After a lot of planning and minor issues along the way I finally was able to get my car down to Pruven today for Al to retune it with the new GT3065 kit. My rationale in choosing this turbo originally was that it seemed to slot in between a 50 trim and a 35r, makign it a good option on paper for people such as myself who arent looking to rebuild the bottom end but still make ~500whp.

The install of the kit was pretty straightforward. Minor details such as coolant line *crush washers (I mistated), sourcing manifold nuts, and no 02 sensor bung in the exhaust housing complicated things slightly. For DIYers be sure to mull over every minute detail beforehand or atleast have access to a well stocked mitsu parts dept.

Install Notes

The kit is nicely made and I like the idea of running a cast manifold on a daily driver for durability. Fitment was pretty much perfect except for the fact that when the exhaust housing is bolted to the turbo it sits at a slight angle meaning you have to twist the rest of the exhaust slightly to get it to mate up properly, its possible this was just an issue with my DC Sports DP but its identical to most replacement DP's out. The wastegate clearance with the radiator is something of a concern but I havent had an issue with it to date.The stock fan controller interfaces with the replacement slim fan perfectly with a simple swap of connectors with the stock one.

Modification List
Stock 2.0L, Stock TB/Intake Manifold
SMC Alky Injection (100% Alcohol)
Precision 780cc Injectors
HKS 272/272 cams
Perrin 3" Catback, 3" DCsports Cat Delete DP
Injen Intake
TurboXS FMIC
Forge Unos MBC/Forge RS DV
HKS DLI2 Ignition - BR7ES .24gap


Dynoflash EcuTek Tune - Power Outcome

430whp/3xxtq - 27psi

We ended up wrapping this up late so I dont have a dyno sheet to post as of tonight. However, the pertinent information is that the car ended up making 430whp/3xxtq with full boost hitting around 4800rpm on the dyno with a conservative tune. On the road the car feels considerably faster than my previous setup (360/360) and definitely feels as if it spools considerably quicker than the dyno sheets indicate. One of the advantages of retaining the GT30 exhaust shaft lies in the fact that this turbo respools instantly between shifts.

As im sure this is going to come up im well aware of the fact that my numbers are not quite inline with what the reasonable expectations for a setup like thsi should be. As previously mentioned this setup was pieced together in hopes of approaching 500whp on pump 93/alcohol, goals which I wasnt quite able to reach. Mechanically my car seems fine, however, I'm going to do a boost leak test, swap in a fresh set of plugs, and possibly redyno on a cooler day. A friend of mine locally made 440whp at Buschur with this turbo on 110 race gas and 30psi. Jarrod at Buschur saw his car clear 470whp so my results didnt quite turn out as expected.

Flexibility as to the timing advance that you can run on pump gas with a small alcohol jet compared to that of race gas would seem like the most glaring point of difference between those cars and mine, along with the adverse weather conditions.

Closing

In closing I'd like to thank Al for producing what would turn out to be a very enjoyable car to drive. The differences in throttle response/spool from when I drove in made the biggest difference in the feel of the car overall. He also did a nice job of scaling the 780cc injectors as the car left with the same stock like feel/refinement it had previously.

Also thanks to Dan, John and the rest of the staff at Pruven for being helpful and accessible during my time there. If I werent a stubborn DIYer I would definitely entrust Dan with my car's build up.

In the end this setup's true capbiity is going to be tested at the track. That along with a dyno session on a much cooler/less humid day should give a more accurate picture of what I have, but as of this moment I'm just enjoying the new found power this setup has to offer.

 

good numbers! pruven is the best hands down really good people

 

Nice numbers. I bet it is a blast to drive

 

Thanks guys. To be clear the car is definitely a ton of fun to drive at the moment, the power is unrelenting to redline and the exhaust note/open WG dump really make it an experience.

 

Hmm .. mike i know how you're feeling ! ...

but there's only one way to tell ... aug 16 baby !!!

 

wow only 430 on alky? You might have been better off with a 50 trim. It seems most 50 trim owners are hitting 470whp+ on alky, with better spool.

Hope you fix the issues to put down the power you had wanted.

 

Yea, we'll see what happens at the track. I was able to drive my past setup down the track to its potential (1.6x 60fts) so if this car has a good time in it ill do my best to find it.

In addition, im trying to give this kit the benefit of the doubt, the dyno room was very hot/humid and it is possible although unlikely that the car has a boost leak of some sort.

If I leave the track with a trap speed that indicates higher dyno numbers this story comes to a close, as of now the jury is still out.

 

Those numbers leave a lot to be desired. I made 440whp on pumpgas at 23psi, 98 degrees in the dyno room.

 

you didn't dyno in the past 3 days' heat wave did you? I can understand the numbers being lower then...it was out of control hot for most of this week.

 

That is just unnecessary. You know exactly what that will start.

 

I don't have the sheet to post as of yet but I really do not think Al has any of the blame to bear on this (if there is any blame to be handed out). I know of someone making 470whp at TT with this turbo on race gas with a much involved setup. He was similarly disappointed so I'm thinking there might be more to this story than who dials in a better tune. Id like to leave tuner bashing out of this, I'm happy with Al's work.

This was doen yesterday, in the middle of El Nino so it could've played a role. How much of a role im not sure.

 

Guys let's leave the negative comments out of here. The guy obviously stated something was wrong and is going to have it looked at.

Congrats on the setup man.

 

I think the lack of power made could have a couple variables...
Having this same turbo on my car i've finally come to the conclusion that im not going to get what i want out of it until i dump the stock MAF, in a couple months i will be swithcing to a AEM which is what all the big number cars w/this turbo are using.
Im not to sure on how much your alky nozzle is capable of spraying but i think the big power is going to come at 30psi+.
This turbo spools exeptionally fast for the power it can deliver, on 2 other peoples cars i have seen full boost by just around 4krpms (if not under) on a 2.0 block with 3rd gear pulls.
Im not to sure what your stock bottom end is capable of but 470 on a MD is kind of a big difference than 430 on a dynojet, meaning that your car should be making a **** load more power, first i would try race gas with alky off. Im just not to sure about the ECUTek with this turbo.
Lastly, DSM's have been hitting 10's for a long time with this same turbo...

 

One of the problems may very well stem from the fact that you are only running 27psi. I'm sure this is due to the limited range that the stock ecu can handle. Having already had to rescale the stock ecu for 27 psi...it is unlikely that you could go much beyond this with a safe and smooth tune.

These GT series style turbo's are not going to put out decent power until you get near at least 30psi or above.

I would def look into A) ditching the 3065 and installing a 50trim(if you just want 500whp and prefer not to spend more mula), or B) getting an AEM or UTEC or something of similar capabilities so that you can take advantage of the turbo.

Your next battle will come into play on the bottom end. The stock bottom end would be best suited to stay in the 470-500whp range if intended to be left in stock form and retain some sort of reliability.

Sorry about the bashing, but I'm tired of seeing threads(not just on evom...in fact mainly on other forums) that complain of not as much power as desired, or having problems with knock and such..and it stemming from a poor tune.

 

Im running the 7gph nozzle (smallest) with what I'd assume amounts to pump gas timing. I have no intention of running race gas although we considered trying that to prove a point. I don't think the added risk to my motor of sending the boost to 30psi+ was worth the risk when people are making solid power under 30psi. I had originally planned on a 50 trim but figured running a slightly bigger turbo at less boost would be safer overall, to date that assumption has been wrong.

Also, as far as full spool by 4krpm in 3rd gear are you getting from an AEM log because the car does spool deceptively quick on the street.

To be clear, I have no confirmed mechanical issue, I'm simply giving this kit the benefit of the doubt. I'm trying to be fair but as an informed member of this community I really don't find it proper to sugarcoat my results.

Finally, I was originally under the assumption that the imbalance in this turbo (larger comp wheel/gt30 turbine) would start to manifest itself at higher boost levels.

I just want this thread to stay on topic, and I definitely feel vendors are too guarded on these boards, too much evo propaganda.