Precision Billet Turbos

[Manuel Kasko]

And it's on low boost

I'm sure it would crack 300 if the guys at JEM felt okay pushing more boost into it. But again they have their reasons for not doing that.

Waiting on a payment for a set of rims I sold then I should be able to show some water meth results to people interested in what it can do with ping resistance.

[jet_r31]

Well the ching ching cooler is doin a good job because the outlet pipe up till a bit past the battery tray is nice n cool, BUT once you reach the rad/fan area it heats up pretty quick all the way to intake mani. So I know its not the cooler thats why I wanted to re-route and heat wrap that bit of top pipe away from rad/fan and cam covers

Mines the same on stagea, hot as f**k on that corner and side piece, then water is injected near the BOV , after that its cooler..

[rondofj]

i was making 641nm, so looks like the two turbo's are similar on that boost, not sure about the housing differences though..

its a good result though, looks like 16psi, probably needs atleast 20psi to really unleash

Thats a pretty good point, I realise that I'm making 286rwkw on 16psi not 18psi, as it drops down to 16 up the rev range where the power peak is, so its a good figure, what will happen at 20-22psi I cannot wait, or 26psi if I add water injection.. 2nd gear can be pretty scary, even with a moderate stab at 4000rpms it gives a nasty lurch forward and skates sideways / wheelspins about a bit, 3rd gear same story but to a lesser extent, am running good compound tyres 18" Potenzas at the rears.. lurving it man... My dynocurve shows that it shoots up 100rwkw in about 400-500 rpms (from 100 to 200rwkw), this the bit thats fun...

[AngryRB]

Thats a pretty good point, I realise that I'm making 286rwkw on 16psi not 18psi, as it drops down to 16 up the rev range where the power peak is, so its a good figure, what will happen at 20-22psi I cannot wait, or 26psi if I add water injection.. 2nd gear can be pretty scary, even with a moderate stab at 4000rpms it gives a nasty lurch forward and skates sideways / wheelspins about a bit, 3rd gear same story but to a lesser extent, am running good compound tyres 18" Potenzas at the rears.. lurving it man... My dynocurve shows that it shoots up 100rwkw in about 400-500 rpms (from 100 to 200rwkw), this the bit thats fun...

try this, find a nice smooth piece of tarmac, let second gear come up to 4000rpm without boost, then drop the hammer and fry them for 60meters ,

awesome feeling, lol oh and PRIVATE ROAD obviously

Edited January 9, 2013 by AngryRBGTX

[rondofj]

try this, find a nice smooth piece of tarmac, let second gear come up to 4000rpm without boost, then drop the hammer and fry them for 60meters ,

awesome feeling, lol oh and PRIVATE ROAD obviously

hahahah..now that you told me, I will definitely try that out. Why are you only running 16psi on E85 (your signature), go 26psi.. Hey you the same guy as sliver33 something right?

[AngryRB]

hahahah..now that you told me, I will definitely try that out. Why are you only running 16psi on E85 (your signature), go 26psi.. Hey you the same guy as sliver33 something right?

yeah i changed my name, well the usual advice is 300kw is the limit for stock bottem end so with that in mind 320kw is a good number and looking very safe on E85, i like to stay cautious rather than see how long the piece of string is... lol.

You should go E85 next, cost me around a grand extra.

[AngryRB]

yeah i changed my name, well the usual advice is 300kw is the limit for stock bottem end so with that in mind 320kw is a good number and looking very safe on E85, i like to stay cautious rather than see how long the piece of string is... lol. Plus im working on a new project, got a cheap XR6 ute which im thinking bout turbo conversion

You should go E85 next, cost me around a grand extra.

[Mitcho_7]

Are all precision turbos oil cooled only?

[GTScotT]

All the T3/T4 ones are, AFAIK.

If you got one of their garret copy items it would have a water cooled core (IE the T28/GT30 variant stuff).

[SimonR32]

Are all precision turbos oil cooled only?

Yes.

In other news, mine should be tuned this weekend (fingers crossed). It's half tuned at the moment and goes very hard already

[KURTIS34]

i have never read my name so much on a forum before.

update jez has already told most of it but i will do it again anyway.

setup so far has put up with a drag session, private track day , 2 SAU cruises ,my wedding and a bunch of other driving.

i have been watching temps and oil use like a hawk, engine still seems very very healthy, min amount of breathing and so on.

and yes my old BOV which we installed before wakie was a massive leak no wonder it felt not as fast.

all leaks are now fixed and skybitch is better then ever thanks to jez.

below is the print out

[ahhbee]

Its very interesting to see the numbers being made with a 0.63 rear housing on the 5558, ill have to look into this more before ordering one, but is there anyone running a 0.82 rear?

[KURTIS34]

Its very interesting to see the numbers being made with a 0.63 rear housing on the 5558, ill have to look into this more before ordering one, but is there anyone running a 0.82 rear?

I'm over the moon with how much power the baby turbo put out the best part is it made the exact power I wanted

[Mitcho_7]

Going off of the road speed between kurtis and jez's graphs there doesnt seem to be that much difference between when they are on full boost.

I remeber reading somewhere that Kurtis' setuo was all in by like 3750rpm but cant recall what rpm jez was hitting full boost.

If the difference is negligible, youd almost go the ts .84 6262 just for the extra power it gives

[SRS13]

Anyone done any back to back (or similar) on the 6262 and 6266? Will be deciding between these in 0.84 TS for a 2.2 VE SR. Leaning towards the 6262 atm.

[rondofj]

I'm over the moon with how much power the baby turbo put out the best part is it made the exact power I wanted

Hey Kurtis, with that much power you could put down a high 10s quarter mile? Not sure why you got a 13.098, guess tyres/suspension/launch was the problem. I have yet to learn how to launch..

[methz]

mph indicates decent enough to low 11s maybe high 10 if u can drive on mts

[donut_kng]

Anyone done any back to back (or similar) on the 6262 and 6266? Will be deciding between these in 0.84 TS for a 2.2 VE SR. Leaning towards the 6262 atm.

i have seen dyno sheets floating around which are probably in this post somewhere anyway - which show the difference in the response between, 6266, 6466,6766 being about 500rpm on a 3.4L ...

I have even emailed precision directly who have confirmed that it would be about 300-500rpm on a 3L

[rondofj]

i have seen dyno sheets floating around which are probably in this post somewhere anyway - which show the difference in the response between, 6266, 6466,6766 being about 500rpm on a 3.4L ...

I have even emailed precision directly who have confirmed that it would be about 300-500rpm on a 3L

If you looking for a 3076R equivalent then go the 0.63/ 5558 which is what I did from research and Unigroup's advice, if you looking for bigger, then consider the 6XXX series...

[KURTIS34]

Hey Kurtis, with that much power you could put down a high 10s quarter mile? Not sure why you got a 13.098, guess tyres/suspension/launch was the problem. I have yet to learn how to launch..

I can explain my time , first time drag racing ever.

Still had suspension setup for corners .

So basically driver error but hopefully with practice I will put a time to match speed but aiming for higher speed as well.