4g61t.org

i finally got my motor installed and broken in, just in time for the last 1/4 mile test and tune of the season. the motor is a 2.4l with a 16g and dsmlink and 23" slicks. the first run ever for the car at 14psi of boost untuned it went 12.7@110mph. second run i turned up the boost a notch and snapped the pass side axel off the line. the time isn't fast but since it was my first time launching on slicks and fwd i wasn't too disapointed. now that the motor is broken in i can put on the big turbo and get it tuned. i know i don't post on here much because i am usually using the search button but i figured some may like to know the stats.

Cool what turbo did you go with?

_________________
Current
95 Mirage AWD - "HoboEvo" 1008 awhp 9.5@165
08 535ix 420awhp
06 C6 Z06- 600whp NA

i have an scm61 but i'm considering going bigger now that the engine is 2.4L

i originally put in a stock internaled 2.0l but the crank walked on it even though it is a 6 bolt. still have not figured out why, maby it was because it had like 160k on it. i bought the scm61 thinking it was going on a 2.0L

there is a guy around here locally with a 2.4L and a pt67 making 704whp i may go the t4 route or maby just put on the scm61 with some nitrous... i most likely don't need all that much power until the suspension and drivetrain gets some attention. the whole tranny thing sucks balls having to drop a grand on a differential and all- i was considering the possibility of going with a built auto tranny instead. breaking shit sucks

I am out fo turbo now with a60-1 which is what the scm61 is. Either a t3/t4 or full t4 66 or 67mm would be great for you. If yo ugot $, GT40 is also a good pick, but you will want to go bigger soon.

_________________
Current
95 Mirage AWD - "HoboEvo" 1008 awhp 9.5@165
08 535ix 420awhp
06 C6 Z06- 600whp NA

The SCM61 does not use a 60-1 compressor wheel, it uses a Gt40 compressor wheel, which will allow for 65lbs/min of airflow, whereas a 60-1 is good for about 60lbs/min. An SCM61 is a standard thrust bearing version of a GT35r but the turbine housing is machine to bolt onto a mitsubishi exhaust manifold, hence Sport compart mitsubishi(SCM). You can make over 600 on the SCM61, but be ready to run 40+ psi of boost, or nitrous. A friend of mine runs a gt35, which is a sc61 with a 75 shot on a 2.0L, makes 550whp at 35psi. My SCM61 is has a bullseye turbine housing, which flows a little better than the PTE mitsu housing and it also has a p-trim turbine wheel, which is almost Identical to the t-351 wheel of the standard SCM61 and GT35r. A standard thrust bearing t4 Pt67 would be a great turbo for a 2.4. Two guys I know have run 2.4s with t4 pt67s and both made 700awhp on 33-35psi. GT40 is gonna spool slower than a pt67, but should make about the same power so its kinda a toss up. PT67 would be the way to go IMO. If you want to have a lot of fun and do nothing but buy tires every other month you can go with a ball bearing version of a pt67, or better yet, the t3 version of the pt67, which you might actually see full boost around 4200rpm in third gear. If you have anymore Q's I'll see what I can do.

_________________
1989 Dodge Colt Turbo w/ 4g63t swap
1999 Ford Contour SVT

awsome, thanks for the info guys! i have an scm61 with the internal gate and also a nos brand wet kit with a full tank sitting here. should i mess with the internally gated scm61 and maby use the nitrous on top or go straight to a t4? i'm leaning towards the 61/nitrous combo right now because i have it sitting here and would like to get my time slips down into the low 11's or 10's before getting too crazy on the power.

the rest of my setup is dsmlink, wbo2, 720 injectors, 3" gm maft, big fmic, modded 1g bov, exhaust cutout, stock head and cams, smim (not installed yet), wesico/eagle, arp headstuds, stock hg, etc.

i think before i go t4 i need to get the head reworked also- i was thinking fp2 cams and maby springs, porting, cometic gasket.

if i can get in the 500whp range with what i have i would rather sink the money into suspension and drivetrain this winter to get the car moving fast and reliable.

there is a guy on dsmtuners making 532whp on the internal gate scm61 and 665whp with the 61 + nitrous... not shooting quite that high but we will see

The SCM61 with a 2.4 on 30psi should allow for around 550whp tuned, but that would most likely include aftermarket cams and intake manifold. Does your SCM61 have the cut exhaust housing to relieve boost creep? With 450whp and good driving on a slick with some suspension you should be able to get into the tens. I would run the SCM61 with the nitrous, but you'll need cams and intake manifold I would suspect to take full advantage of the turbo. You should easily be able to make around 600whp with cams, intake manifold on high boost plus a small shot if the car is tuned properly. Just a sidenote, might want to invest in a good BOV when you start running +25psi. 665whp is the highest number I've heard of with a gt40 compressor wheel, though it was with the use of nitrous. A guy in MD made something like 657whp last week on a gt35r running 46psi, so its definitely possible to make a lot of HP with the SCM61.

_________________
1989 Dodge Colt Turbo w/ 4g63t swap
1999 Ford Contour SVT

holy crap 46psi?? i could always switch out my boost gauge with my psi gauge from the shop compressor, lol.

That was on meth though too.

_________________
Corey
90 C50 4G63 Swapped-Drag car
92 Eagle Talon Tsi AWD
96 Mitsu Eclipse GS-T
www.ongreenperformance.com
"Just like in the old days-More Horse Power means more crap to pick up-lol"

I didn't know he was on meth, figured he was running at least something close to or better than 110 though.

_________________
1989 Dodge Colt Turbo w/ 4g63t swap
1999 Ford Contour SVT

If it uses a gt40 compressor wheel, then how can it
a) only flow 65lbs/min? I know of 2 locals that make over 700whp, all boost, on true GT40's, which is near 74-76lbs/min.

b)You said it was the same as a 35r. well, the Gt40 and 35r comp wheels are obviously different. I will give you a chance to find the goof.

_________________
Current
95 Mirage AWD - "HoboEvo" 1008 awhp 9.5@165
08 535ix 420awhp
06 C6 Z06- 600whp NA

Unfortunately I didn't make a goof.The 56 trim gt40 compressor wheel that the gt35r and SCM61 turbos use flow 65lbs/min, here is proof that the SC61 series uses this wheel: Proof. If you read you will see that the turbine wheel for that turbo (which at the bottom states its also referred to as the sc61, agp61) is the t350 wheel. The 35 from the t350 is what gives the gt35r its name, the same wheel among the SCM61 turbo.
The 700hp you are referring to among the GT40 series turbos is from the 88mm diameter compressor wheel the GT40 uses, which is very comparable in flow to a PT67, which is 75lbs/min. The SC61 and the GT35r use a 82mm GT40 compressor wheel that flows 65lbs/min. But ask Garrett, or anyone who knows GT series garrett turbos and they will tell you the same thing I have told you, that the GT series derives their name from the turbine wheels, not the comrpessor wheels.

_________________
1989 Dodge Colt Turbo w/ 4g63t swap
1999 Ford Contour SVT

WTF?

So, if there is a GT40 Comp wheel in a GT35r as you say, then comp wheel do you say is in a straight GT40?

The 61mm wheel they list for the scm61 is a 35r comp wheel, plain and simple. AGP and a few other companies have recived heat for advertizing it as a GT40wheel, which it simply is not. You can call PTE or Garret and ask them the inducer of a GT35r's compressor wheel.

And by the way, the GT40 comp wheel has a 65mm inducer, not even closeto an 88mm. 88mm would allow for near 1000whp, of which the GT40 can obviously not do. You can look it up, and I have one sitting in front of me.

_________________
Current
95 Mirage AWD - "HoboEvo" 1008 awhp 9.5@165
08 535ix 420awhp
06 C6 Z06- 600whp NA