Thanks for the link! Anymore info as well would be awesome if someone is running this like I am, 10:1 compression, e85, evo 3 intake mani, 1600cc Injectors, 450 pump, ported dsm race mani, tubular o2 housing, head has evo 9 lifters and rocker arms.will soon have gsc s2 cams and springs with t-retainers, just trying tout see of anyone with close to my mod list has one and see how they like it

Which 68hta do you have? td05h wheel or the new larger wheel? 7 or 8 cm2 turbine housing? (basically v1 or v2). If you don't know, what's the build date on it (if you've bought one)..

Havnt bought one yet, was looking into buying a new one, which I believe they advertise as a 8cm housing, as I think it'd suite my goals nicely, for now, till I want to go a lot bigger

What are your plans for the car, and for the turbo?

If you plan on running this at 16G boost levels, don't waste your time. Stick with something that has a TD05H turbine.

I'd love to have 450 at the wheels with this setup, going to be competing in a couple auto x events for the remainder of the year, as well as be my DD to work and school, so in the 420-460 at the wheels is what I'm hoping for!

We already told you there are other turbos much more suited for autocross. In case you forgot: http://www.dsmtuners.com/threads/turbo-selection-for-autocross-build.504189/#post-153594275

@19gsx91 can speak to how the new 68HTA worked out on his DD.

Not trying to be a dick, just trying to save you the money and disappointment. I'd worry less about an arbitrary horsepower number, and more about how to make your car perform optimally in the way you intend to use it. I promise you, properly set up autox car @350 hp will spank a poorly prepped 450 hp car every time.

I understand and it makes sense, guess the sound of getting and extra 100 hp for the same price almost sounded a little better for down the road, I mean, finding an evo 3 16g, and then getting it rebuilt by Justin or something, to me seems like it'll be around 500 bucks, or spend $100 more and get 100 extra possible hp with that setup, idk. Let me know if I'm wrong, but I'm just trying to be efficient with my money spending so I can optimize every dollar I spend for the most hp type of thing. I know I'm still a noob and I definitely appriciate the help, I know everyone in my other post said a 16g, for autocross, I mainly just made this post because I wanted to see what people actually had experienced with that turbo and how they like it is what I was shooting for

There are some threads on here for turbo suggestions while using Auto X, if that is your main goal a version 2 68hta May come up disappointing, While I was on the track at Watkins Glenn I was having issues coming out of a corner with any kind of power, I had a supercharged thunderbird behind me that would catch me at every corner just because I couldn't build any boost leaving the corners, second I hit boost I was GONE.. until the next turn and turbo lag hit again.. that was with the turbo set at around 20psi.

With my current setup, evo III 16g all supporting mods and flowing roughly 44lbs a min with fp2 cams. I am seeing FULL boost (24psi) at about 3700rpm

With stock cams and the vs 68hta I was seeing full boost (20) about 4100RPM.

When I made the comparisons however my data was a little skewed because Gofer pointed out that my timing tables were completely different, and with better timing the 68hta may have been much more responsive, Which I do not dispute as I was still trying to get my head around the basics of ECMlink.

GST with PSI and I both have noticed however that when you turn the boost UP on the 68hta it becomes a different animal, 25+ Psi changes the characteristics.

It boils down to this. (for me at least) If you plan on running around 20psi. Stay with a 16g. you will be much, much happier with the powerband. However if your looking to run more boost, 25+ then it definitely becomes an option. I am seriously considering putting mine back on this winter if I keep it because I'm wondering if I'm not squeezing the 16g a little too hard on PUMP GAS at my boost level. (I am not saying the turbo is maxed out, please do not turn this into a discussion about what PSI you can run your 16g at)



Thanks for the tag Brett, I was watching but not really sure where to poke in.

Every set-up is different first of all so spool times vary. As some people find the new fp 68hta super laggy compared to a Evo 3 16g. However, myself, find the spool times not to be much different. I've posted some logs before showing I hit 20psi on the fp 68hta at 3800 rpms and full boost at 4100 rpms at 25psi. I used to have an Evo 3 16g with a billet wheel and hit 20 psi by 3600-3700 rpms.

But once again I have a different set-up from other people on stock cams and e85. All of my mods are current in my profile. I personally really like the new 68hta as it hits really hard, and like other people have said the turbo doesn't come alive until 25psi+. 30psi on e85 is a lot of fun .

I just talked to Robert at fp I'm seriously considering picking up one something to grow with and a e 85 tune starting to really think bolt on stock appearing.

iugrad92turbo said:

I just talked to Robert at fp I'm seriously considering picking up one something to grow with and a e 85 tune starting to really think bolt on stock appearing.

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They are great turbos on e85. I just looked at a log from the other day on a 3rd pull, and I hit 23 psi in under 4k rpms upper 3900 rpms. However, the stock appearing look is more like an ebay look . If you can swing it FP will machine an Evo cover for an extra $120 if you have a cover to send them.

GST with PSI said:

A promise you, properly set up autox car @350 hp will spank a poorly prepped 450 hp car every time

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Very well said.

Type1DSMr said:

I used to have an Evo 3 16g with a billet wheel and hit 20 psi by 3600-3700 rpms.

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Any cams with that setup? Because thats about 300-400 RPM later then I was hitting 20psi with the evoIII, and exactly what I'm hitting now with a ported evoIII with fp2 cams at 24psi. Very interesting that we've had basically opposite experiences with almost the same 2 turbos.

19gsx91 said:

Any cams with that setup? Because thats about 300-400 RPM later then I was hitting 20psi with the evoIII, and exactly what I'm hitting now with a ported evoIII with fp2 cams at 24psi. Very interesting that we've had basically opposite experiences with almost the same 2 turbos.

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No stock cams and timing map on both turbos. I am now running different timing maps on the 68hta so the spool is better in the second post of 23psi under 4k.

I know right we have been posting the exact opposite experiences in a couple of threads now . All that proves is that there are several variances between set-ups. Like stock cams or upgraded, gas or e85, speed density or maf, and so on. That's partly why no opinion is better on which turbo is better between the Evo 3 or Fp 68hta at so and so psi because of different set-ups.

Yes I have 272s cams and I'm tuned with speed density. I'm currently in need of another turbo so I'm looking at my options.

JoshMc said:

I understand and it makes sense, guess the sound of getting and extra 100 hp for the same price almost sounded a little better for down the road, I mean, finding an evo 3 16g, and then getting it rebuilt by Justin or something, to me seems like it'll be around 500 bucks, or spend $100 more and get 100 extra possible hp with that setup, idk. Let me know if I'm wrong, but I'm just trying to be efficient with my money spending so I can optimize every dollar I spend for the most hp type of thing. I know I'm still a noob and I definitely appriciate the help, I know everyone in my other post said a 16g, for autocross, I mainly just made this post because I wanted to see what people actually had experienced with that turbo and how they like it is what I was shooting for

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Do you have basic hand tools? Are you semi-handy, and can you follow directions? If so, my recommendation would be to build your own bastard 20G. I've said it before and I'll say it again, hands down one of the best bang for your buck turbos.

You find a cheap, blown, rebuild-able E316G, spend about another $250 on parts and boom, fresh bastard 20G. I literally built one of these for about $400 bucks. I ran 12.1 in my pig of a Galant on a semi decent tune with that turbo...AND it spooled like any 16G I've ever had. That turbo was good for an 11 second pass with more tuning, but I swapped it out with the new 68HTA before I got there.

http://www.dsmtuners.com/threads/which-turbine-shaft.496907/#post-153542435

They only way I'd consider recommending a 68hta to you for autoX use, is IF (and that's a big IF), you could somehow get your hands on a genuine EVO III 16g and have FP rebuild it using the 68hta compressor wheel (basically build you a V1 68hta).. The new turbine wheel and 8cm2 housing are great for pushing the turbo high in the boost range, but spool and torque down below 4K isn't happening without going back to the td05h turbine and possibly 7cm2 housing..

I had the 68hta 7cm v1 and used it for road racing at willows. Great turbo once I put in my cams k272 it did make it laggy. Non the less for road racing 68hta turbo setup is good if it's the old version. I also had the ability to try out the new 68hta, I believe that turbo is better suited for drag racing but that's just my opinion. The new 68hta was 600-800 rpms more laggy on the same set up I had on gsx compared to my old 68hta v1.

Can you clarify what made it leggy on your setup luii90, when you said "Great turbo once I put in my cams k272 it did make it laggy" and sense both of you guys said it might be a good option of i were on the 7cm housing, do you think I could just give them a call and see if they could still make a v1 68hta with thr 7cm housing sense that's what you guys think would work best?

GST with PSI said:

Do you have basic hand tools? Are you semi-handy, and can you follow directions? If so, my recommendation would be to build your own bastard 20G. I've said it before and I'll say it again, hands down one of the best bang for your buck turbos.

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I am ALL of those things! And I'm still not brave enough to attempt it. But that's cause I think turbos are some kind of black magic.. (Blame it on me being a v8 guy)

JoshMc said:

Can you clarify what made it leggy on your setup luii90, when you said "Great turbo once I put in my cams k272 it did make it laggy"

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What he meant was that with the addition of the camshafts it made the turbo a little bit slower to spool which is normal for adding camshafts to our cars.

You can call FP and ask them, never hurts to pick up the phone.

What he meant was that with the addition of the camshafts it made the turbo a little bit slower to spool which is normal for adding camshafts to our cars.

Thanks for clarifying 19gsx91, that's what I meant. Adding the camshafts added spool lag but the 7cm v1 spooled quicker then the new 8cm v2 no doubt very noticeable.

Keep in mind also, the v1 68hta was rated at 47 lbs / min whereas, the v2 is 51 lbs / min.

GST with PSI said:

Do you have basic hand tools? Are you semi-handy, and can you follow directions? If so, my recommendation would be to build your own bastard 20G. I've said it before and I'll say it again, hands down one of the best bang for your buck turbos.

You find a cheap, blown, rebuild-able E316G, spend about another $250 on parts and boom, fresh bastard 20G. I literally built one of these for about $400 bucks. I ran 12.1 in my pig of a Galant on a semi decent tune with that turbo...AND it spooled like any 16G I've ever had. That turbo was good for an 11 second pass with more tuning, but I swapped it out with the new 68HTA before I got there.

http://www.dsmtuners.com/threads/which-turbine-shaft.496907/#post-153542435

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Well as of right now i am venturing into the bastard 20g setup you suggested, found a guy selling an already machined tdo5h compressor cover for a 20g wheel, the 20g wheel itself, and the hotside that had been ceramic coated all for $75 bucks! ended up sending it off to Justin Whitesell to rebuild it and make me a complete setup and make sure everything was good, i didnt really trust myself on rebuilding everything correctly so i just figured id send it off to him, anyways, just wanted to update everyone with my final decision, ill be updating this thread again hopefully when i get the car fully tuned and get some data logs to share with everyone! thanks for all the help and knowledge that everyone shared! helping me get that much closer to driving my dsm again

Absolutely! Keep us posted. For what it's worth I've got the 68hta back on now and while it's laggier then the 16g, and horrible at low boost, right now at 26psi is an absolute animal,