430-470rwhp will I obtain with this setup or pushing the limits

[kikdurazz]

So I have been running the same setup on my car for the last 7 years and have thoroughly enjoyed it but now am wanting a little more.

Power that is. Currently the car is making 381rwhp and 397 RWTQ on a 7 year old CT-26 60-1 with 10degree exhaust clip upgrade at 18psi(falling off to 16 past 5000rpm)

Motor background:
rebuilt 7 years ago but has only approx 15,000 kms on it(10,000 miles)
JE Pistons and rings .020 bore
new Stock rods
HKS 1.2 MHG at 72ftlbs
ARP head bolts
Stock head

Fuel:
Walbro 255 pump
AFPR
550 Rc's
J-tube bypass

EXhaust
3inch stainless mandrel thru turbo back

Electronics and intake:
K+N FIPK
Lex/afm
Spearco intercooler and 2.5 mandrel hardpipes
Safc
blitz EBC
W/B on the way(car is dyno tuned each year as of right now to set it up, get a deal with local shop A/f on dyno11.4-11.7)

There is more done to the car but figure just meat and potatoes as of now

My power goals is to be makng between 430-470rwhp.

I am planning on just doing a bolt on either Lipp Boss TO4E 61 or the JT61GT

As the car sits right now when 20psi is applied on the dyno car will pull it and hold as soon as you hit the streets car loves fuelcut and have to dial back.

I have considered going with a standalone set up but know for myself I should not be anywhere near the system, I will gladly pay to have it setup.


So basically will I reach my goal with the Lex/afm or will I be limited and looking for other options?

General use of the car is 1-3 drag days a year at the track, otherwise spirited daily driving 2-3 times a week and parked for 5 months in the winter.

So to sum up:
Lex/safc + 61 turbo = power goal and ok for planned use

or upgrade management system have outsider tune + 61 turbo = better option for planned use

Of course trying to keep expenditure at minimum but wife has given a green light to start mod bug again.

 

[kikdurazz]

looking for some insight guys. I have searched but wondering if possible to go on with this route or am I going to be looking for:

new injectors, headwork and fuel management. Trying to keep cost down but still satisfy the right foot.

 

[enjoi.this]

Id say your 550's would be sufficient for what your goals are. An EMS and a larger turbo would be the way to go, dont try and use the lex afm. Im also curious on how the BOSS series turbos perform and last compared to going with a garret or others?

http://www.suprasport.com/BOSS-Sr-Series-Turbo_p_756.html

Personally I like what SS has for the boss turbos, they seem to be a great bolt on for our cars. The installation ease and power capabilities with these makes it that much more appealing. But with the triple bearing and install package its over 2k for it.
It would be nice if some one whos using one of these could throw in a report so we can get an idea if its really all that its cracked up to be.

 

[blackkarma]

i say keep the setup the same besides upgrading the turbo...its been 7 years might want to a most tear the block down and check out how its faired through the years...the more strain u put on the engine the larger chance of failure....

i made 470 on my greddy 20g...using my safc2 and lex to tune

 

[ForcedTorque]

I have been around a long time, and I have never once heard a bad word about Jeff Tamulis.

I'd say with only 10K miles on a rebuild, a compression test on the block would be my first step.

 

[frontierguy25]

Your setup is very similar to mine. I have the Lex AFM and SAFR with JE's and stock rods. I ran around with this setup for about 4 years, with about 430rwhp. I think that you are perfectly fine with that setup you have for 475rwhp. It's when you get above that level you might want to start looking into a standalone ems so you can control timing. I have the JT58 and on a really rich tune I mad 430rwhp on 19psi and pump gas.

 

[grimreaper]

Jt turbos are geting some rep lately!
If you have the money and will take the time to learn something simpler like a stinger, id go standalone. Other wise get a maftpro as they can control lmited amounts of timing.

What does your Safc high throttle map look like? how much fuel are they pulling to get you into those af ratios? looking for the %'s...

 

[jfg121]

I would say you need to get rid of the Lexus AFM and ECU. I did this and went with a Dicktator aftermarket ECU and all as been good thus far unitl my ct26 turbo blew (bad rebuild). Dictators are not too expensive, but not sure your will find support outside South Africa. I would also go for a bigger more efficient turbo that could cost some bucks if you need a new exhaust manifold. Hope this helps a bit.

 

[frontierguy25]

I'm looking into the Stinger as Grim mentioned, it's only $800 and Aaron at driftmotion has a harness for our cars.

 

[MRSUPRA]

For 430-470rwhp, I definantly would not go standalone. No need to complicate thinngs for that power level.

Your setup is almost identical to what mine was with a bolt-on SP61GT. One thing I did have to use to eliminate fuel-cut was an HKS FCD. I could not run much past 20psi with out it. With the AFC, Lex afm and FCD, tuning was very easy. With the SP61GT and similar mods I hit 451rwhp at about 21 psi (with 110 octane in the tank).

 

[Fuzz420]

+1 for Jeff Tamulis

 

[GrimJack]

+1 for Jeff Tamulis

+2 for Jeff.

I'd be really surprised if you can't get mid 400s out of that setup with a bigger turbo. The only thing you may need is something to defeat fuel cut - but really, you should be able to tune it a fair bit higher using the safc & your afpr.

I went with the Turbonetics bolt on, which is comparable from what I understand. I'll tell you this though, if I were to do it again, I'd go with a standard turbo, external wastegate, new exhaust manifold, etc. I may just go that route anyway, and sell off my old system one day.

 

[kikdurazz]

Jt turbos are geting some rep lately!
If you have the money and will take the time to learn something simpler like a stinger, id go standalone. Other wise get a maftpro as they can control lmited amounts of timing.

What does your Safc high throttle map look like? how much fuel are they pulling to get you into those af ratios? looking for the %'s...

The high throttle map is:

1500 rpm- +2%
2000 rpm- +2%
3000 rpm- +2%
4000 rpm- -3%
5000 rpm- -12%
6500 rpm- -17%

Fuel pressure from what I can remember is 36 psi with vac line on.

My only issue with MAft pro is that I would be the first in my market using it. yes there is internet support but do not have a physical body to help with setup.

Honestly I know for myself that I should not be playing with the setup on my own with out help.

 

[enjoi.this]

Maybe look around and ask questions at some local tuner shops and see what equipment they use? But really with almost hitting 500hp on a big turbo, an EMS would really help out with reduceing some of the lagg. Plus the other goodies you get along with it. A neat one is the anti lagg which could help out with your drag times.

Apparently the stinger EMS is very user friendly and is basically a noob tuner. I will be putting this to the test once I install mine.

http://www.supramania.com/forums/showthread.php?t=32899

^^
heres an old thread on tuning info and options, might be useful to you durazz.

Those JT turbos that were brought up. What is the low down and specs on those things? I looked around to see what they were all about and came up short. Just found some equiped car videos and online stores with very little info.

 

[WhtMa71]

I'd at least go with MAFT Pro so you can run speed density and get rid of the AFM restriction. A bigger turbo and a little more boost should get you to your goal.

 

[frontierguy25]

Maybe look around and ask questions at some local tuner shops and see what equipment they use? But really with almost hitting 500hp on a big turbo, an EMS would really help out with reduceing some of the lagg. Plus the other goodies you get along with it. A neat one is the anti lagg which could help out with your drag times.

Apparently the stinger EMS is very user friendly and is basically a noob tuner. I will be putting this to the test once I install mine.

http://www.supramania.com/forums/showthread.php?t=32899

^^
heres an old thread on tuning info and options, might be useful to you durazz.

Those JT turbos that were brought up. What is the low down and specs on those things? I looked around to see what they were all about and came up short. Just found some equiped car videos and online stores with very little info.

Go to notrice.com and he has them there. They are basically the same turbos that compturbo.com and suprasport.com sell. They use the same exhaust side as the boss turbo. They are just spin offs.

They are very comparable to the bolt on SP61 with a better exhaust housing.

 

[kikdurazz]

the more I think about it, I may just do the turbo (still undecided on which) and then see what the car will pull. If not able to get the performance I want out of it, then decide to change up the fuel management.

Thanks for the insight guys, this has been helpful in directing the next course of action.

I think a standalone will be beneficial down the road, but in the short term this may suffice.

 

[tekdeus]

After upgrading from my 57 trim CT to the billet GT35r, the difference is enourmous. Particularly in top-end power, where the CT would fade really early because of the small turbine. If you go with a JT, Boss, or T4 turbo, you will gain a much better power curve.

A standalone and professional tuning would be ideal. However, I am on a tight budget and just dyno tuned my 62mm billet turbo with Lex/SAFC/550's up to 24psi with no fuel cut at all. I added fuel by running higher fuel pressure (45-50psi base), and an AEM meth kit ($350) spraying 50/50 methanol with the 615ml/min jet. This let me pull fuel on the SAFC to raise fuel cut, and use the dyno shop to check for knock, A/F ratio, and play with the base timing as we carefully raised the boost. A bit risky, yes, but it is possible.