gbentink Turbo Upgrade Users Thread (3 Viewers)

[BCR4619]

Sailor and George iirc I think Steve at EBI said he could get them when someone in the cc forum was looking for one, never asked him though on prices.

You could also ask WCC but I won't go there.

I forgot to look into the Nomad and ES2 but will send emails today.

Also is there a site showing prices for the turbo setup? A quick search on google just directed me to 'MUD lol

 

[Adam B]

Anyone running a larger comp wheel can testify that they pump nicely higher than 15psi.

My 7M-GTE turbo with 1HD-T exhaust housing seemed to be just fine holding 18psi to 3600rpm on a 4.2L engine. It just started to roll off after that. I wasn't monitoring compressor outlet temperature at that time.

If you tune to the max a stock or otherwise modded CT26, remove it and do nothing but replace the turbo and set boost the same, the bottom end difference will be substantially improved and top end, within reason should be about the same, may be better depending on what the other spec is.

Exactly what I experienced when I swapped in your turbo. Initially I didn't mess with my existing fuel settings. I did have to readjust my ball/spring boost controller to balance with the different wastgate and reduce the boost back to my original settings. The effect was more boost down low and no perceived loss at the top, relative to the 7M comp wheel.

The best way I could describe it was that someone had taken my torque curve and dragged it 200rpm to the left ... without affecting the right half. That area under the curve that was added everywhere below 2000rpm directly translates to driveability. Totally different beast.

 

[9180ltd]

if I had not just bought a new house I'd get one of these " golden goose" turbos on my rig. ..... Hmm line of credit is still an option hahaha. Graham pls pm with estimate total turn around cost to Vancouver Canada as well as common amount o time.

 

[gbentink]

For any prices just send me a pm or email me at graeme.bentink at ausenco.com

I build 7 different combos of turbine wheels, housing and comp wheels, so to correctly setup for your vehicle I need:

* boost your comfortable with
* manual or auto
* intercooled - if you have water to air I want to know intake temps because the quality of setups vary significantly. If large front mount air to air I dont need to because it will generally be excellent.
* looking for ultra clean exhaust or can handle some mild smoke.
* what power or torque do you want - they do ~ 100-115whp stock, if you want alot of power, maybe some of your goals are opposing and we can discuss a compromise that best suits you.

EDIT: And max altitude of operation

 

[ForealBoreal]

Ah the suspense is killing me!

 

[gbentink]

OK Floreal Boreal, your 1HZ should now put down ~ 60hp nat wheels. Not very inspiring hey?

I just received the dyno graph - done today. Steady state did 66whp At 1400rpm!

Note the difference between boost at steady state and in "power run" mode. At 1400rpm in power mode it makes 7psi boost and 57hp at wheels, but in steady state, like you would see loaded up, it makes 11psi and 66hp at wheels. The reason is the fast rpm ramp on dyno beats the boost response - like 1st gear when driving compared to 3rd. Bottom line is this would be awesome in the mud!

It also means that, when you do the maths, torque is dead flat from 1400rpm.... thast cool!

Engine: 1HZ
Boost - 14psi
Intercooler? - NO
SAFE TUNE - YES
Ambient Air Temp - 34C/93F (nice warm Qld day)

Tuner is very experienced and was VERY suprised at the torque curve after having fitted many other kits from well know suppliers.

This particular tuner has an injector and pump service centre too does performance injectors for 1HDT/FT and FTE.

Also has some of the countries most powerful TD42 Nissan Engines (over 300whp). For race mind you, Toyota owners generally dont push their vehicles that hard because..... they cost more!

If anyone has a car tuned by a company that can push, and Im being VERY agreeable (meaning, ultra-non-conservative) here.... more than 1450F, and let them take it home mand tow with it etc - NEVER GO TO THEM AGAIN. I just heard a story of 1700F EGT's - that is absolutely nuts. Any diesel will make a ton of power at 1700F, shortly before it melts the pistons - in particular older style DI diesels. The newer CR engines have better atomisation and can run higher EGT's.

 

[Dougal]

Nice shape to that one.

 

[ForealBoreal]

this keeps getting better. Keep the info coming!

 

[Dougal]

The boost curve looks very good, the other screen shot is just a bit too fuzzy to make out. I can pick hp, tractive force and road speed on the top. The rest is a bit too much.

Which turbo of yours was it and what is the difference to the end user between your different configurations (bad boy, grunter etc).

For EGT's, I'm at 775C sustained currently and it seems to be okay at that. It's 40km/h faster up one particular hill than it used to be.

 

[ham00]

Just to clarify the valve body thing, I've always called mine the "Extreme Valve Body", which I got through Outback Imports in Canada in spring 2007. At that time (maybe now too?) they seem to have had an exclusive distributor thing going on. They called it the "Extreme Valve Body" so I did too.

Looking at the Wholesale Automatics website: HERE I see they refer to it as either the "Stage 1 Nomad" or "Stage 2 Extreme" so I assumed mine is the S2E. I really have no idea now!

You guys be careful who you buy your auto stuff off.
I had wholesale do all their up grades on my trans & 5000ks after i was back there with black trans fluid (not burnt but black)
And that was where the fun begins.
Offroad 80's • View topic - Auto trans cooler build

Hamo

 

[Adam B]

I wasn't even aware of an alternative at the time. Wholesale seems to control so much of the market that I'm not even aware of any alternatives now!

I do know that all the stuff bought through Outback Imports for the last 5 years was coming from Wholesale Automatics. I even got in on an email exchange with Rodney giving info to them when I got mine.

 

[gbentink]

GTurbo CT26 Grunter vs DTS TD05H vs GT2860RS on 1HZ

Boost responnse, power and AFR comparison.

The genuine ball bearing Garrett GT2860RS was with additional fuel and an intercooler, hence the higher power output; but good to compare spool up even with extra fuel is not as good and boost drops away. TD05H was as supplied in the DTS Kit used by thousands of folk (nice kit too).

Basically the DTS kit and the GTurbo Grunter are run with the same fuel.

ALL runs are power at the wheels, no correction, same dyno, same dyno operator.

GTurbo: Pink Line
GT2860RS: RED and GREEN line (Red is after a tune)
DTS TD05H: Blue line

In all cases, steady state operating (loaded up a hill at setady rpm foot flat) will yeild higher boost numbers in the low rpm, but the same dyno roller ramp rate was used in all cases, so you get the idea relatively speaking between the options. No turbos had a boost controller fitted

What to look for?

* Air fuel ratio - the higher it is the less soot and lower your EGT's are. Comparing 17:1 to 20:1 would be over 100 degree's EGT temp difference and a big difference in safety.
* Boost response; the earlier the better
* Boost ramp; this the the turbo "lag as it spools. You can see the GT2860RS is pretty good, having about the same ramp. However, it is with a large amount additional fuel, which for thiose who have tunes a diesel knows that it makes a huge impact on boost response.
*Maintaining boost through rpm. This is wastegate control, you dont want your boost tapering with rpm since this affects your EGT's. At high rpms your EGT's will be higher anyway (for reasons I wont go into here), thus a rising AFR is excellent

What I am trying to convey here: The GTurbo with less fuel made more boost earlier in rev range and lower EGT's everywhere with a cleaner exhaust. I am happy about that, because it was the goal

 

[wrongway around]

are they all running the same exhaust housing or are they settup to match that particular housing ,cause i see there is big differences in the casting dia. and chamber flow

 

[gbentink]

Hi, I am not sure what you are referring to really - comparing one to another and GTurbo or stock CT26? Have you had two side by side is that what you mean? If I understand the question correctly, they are different depending on what the vehicle it was going on to and what the owner wanted. I also do porting on some, again to change certain characteristics. From Factory there are differences in exhaust housings in different years and markets. The largest is the 7MGTE version

are they all running the same exhaust housing or are they settup to match that particular housing ,cause i see there is big differences in the casting dia. and chamber flow

 

[Tapage]

Well .. I'm oficially in this club after have that turbo sitting in my work bench for more than year ( or 2 . ? crap ! )

It came along with more upgrades that I gonna document in another thread ..

It took me good 12 hours of labor ( I'm working alone and I'm slow worker ) .. just have few days using it .. ( did it last weekend ) still need to modify my aneroid pin, my main fuel screew it's in .. ( can't go any further coz won't hold my idle speed ) ..

So far after some boost controlled adjust .. today ( need to back it of a bit more ) hit 26 PSI in less than eye blink .. not to mention what happen when I nail it with my dual nozzle alcohol setup .. WTF ..!

 

[Tim-HJ61]

And now you're kicking yourself for those two wasted years where it sat on the bench!
,

My GTurbo is still going strong. I advanced the timing for a while, but lost all the low down turbo response. Now timing is back very close to original, and I'm enjoying the great driveability of the GTurbo and fun on wet roads. Even got some wheel spin on a wet road taking off from 5-kmh in 2nd gear. !


Tim

Sent from my iPad using IH8MUD

 

[Tapage]

Actually I was playing last night ( after some rain ) in second .. manage to do some drift ( my 80 it's part time ) release the skinny pedal, gain control and nail it again to drift it to the other side .. lot's of fun ..

 

[syche]

Hi All

Mine in large corners and driving up hills in 3rd loose grip from the front axle when i floor it (it's a 4wd without Viscous diff), not to mention what happend in 2nd or when it is raining . , fun, but .... maybe a touch too much

One for G who woke up my sleepy 80

 

[rideglobally]

Gturbo

i have a 12ht with Gturbo. now has 13,000 miles on it and getting ready to put another 10,000 miles this summer. i appriciate all the technical stuff but honestly confusing to me, button line i am very happy with the performance of my rig. just want to chime in

 

[hybric4x4diesel]

hi adam B since you have all the good stuff from australia(gbentic) wondering any dyno yet?