JJR330 Turbocharger with Internal Wastegate

[lowfat_hg]

Maybe two of these?
http://cgi.ebay.com.au/JJR330-Turbo...ryZ72478QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

For the price they seem fantastic. Water cooler for reliability. your thoughts please?
see also http://www.otomoto.com.au/kkrturbo.htm

 

[Toysrme]

looks like the typical chinese turbo's we import into the US for about $250-400aud all day long. otherwise, i dont live down there, no idea who JJR is, but looks cheap chinese to me.
buy a used turbo & rebuild it. not always as cheap but no question for reliability.


much better choices than knockoff T25's anyways.

 

[lowfat_hg]

Thanks for the reply toysrme, was starting to think noone would...
Still unsure about whether they are a good deal.

Gentt are getting good results on commondores, (check link) but your idea of getting some rebuilt has merit.

I live in Darwin so that is always a challenge, can you recommend what type and where to get them done?

also, what is a sensible amount to spend on such a deal?

thanks

 

[lowfat_hg]

forgot the link!

http://www.ls1turbo.com.au/ttspecs.htm

 

[JustenGT8]

KKR are gaining a bit of a following here in Oz. They are from China but much better quality than the usual garrett TO4 knock offs (which i have yet to have any problem with). Haven't heard of any failures yet with KKR and they are being used in a few big selling mainstream kits.

They also do great IC and hose kits so one of the more reputable Chinese companies i think?

 

[lowfat_hg]

I cant find any comp maps for these, but my feeling is that a twin setup should perform as well as a single t70. i figure for the lower setup cost and ease i will go for a single.

 

[shallis2]

justen,
are you running one (or 2) of the kkr turbos?
i don't believe all Chinese stuff is crap but finding out whats the good stuff is difficult.

Wayne

 

[JustenGT8]

I'm not running either but know quite a few that are and if i started my proj now would happily use the KKR turbos

 

[Toysrme]

that size turbo would be good for about 500bhp, but as soon as you hit full boost it would be in compressor stall until the rpm's rose.


i would use some twins abit bigger. full T3, or small t3/t4 hybrid classes.

 

[mdcmotorsports]

If you are going streetable...

And you're going to do a TT project, go twin GT28's and call it a day.

Or if you're going single, go with a Gt35R and call it day.

 

[XR8tt]

Two Precision SC61's would be awsome and quite cheap...Also....

 

[mdcmotorsports]

Two Precision SC61's would be awsome and quite cheap...Also....

If they are the SC61's that I have seen, I think the turbines might be a little laggy on the 1uz set up in twin format.

 

[XR8tt]

If they are the SC61's that I have seen, I think the turbines might be a little laggy on the 1uz set up in twin format.

Yea
With a .48 AR on a 4.0 Ford sohc 6 which has 9.2 comp, they came on song around 2500 and 1800 on a 5.0 V8 where they where before being fitted to the 6 cylinder...
There are many versions of these, with various exhaust trims etc...
These are still quite big engines and require a reasonable sized exhaust housing if you want engine to rev and have power in up range as well...
Strange as it may seem a slightly laggy engine is easier on rotating assembly.. With 9.0 / 9.5 compression it would still be very throttle responsive... Most 4 valve motors can run reasonably higher compession when tuned for it....
BUT as usual it depends what you want from an engine etc....