Garrett GT35R vs HRC Super 20G turbo

[CaldinaGt_t]

which is better to use on the street in terms of getting early boost(less turbo lag) and lots of top end power?
which u recomend to be use on a street car? daily driver

[dash]

gt35 and 20g are two different animals.
If you were ready for gt35 power (550+hp atw), you probably wouldn't be asking this sorta question on a forum.

Despite all the hi flyin' "gt hype", to this day the 20G is still regarded by a lot of 'experienced' turbo enthusiasts, as the best street 2L turbo they've ran - echo'd by sr20, 4g63 and 3sgte camps.
Has taken heavy street cars down into the hi 10sec zone.
Has survived dragstrip assaults @30+psi. Even on street tune/24psi/pump gas, its still a potent performer.

Here in the u.s., either the 06 turbine wheel in 8cm housing OR 05h clipped(backcut) in 7cm housing has proven amazing results on 2L.

I take it you're referring to the Hahn Racecraft super 20G

[Akane]

I swapped my TD06-20G for a GT turbo, I still regret it till this day.

[Lith]

Haha thats because you pick crap turbos Kenny

Realistically, 20G is much better for a street car than a GT3540R - especially on a 2l. Its good for a heap of power with pretty good spool, though a GT2871R would be even better

[Akane]

LOL Lith, both the GT2540R and the GT28RS is 2 extremes (power, then spool), the TD06 is so much nicer in terms of compromise between power and spool, cheap rebuilds ($250 rebuilds FTW), sounds nice (whirrrlll), comes strong, it's just the bestestestestestestest turbo i could think of, for a street 2L that will tear things apart.

Just my 2c

[dash]

The response/flow compromise is where the 20 shines.
Is there anything gained going from a 20G to a gt2871 ? Its a step backwards if ya ask me, as I've seen no heavy 2L 2871 street car match the hot 20g performers... even tho they're in considerably lighter hulls (S-chasis).
With all this great GT bb technology (and the pricetag), you still see familiar ongoing debates as to whether you choke your 2L with a 0.64 vs the 0.86 housing and do you run external or not = same old decisons faced when sizing 'old' garret T-series hybrids, which can out perform them at a fraction of the cost.

Hell, I'd put the mitsu evoIII 16g up against a 2871. Here's why.
Its has excellent street response, with a hard torque hit. Consistently datalogged 40-44 lb/min on several mitsu 2L street cars at hi boost. If you're in doubt, these heavy 31-3300 pound street cars have blazed off 11.8-11.4sec 1/4 mile ETs. Thats incredible "small turbo" performance. Whats even more astonishing is that turbo costs less than $500usd, internal wastegate included!! Hence its extreme popularity.
Is there a comparible GT 'total package' ? I'd like to see it.
so much for the 'hype'

[Akane]

OMG stop already, a little bit of me dies everytime I think back how stupid it was to swap the TD06 for the GT Turbo

It was an ex-anthonym modified one too, with the internal wastegate flowing out the right port and divorced dump pipes.

[Lith]

Awww come on, I was just trying to give Kenny the wind up Should I have been more obvious and said to go for a highflow CT26?

I'd call a GT28RS a closer match to a TD05-Big16G. But agreed on GT-series turbos being overrated. I still like them though.

[RH9]

Outright power isnt helped by a turbo being BB - but the facts are proven in that a Garrett BB turbo spools up at least 10% faster and the BB cores are much more durable than plain bearings.

You dont need to idle the BB turbo's down either - basically life expectancy is much higher although they can fail just like a conventional turbo if something goes wrong or installation isnt correct.

[Lith]

Outright power isnt helped by a turbo being BB - but the facts are proven in that a Garrett BB turbo spools up at least 10% faster and the BB cores are much more durable than plain bearings.

You dont need to idle the BB turbo's down either - basically life expectancy is much higher although they can fail just like a conventional turbo if something goes wrong or installation isnt correct.

I think people are thinking power production vs. threshold or outright lag - the Mitsi plain bearing turbos seem to do very very well - comparisons between Trust T517Z's and HKS GT2530s on RB26s are a good example. From most reports, the Trust units do a very good job of keeping the HKS ones honest in all counts and I think thats where the GT vs. the world thing takes on some dimension.

All things being equal, the Trust turbos would spool even better if they were plain bearing core - but whatever they are doing right (superior wheel design? better matching of wheels and housings?) makes their plain bearing units seem like a good option.

Either way, I'm sold on the GTxxxxR range anyway - if not just for the reliability and the ever important bragging rights.

[vvega]

people seam to forget
ballbearing turbo's dont mean that you can not size you housings to engine
you still need to put in the same amout of effort to get a good result

BTW you only have to idle down oil cooled cores
and that is purly to stop cokeing on teh shafts and bearing caused by heatsoak

bb turbos can also hold and sustane higher wheels speeds

up to 170,000 rpm
vrs 70-90000 of a conventional core without massive thrust issues

v