Time to choose....68 vgt or 64 batmo

BlueWaffle · Mar 9, 2012

i know there are a few threads about the 68 and a couple about the 64 but I really need to make a choice here. I got the ok from the general (wifey) to step up the turbo but I'm really stuck on what way to go. I can either send my pmax up to RCD and have them mod it to a 68 batmo vgt OR go 64 non vgt batmo with some new uppipes/pedestal from Matt. my truck is just a street toy. never tows. rarely ever taken down the track (at least until my trans gets built sometime in the next year.) mainly drive it around town on the weekend and to the gym during the week. injectors are 190/100's but could be punched out to 205's next year. i know there are a few of ya'll that have experience with both types so lets hear it.

Pizza pig · Mar 10, 2012

I think the 64 non vgt suits your needs... the 64/71/70's are super streetable. Plus, in the long run it will lay down more/cleaner power with the proper fueling and tuning and you wont need to worry about back pressure issues.. it will be a great match for those 190/100s or 205/100s if you do indeed change things up. the 64 could also work as a secondary in a twin setup if the occasion ever arose. the 68 vgt is a nice turbo from what ive read, but its still not enough air in my opinion.

shoot i dont have first hand experience in my personal truck with either of these so who cares what I think LOL

SleeperDuty · Mar 10, 2012

x2 on the 64mm bat.

Keanoknick · Mar 10, 2012

x3 on the 64mm bat.

windrunner408 · Mar 10, 2012

I also dont have either turbo but have wondered the same thing. From what I can tell by what I have read, it appears that everything Greg mentioned is what I have came across in one form or another. I look at it this way.

68mm VGT
Pros: Variable geometry for faster spoolup than the 64 non-VGT (how much faster? IDK.)
Drop in installation.

Cons: To high of drive pressure required for a certain level of boost pressure, thus creating extra strain on the head gaskets.
Will run out of air up top just like every other VGT but may provide a comparable amount of air to the 64mm. IDK.
Little tricky to dial in so there arent any surging issues (I know RCD and IDP can tune it but you are kind of limited in tuning options. (May or may not be viewed as con by everyone)
As already mentioned, the 68 VGT cant be used (at least as of yet anyways) in a compound setup.

64/71/70
Pros: Very streetable turbo with a lot of air up top.
conservative drive pressures as compared to a VGT.
can be used in a compound setup later on if desired.
wider variety of tuning options. (Again may or may not be considered a pro)

Cons: Installation may not be as straight forward as the VGT.
slower spoolup (again how much is yet to be determined)

This is what I have come up with so far for myself with respect to these two turbos so take my opinion FWIW. I also am in know way bashing the 68mm VGT turbo that RCD has come up with. I just dont think it is for me. Nevertheless, I am sure that both turbos would do well with your injector possibilities.

smokinstroker · Mar 10, 2012

Will everyone get off the batmo bandwagon already. What have they proven?? Or is this just another bullseye sales pitch?

I've talked to multiple VERY reputable turbo shops and they have dyno results showing no improvement with the bat. Even a loss at some points.

2 manufacturers actually told me they would rather not take my money for a billet wheel and instead sell me a cast so that I would come back when I was ready for my 400 series.

If you want me to chime in with more info I can.

Save your money stay cast on the 300 series charger.

As for you guys going from a Vgt to a non, take it from first hand experience, it does not spool like stock. Take 1300-1500 on a stock charger, and relate that to 1800-1900 and that's just boost not even fully lit.

faster6.0 · Mar 10, 2012

Lance.. we are coming out with a 64 batmo upgraded vgt with a larger exhaust housing for bp... it is in testing.. pulling 40 psi on 175s right now. need 1 more guinea pig lmk if ud be interested

BlueWaffle · Mar 10, 2012

smokinstroker said:
Will everyone get off the batmo bandwagon already. What have they proven?? Or is this just another bullseye sales pitch?

I've talked to multiple VERY reputable turbo shops and they have dyno results showing no improvement with the bat. Even a loss at some points.

2 manufacturers actually told me they would rather not take my money for a billet wheel and instead sell me a cast so that I would come back when I was ready for my 400 series.

If you want me to chime in with more info I can.

Save your money stay cast on the 300 series charger.

As for you guys going from a Vgt to a non, take it from first hand experience, it does not spool like stock. Take 1300-1500 on a stock charger, and relate that to 1800-1900 and that's just boost not even fully lit.

I'm certainly not sold on the batmo...just an option I have from our dealers. And yes....more input since you've had a bigger vgt AND nonvgt. PM me and shoot me your phone #

jj...sounds like a good option to the powermax but at only .5 mm bigger, the 64 batmo vgt doesn't really seem like much of an improvement over the pmax (power wise) since its still a vgt...wont you be limited on the top end?

windrunner408 · Mar 10, 2012

Dozers Diesel said:
Lance.. we are coming out with a 64 batmo upgraded vgt with a larger exhaust housing for bp... it is in testing.. pulling 40 psi on 175s right now. need 1 more guinea pig lmk if ud be interested

Interesting. What are you pulling with drive pressure?

smokinstroker · Mar 10, 2012

Lance you have a pm

Chris · Mar 10, 2012

Is the 68 rcd pmax a 40r compressor wheel?

You can get a non vgt to spool pretty good on a 6.0, but itll never respond like a vgt. What are your hp goals?

Dustball8504 · Mar 10, 2012

NON VGT all the way if its just your toy truck and you don't tow heavy.

BlueWaffle · Mar 10, 2012

Chris said:
Is the 68 rcd pmax a 40r compressor wheel?

You can get a non vgt to spool pretty good on a 6.0, but itll never respond like a vgt. What are your hp goals?

not sure on the wheel type. I'm curious if the 570 range with the 190/100's is possible with the 68? i've heard of 600+ with 205's and the 68.

my truck will be on the street 99.5% of the time so I'm leaning vgt. I talked to Chris for about an hour about it earlier and he's run both a big VGT and non vgt and had some really good input. I'm waiting to hear back from jared about backpressure and balancing on the 68 but if it is an issue, I'm going to talk to matt about building a wastegate setup to bleed off some of that bp. still not hundo percent sure what way to go.

Gare....hurry up and get your shiz put together so I can have some feedback!

Chris · Mar 10, 2012

Weve built a lot of trucks w/ vgt and non vgts, and honestly i think the vgts out perform the non. Bents vgtss/ 205 combo was easily over 600, and one of the guys at the shop runs the same combo and is right at 600 and 700 on the bottle w/ a slightly smaller nozzle.

Weve done a few trucks w/ 205s and 190s on 64/70s and 64/80s and i honestly think they dont make even as much power up top as the vgt ss has. now the powermax's are still a little unproven, i havent seen how far we can push one of those yet w/ larger injectors.

PTSUPERD · Mar 10, 2012

I hear you bro. Hoping it will be underway soon. Rcd is still waiting on a shipment of wheels from Bullseye. At any rate Im willing to be the guinea pig for the 68 pmax/batmo. Haters will hate. LOL. Its ok.

I decided against the non vgt for the ease of a drop in and the snappy response of a VGT. Tuning will be key I'm sure...

smokinstroker · Mar 10, 2012

Lance. VGT you won't be disappointed for you what you use the truck for.temps can be kept in check with some water.

Seriously favorite setup I have ran was the SS.

Silverback · Mar 10, 2012

Another vote for the vgt, I have an ssx with 190/100s and its more responsive then a stock truck and runs like a scalded dog...and you can't really beat the simplicity of a drop in turbo. The numbers in my sig are with that setup, I pull 1.7 60's all day, and my truck is huge LOL

I'd only go with a non vgt if I was planning on doing compounds

MorganY · Mar 10, 2012

I like(d) my non VGT quite well..I'll eventually get some time on the rollers when it's back up again...but then again my powermax saw just as much boost and heat and lasted 3x as long as my 64..

chappy · Mar 10, 2012

smokinstroker said:
Lance. VGT you won't be disappointed for you what you use the truck for.temps can be kept in check with some water.

Seriously favorite setup I have ran was the SS.

ss with what injectors? My plans for bigger sticks and all that are out the window with another kid on the way. But I like to dream.