Need advice on what to do next. Looking to max out the power on my stock IX turbo and currently running on E85 @ 30psi. I've done pretty much every external bolt-on, however there are a few left and I'm not sure what should be done.

Here are things I've thought of:

- Upgrading the wastegate actuator? (really don't know if this would benefit me - advice definitely needed).

- Upgrading to a 65mm throttle body (I already ported the IM)?

- Upgrading the cams...I'm looking for Kelford 272's.

- Upgrading to a COP ignition (really interested in SpoolinUp)

If there are any you think I'm missing, please let me know. Trying to get as close to 430whp on a Mustang dyno as I can - current #'s in my sig. Thanks!

 

upgrding the throttle body shouldd help on spoolup...cams will deff help and add power...and as ignition goes, english racing proved to goto 700 or 800whp on stock coils correct me if im wrong

 

I am currently taking the same exact approach to trying to get as much as I can out of the stock turbo. Without having a full mod list from you I have a few suggestions.

1. The cam should get you 20-30 whp if you choose carefully. I am going with GSC S2's but the Kelfords should do good as well.

2. Is your hotside ported? What about the exhaust mani?

3. The 65mm tb should add a little. I think this is much more important when running larger turbo's

4. I purchased the FP 18 psi wastegate as I have heard this will help hold a little more boost up top and should produce higher peak numbers.

5. You should also consider a good FMIC if you don't already have one.

6. The Spoolin up COP upgrade might be worth a pony or two but is more of a driveability mod. Smoother idle, better throttle response and would might alleviate any further ignition related issues later down the road.

7. What about speed density? Maybe a few ponies there as well but mainly another driveability mod as well.

8. High temp coatings?

Any how these are my thoughts. Understand I am not a tuner nor do I own some uber high hp evo but I think about the same outcome as you do all day long and these are things that come to mind. Hope this helps. Let me know what you think. You may have thought of things that could help me out as well. Thanks

 

Since your not interested in changing the turbo yet. To get more air would be to change your cams. It would drastically change your powerband and give you the most gains where you are right now.

 

is it possible that a IX turbo can push out 450hp with the right bolt ons

 

Evo 9's respond to, I believe, GSG S2 cams better than Kelford 272s. Kelfords are arguably the best upgrade for Evo 8s.

What size FMIC do you currently have?

O2 dump.

Port and coat Intake/Exhaust Manifolds.

May be over kill but, double pumper and larger injectors.

Maybe look to do some weight reduction as well. Carbon fiber hood and trunk.

 

I am looking at Kelfords because they seem to be going for a bit cheaper and make about the same, if not more, power.

Here is a brief list of mods so that you guys can rule out some - should have done this first post:

- AMS 3.5in Intercooler, AMS LICP, PPI UICP (short route), PPI turbo inlet pipe, Perrin air filter, PPI Mini Battery

- Ported IM, Ported EM, ARP head studs

- 02 housing, Full TBE w/ test pipe

- Walbro 255, RC 1000cc's, Turbosmart twin-vent bov


Does anyone know how great of benefit a beefier wastegate actuator would be at my boost level? What would the cost/benefits be of upgrading to either an 18psi or 25psi actuator?

 

I still need to do a boost leak test so take my input with a grain of salt, but I haven't noticed any difference with my FP 18psi WGA yet. My boost curve is basically identical. I had the stock WGA preloaded as much as possible without removing the nut and I have the FP preloaded a couple of turns. I would've gone with the 25psi unit, but my 93 octane map is tuned for 23psi.

 

To conclude the list I posted earlier I feel with the cams, the throttle body and a ported turbine housing you will reach your goal with a good tuner. An 18psi wastegate can be aquired for pretty cheap here and might be good insurance to guarantee you holding much needed boost up top. A 25 psi wastegate would work even better if you don't ever plan to run less boost than that. I would venture to say you will probably run out of injector in the process or at least be pretty close. Good luck. Keep us posted.

 

If this is a stock motor I would expect that you will make 430-440 Dynojet and still be safe. So you can calculate % change, a stock VIII or IX is around 245 on our dyno, the IXs are generally more but that is the low side. I would expect to see 13-15%.

Stock rods will be the limitation.

For power-

SD
External WG dump like the MAP
S2s
Ported exhaust
Stock or ported intake manifold (saw a 4hp difference)
WG actuator wont make more power
4" intercooler normally though a 3.5" should suffice
32-35psi spike

440 DJ should be around 383 if it were 13%, so assuming a correct reading Mustang you would be somewhere around 460 DJ or so and maxxing out the stock block and turbo. Past that point either a larger motor or more compression (or both) and things like electric waterpump and ported head.

We have 4 of the 5 highest stock turbo cars in the world right now and they are all based on the above build.

2 at 461 (2.0 at 9.0:1 compression)
1 at 476 (2.4 at 9.7:1)
1 at 522 (2.0 at 11.1, electric waterpump, Magnus)

Most Wanted is in the list at 470whp. There are probably others out there but this is legitimate dynosheets that have been online.

aaron

 

- Upgrading the wastegate actuator? (really don't know if this would benefit me - advice definitely needed).
No

- Upgrading to a 65mm throttle body (I already ported the IM)?
Yes... Mil.Spec 65mm TB

- Upgrading the cams...I'm looking for Kelford 272's.
If you had an Evo 8, then go Kelford. But with a IX, I think most ppl who feel strongly about GSC S2 would highly recommend. If you're going to drop in cams should highly consider upgrading the valve springs and retainers. It's not much extra $ or time if you do both together.

- Upgrading to a COP ignition (really interested in SpoolinUp)
Yes, upgrade to the SpoonlinUp COP. Very easy to install with just a screw driver. Might only gain 1-2 hp, but your idle, gas mileage, ability to gap plugs at stock settings, and avoid spark blowout issues at high boost, especially with E85 (because you can run higher boost than with 91 or 93) will be $$$ well spent and improve overall driving enjoyment.

Go SD and further increase drivability and may give you a few extra ponies.

Port & polish the exhaust maniford... if you don't want to take the downtime to send your off to a shop (recommend MAP, then you can buy mine and I'll send to MAP for you.)
https://www.evolutionm.net/forums/sa...-bov-more.html

MAP O2 dump, but these things are great at creating lot of cop getting noise. I had a MAP O2 dump (awesome fab work), but too loud for me. Went back to the Titek O2 housing and very satisfied with the results. Ever wonder why Buschur and AMS don't sell these? I do...

IMO you're rolling the dice with a mini-battery... you really need all those cold cranking amps on a cold mornings with E85 sometimes. Counterpoint, some ppl never have issues with mini batteries and I envy them. Now running an Optima Yellow Top after trying the AMS, Odyssey, and slightly larger Baker mini batteries with no luck.

 

^^ The man JB (Aaron) has spoken.

 

I really appreciate all of the information so far guys.

- It seems as though people really prefer the S2's over the Kelfords for a 9. Are the S2s making more power? Are the M2's considered a distant third in the power department (I found a set at a good price)? I know this has been discussed eleventy billion times, but once more couldn't hurt.

- I'm really trying to avoid changing out the springs and retainers. I know it isnt much more expensive, but the cams are going to drain me as it is. I don't plan on revving past 8000rpm.

- I was surprised to see Speed Density suggested, but I was kind of planning on going to that anyway...eventually. Didn't realize you can make more power from it. I kind of have to switch because I don't want to change the BOV that I just bought, plus I'm getting horrid fuel economy due to it being a twin vent (~12mpg).

- I already have a ported manifold, so that is taken care of.

- I definitely have a ported TB on the list as well as SpoolinUp COP (thanks for that PM, haha).

- Glad to see I don't need a wastegate actuator - one less part that I need to buy.

- I don't plan on doing an 02 dump as this is my daily driver and only vehicle - its loud enough.


I'm really not looking to set any records here, I just want to get as close as I can to 430whp on the Mustang dyno. After I reach that goal, the plan is to work on my suspension as that could definitely use some attention. Hopefully the said parts will get me there as I really don't plan on swapping out rods or pistons until either A) something horrible happens or B) I have the money to build the motor and buy a higher flowing turbo. Thanks for the help.

 

what is SpoolinUp COP, and where could I get it

 

Individual Coil-Over-Plug set-up. I recommend doing a search for more details.