
#25
#25
Yeah, interest in them and discussion about them has gone up as well. I see topics about turbocharging pop up almost weekly on the kart forums. Mostly it's kids with no means to really make it happen, but it still gets everyone thinking about them.

Margaykart's turbo is an RHB3. It's the same as an RHF; the B is just an older designation. There is also a slightly smaller RHB2, but those are like hen's teeth.
 
J

justjuiceit

New Member
#26
#26
What upsets me is that these kids are snatching them all up! Then they hook it up and seize the turbo due to lack of lubrication or just let it sit in the garage, since they have no means of actually hooking it up! What is really getting my goat on ebay is that all these people with horrible feedback are outbidding me.....
 
65ShelbyClone

65ShelbyClone

Well-Known Member
#27
#27
I see it too. Lots of inexperienced people think a quick run or two(or ten) with no oil won't hurt a turbo. Running a jet engine with no oil has about the same effect. :glare: There are videos all over youtube and streetfire where a turbo was just slapped on a lawnmower by some bored people and run until it died.

Ask GTO what he thinks of Ebay....

I think something weird is going on over there lately. A couple things I'm watching got bid up 50% over going rate. They are completely unrelated items,too. :thumbdown:
 
J

justjuiceit

New Member
#28
#28
Yeah somebody mentioned they dont like the political stance of ebay and paypal. What is their stance exactly? I still have found a couple of good deals despite some of the parts being jacked up....
 
65ShelbyClone

65ShelbyClone

Well-Known Member
#29
#29
justjuiceit said:
What is their stance exactly?
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I'm honestly not sure. I remember reading something about their retarded reason for not allowing auctions for some type/category of item, but not what it was/they were.

I found some little MHI turbos, but they are still on the high side and the prices are unattractive.
 
M

MargayKart79

Member
#30
#30
Mostly anything really small is a higher price due to the precision required to make the smaller turbos.

The RHB3 turnned out to be a good fit too, we actually mounted it to its own test fixture and made our own flow chart. It would kickin around 3500-4200 rpm if I remember right which is decent for a 8500rpm redline. I still need to finish mounting that to my kart. I bought a ton of new parts and then got distracted by my car.

And ya I agree those videos of huge turbos on a 2hp motor really tick me off, its so pointless and they think its so cool. Mostly cause videos like that detract from watching mine haha :) just remember this is going to cost you at least 1000 dollars.......and it all depends on having the right turbo

Oh also, OHV is better for turbos I just had more experience with the 5hp flatty and its cheaper to rebuild in case you blow something. With the amount of parts you can get for it you can build a real sick motor. Shelbyclone had the right idea though, use a larger motor, you get more power and its easier and cheaper to find a turbo to fit it.
 
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M

MargayKart79

Member
#31
#31
One other thing, try to find a turbo thats used commonly, we had to make all our own flanges and gaskets for the RHB3 because we couldnt find anywhere that would sell them.
 
J

justjuiceit

New Member
#32
#32
65ShelbyClone said:
I see it too. Lots of inexperienced people think a quick run or two(or ten) with no oil won't hurt a turbo. Running a jet engine with no oil has about the same effect. :glare: There are videos all over youtube and streetfire where a turbo was just slapped on a lawnmower by some bored people and run until it died.

Ask GTO what he thinks of Ebay....

I think something weird is going on over there lately. A couple things I'm watching got bid up 50% over going rate. They are completely unrelated items,too. :thumbdown:
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Ok, 65, I think you are on to something. I think people are artificially jacking up the prices! Check out this link on the bids for that junky electric turbo:
http://offer.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewBids&item=120160157444
What is up with the weird name formats?! :confused: I really think there is some kinda scam going on.
 
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65ShelbyClone

65ShelbyClone

Well-Known Member
#33
#33
When the bidding gets over a certain dollar amount, the bidders' names are hidden.

I'd be more concerned that all the bidders are REALLY new. Either they're stupid or are in fact part of a scam.
 
J

justjuiceit

New Member
#34
#34
Does anybody have a good inexpensive electric pump to be used as an oil pump? I am trying to figure out a "junk yard" part that would work. I read somewhere that you do not have a ton of pressure (like 15 psi) for the bearings. Has any car manufacturer ever used an electric pump instead of a shaft driven one?
I was wondering if this could work:
http://cgi.ebay.com/ebaymotors/PORT...014QQitemZ330164162949QQrdZ1QQsspagenameZWDVW
 
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65ShelbyClone

65ShelbyClone

Well-Known Member
#35
#35
Journal bearing turbos need more pressure than roller bearing units, but I don't think 15psi is enough for either. The first hard part is finding one capable of 30-40psi. The second hurdle is finding one also capable of high temperature. Then you still have to guesstimate how much volume is needed.

Margaykart79 used an electric pump. As you may have read, I used an ag sprayer as a temporary oil pressurizer. I was able to pump it up to 35psi and never got any smoking until the engine itself started coming unglued. The long-term plan was to use a small(VERY small) Kayaba power steering pump I have and drive it from the crank.
 
J

justjuiceit

New Member
#36
#36
I read somewhere that the Turbo Sprint used a remote oil pump...I am going to look into that. Total score at Pull-apart today! I got some parts for my Jag, almost new fuel tank just sitting in the back of the car for $5! Also, I got a Saab intercooler, some kid rang me up and I just threw the receipt in with the parts... when I got home, I looked at the receipt and found out he didnt even charge for it. I think this intercooler will be perfect for small engine turbo
 
65ShelbyClone

65ShelbyClone

Well-Known Member
#38
#38
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