4g61t.org

I want to save my money for either a 4G61t or 63t. I was just wondering what the horse power and torque output is on each to see if i should save money for the 61 or get more horsepower with more money and buy the 63. Also if anyone prefers one over the other, please post. I am curious which one would be better for me.

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THE COLT

1.6L turbo = 135HP, 141 torque
390CC injectors
11B turbo
Motor speed limit-121MPH
tranny is limited to 153MPH
price range for motor alone=300-800

2.0L turbo = 190HP, 203 torque
450CC injectors
14B turbo
motor limit-140MPH
tranny limit-178MPH
price=800-2000

^these are all stock USDM specs^

both have huge amounts of potential but 2.0 will have lots more and is able to withstand more abuse. the 2.0 also has more flow over the 1.6 if you ever decide to mount a huge turbo. depending on your goals, if you have a stock equiped 1.6L turbo, then you could always keep it and build it up. in my opinion, if you want to achive about 350HP or more, then go with a 2.0, if not, you can stay with a 1.6L to stay on a budget and save some time(unless you like pulling the motor in and out of the car).

If you can find it, JDM GVR4 RS motor would be "best for its price."
it comes stock with 510CC injectors, lighter flywheel, beefier internals, evo316G, evo3 exhaust mani, o2 housing and etc...

just to give you an idea, im not sure how many people but i've heard of guys running 11's, probbaly even 10's with a 1.6L

*edited*

Cant the 61t take more abuse then the 63t?? i thought it was more indesturctable due to the better rod ratio? but correct me if im wrong.

178MPH

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Geoff
2013 Genesis 5.0 RSPEC
88 Mazda Turbo II- LSX7
89 2.0 Turbo Colt
13 Ducati 1199 Panigale

No.... The head components are relatively the same.


Soooo if you go much higher than 7K rpm, you'll still float the valves.


The only reason the 61t can rev it's @$$ off and not self destruct is because it doesnt have balance shafts which dont like high revolutions

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Geoff
2013 Genesis 5.0 RSPEC
88 Mazda Turbo II- LSX7
89 2.0 Turbo Colt
13 Ducati 1199 Panigale

Crap...My MSD is set to 7600 red line on stock valvetrain...I should set it down...

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92' Dodge Colt 200GT - 4G63T - Taking Offers.

Man....
Honestly I've seen 7k plenty of times. I think it's safe to say 8.5k and up float valves

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Geoff
2013 Genesis 5.0 RSPEC
88 Mazda Turbo II- LSX7
89 2.0 Turbo Colt
13 Ducati 1199 Panigale

Tuff call based on money though and long run goals. If you buy a used JDM 61t it will come with the 1.8L head which has the same port sizes as the 63. I paid $450 shipped for mine.

Short stroke motors are relativly indestructable due to less load created but we are talking about iron block 6x series motors here. The 1.6 pistons are actually weaker than the 2.0 stock for stock. The land rings are thinner and more prone to cracking if you get bad knock...but they are still stronger than most factory pistons.

To give you an idea of power potential of the 1.6 vs 2.0 with similar mods, I was running a 14B @ 19 psi with stock 63 corresponding parts (ie, 2.0 cams, 2G manifold, 2G 02 sensor housing, 1G MAF, 450's etc.) I dyno'd 249 hp and 260 ft/lbs. A similarly modded 92 GSX dyno'd after me running 18.5 psi on his 14B. He did 238 hp and 280 ft/lbs but also remember there is more drivetrain loss on an AWD. The 63 was full spooled 1,100 rpms sooner also helping create the big difference in torque. But by redline the 1.6 had only dropped to 240 hp where the 63 was down to 222 hp. I know a big part of this was tuning and I've seen higher HP 63/14B cars but they had many more supporting mods than me as well. You also have to keep in mind the balance shafts are sucking up some serious top end power from the 63.

Depending on what your willing to spend and your goals I always suggest the 63 since there really is not replacement for displacement.

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Turning a 4g61t into 1595 cc's of FURY!
10.995 @ 134.44 - http://www.youtube.com/watch?v=bZXvcvzuWGQ

SOLD to the fastest shifting hermaphrodite in CO

I am looking to build an all around car. Something thats punches but handles well and also is a daily driver and is not going to blow the bank. I am only in high school still. Does that change things at all. It seems to me that both are pretty good at being daily drivers. I also plan to take it to college so longevity is a plus.

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THE COLT

What tuning was done to your car prior to the dyno and how does it compare to the tuning done to the GSX with the similar mods? I wonder if all things equal, does the 63T have higher ceiling of HP ot TQ than the 61T due to its higher displacement?

We were both using an AFC 2 to tune but I had a little more TLC into my car such as porting and no A/C or P/S. I also chose to run a more aggressive 12.8 A/F ratio to his 11.5 which gained me about 5 hp through the power band. With more tuning and balance shafts gone he would have easily made more power. I watched a guy gain 28 whp on the dyno after eliminating the balance shafts (330 hp to 358 hp w/EVO 3 @ 22 psi).

$50colt, its really a personal call and how much money you have to spend. I'd say go for the 63 because it already has better components that you would have to buy for the 61 just to make it compete and the off boost performance is a big plus.

_________________
Turning a 4g61t into 1595 cc's of FURY!
10.995 @ 134.44 - http://www.youtube.com/watch?v=bZXvcvzuWGQ

SOLD to the fastest shifting hermaphrodite in CO

28 hp more by just removing the balance shafts?! same dyno with no other mods done in between dyno runs? I though balance shaft removal only added about 5-8hp dyno proven.

shit, curt brown pulls the BS and revs stock motors to 9k all the time

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90 GGSX
89 YX-600
92 Laser AWD

He said all he did was remove the B shafts since his last dyno though they also did a little more tuning. The higher the rpms got the more noticable the power difference was and it didn't drop off hardly at all till just after 7K. I've also seen just doing a new T-belt add power, only a couple hp but it all makes a difference.

_________________
Turning a 4g61t into 1595 cc's of FURY!
10.995 @ 134.44 - http://www.youtube.com/watch?v=bZXvcvzuWGQ

SOLD to the fastest shifting hermaphrodite in CO

the bottom line to me is this: there is no replacement for displacement, whether it be 4 cylinders or .4 liters.