Necessary Engine Modification to Prevent Future Damage

[JdotRez]

So I'm a newbie - and much worse, I'm a Mazda guy. Just to get this out of the way, I've never had a car with a turbocharger and I'm very excited/scared about its potential. A combination of common sense and common consensus has led me to the determination that too much boost could easily destroy my engine. Luckily, I have the next six months with my engine (as it rests on an engine stand in my basement) to modify and upgrade at will. On my to-do list is the installation of the 20g turbo I recently acquired, 550cc fuel injectors, a larger (walbro) fuel pump, executing a complete overhaul, porting/polishing everything within reach, and swapping out the clutch and flywheel.

Now, that should probably take me about 3 months and does not even come close to exceeding my projected budget for this project. This leads me to ask the following: what should I replace auxiliary to these parts to ensure that the engine doesn't blow during my first run down southside drive? I've heard talk of forged pistons and titanium cylinders, but this talk originated from the same guys who just bolt a turbo and a fmic on their civic and think their hot shit.

(Note: I'm not a complete idiot - pretty close, but not completely. I understand that tuning is an integral part of maximizing performance and minimizing risk, and because I'm not racing the car - just building a driving recreationally - I don't plan on running any more than 12 to 15 psi. Conversely, I hope to protect this investment as much as possible.)

Thanks in advance for all your advice and insight,

J.Rez

 

[bojanglesracing]

a AFC may be helpful to help tune the car so you are to rich or lean
many of things you could do but everyone is diffrent what they want out of it and things to help not blow the motor make sure you do a good Job putting it togher

 

[Pure92TSi]

an adjustable fuel pressure regulator would really help with tuning

 

[MyBeatGSX]

I don't plan on running any more than 12 to 15 psi.

And so it starts.... That plan will last until about 5 minutes after you make your first 15psi run. Boost is addictive. First you "only" want 200whp, then when you hit that you "only" want 300whp, etc. Its the story of all of our lives.

 

[fastalon82]

You wont have to do much if you run less than 15psi of boost. Just make sure you have a good tune on it and enough fuel so that you dont have any detonation. Like the other guys said, get an adjustable fpr and an AFC for tuning or a dsmlink. Youll realize shortly how reliable the 4G63 is and how much abuse it can handle without even getting stressed.

 

[Dream On]

I would think you'd need larger injectors for a 20g, but if you seriously only plan 12-15 psi, then they're probably enough.

 

[bojanglesracing]

don't you think 550 are big enough

 

[91gsxboosted]

So I'm a newbie - and much worse, I'm a Mazda guy. Just to get this out of the way, I've never had a car with a turbocharger and I'm very excited/scared about its potential. A combination of common sense and common consensus has led me to the determination that too much boost could easily destroy my engine. Luckily, I have the next six months with my engine (as it rests on an engine stand in my basement) to modify and upgrade at will. On my to-do list is the installation of the 20g turbo I recently acquired, 550cc fuel injectors, a larger (walbro) fuel pump, executing a complete overhaul, porting/polishing everything within reach, and swapping out the clutch and flywheel.

Now, that should probably take me about 3 months and does not even come close to exceeding my projected budget for this project. This leads me to ask the following: what should I replace auxiliary to these parts to ensure that the engine doesn't blow during my first run down southside drive? I've heard talk of forged pistons and titanium cylinders, but this talk originated from the same guys who just bolt a turbo and a fmic on their civic and think their hot shit.

(Note: I'm not a complete idiot - pretty close, but not completely. I understand that tuning is an integral part of maximizing performance and minimizing risk, and because I'm not racing the car - just building a driving recreationally - I don't plan on running any more than 12 to 15 psi. Conversely, I hope to protect this investment as much as possible.)

Thanks in advance for all your advice and insight,

J.Rez

I think that a GM mass air flow with a GM mass air flow translator would help you out alo for tuning it. Also, if it is the second generation motor, you should get the balance shaft elimintor kit. If you plan on running only 12-15 psi, you should also go with a smaller turbo to reduce lag. I think after you drive it you probaly keep turning it up though.
-joey

 

[91gsxboosted]

So I'm a newbie - and much worse, I'm a Mazda guy. Just to get this out of the way, I've never had a car with a turbocharger and I'm very excited/scared about its potential. A combination of common sense and common consensus has led me to the determination that too much boost could easily destroy my engine. Luckily, I have the next six months with my engine (as it rests on an engine stand in my basement) to modify and upgrade at will. On my to-do list is the installation of the 20g turbo I recently acquired, 550cc fuel injectors, a larger (walbro) fuel pump, executing a complete overhaul, porting/polishing everything within reach, and swapping out the clutch and flywheel.

Now, that should probably take me about 3 months and does not even come close to exceeding my projected budget for this project. This leads me to ask the following: what should I replace auxiliary to these parts to ensure that the engine doesn't blow during my first run down southside drive? I've heard talk of forged pistons and titanium cylinders, but this talk originated from the same guys who just bolt a turbo and a fmic on their civic and think their hot shit.

(Note: I'm not a complete idiot - pretty close, but not completely. I understand that tuning is an integral part of maximizing performance and minimizing risk, and because I'm not racing the car - just building a driving recreationally - I don't plan on running any more than 12 to 15 psi. Conversely, I hope to protect this investment as much as possible.)

Thanks in advance for all your advice and insight,

J.Rez

I think that a GM mass air flow with a GM mass air flow translator would help you out alo for tuning it. Also, if it is the second generation motor, you should get the balance shaft eliminator kit. If you plan on running only 12-15 psi, you should also go with a smaller turbo to reduce lag. I think after you drive it you probably keep turning it up though.
-joey

 

[91gsxboosted]

So I'm a newbie - and much worse, I'm a Mazda guy. Just to get this out of the way, I've never had a car with a turbocharger and I'm very excited/scared about its potential. A combination of common sense and common consensus has led me to the determination that too much boost could easily destroy my engine. Luckily, I have the next six months with my engine (as it rests on an engine stand in my basement) to modify and upgrade at will. On my to-do list is the installation of the 20g turbo I recently acquired, 550cc fuel injectors, a larger (walbro) fuel pump, executing a complete overhaul, porting/polishing everything within reach, and swapping out the clutch and flywheel.

Now, that should probably take me about 3 months and does not even come close to exceeding my projected budget for this project. This leads me to ask the following: what should I replace auxiliary to these parts to ensure that the engine doesn't blow during my first run down southside drive? I've heard talk of forged pistons and titanium cylinders, but this talk originated from the same guys who just bolt a turbo and a fmic on their civic and think their hot shit.

(Note: I'm not a complete idiot - pretty close, but not completely. I understand that tuning is an integral part of maximizing performance and minimizing risk, and because I'm not racing the car - just building a driving recreationally - I don't plan on running any more than 12 to 15 psi. Conversely, I hope to protect this investment as much as possible.)

Thanks in advance for all your advice and insight,

J.Rez

I think that a GM mass air flow with a GM mass air flow translator would help you out alo for tuning it. Also, if it is the second generation motor, you should get the balance shaft eliminator kit. If you plan on running only 12-15 psi, you should also go with a smaller turbo to reduce lag. I think after you drive it you probably keep turning it up though.
-joey

 

[JdotRez]

Wow, you guys are fast. Thanks for the quick, insightful response. I was already planning on getting DSMLink, and I think this certainly affirms that decision. And yea, you're right, 15 psi will probably only last a week or 2. Thus, in the event that I do tune beyond that, how much boost/horsepower can the 4g63t handle before it self-destructs? When I used the search tool, I got answers ranging from 250 to 450 hp and anywhere from 10 to 25 psi. Just wondering if there was one true answer.

Thanks again,

J.Rez

 

[knighteclipse1]

Wow, you guys are fast. Thanks for the quick, insightful response. I was already planning on getting DSMLink, and I think this certainly affirms that decision. And yea, you're right, 15 psi will probably only last a week or 2. Thus, in the event that I do tune beyond that, how much boost/horsepower can the 4g63t handle before it self-destructs? When I used the search tool, I got answers ranging from 250 to 450 hp and anywhere from 10 to 25 psi. Just wondering if there was one true answer.

Thanks again,

J.Rez

Thats a hypothetical question, thats a no no here. check the forum rules. As far as answering your question though, you can find that answer by reading the tech guide or going to road race engineering website. As a general rule with stock internals you can look at around 400whp from a 7 bolt motor and alittle more from a 6 bolt. Although you have probably read alittle on the crankwalk problem associated with 7 bolt motors. Of course no two engines will be exactly alike thats just an estimate. I am sure others will give you some imput on this subject. thats just my .02. I hope that helps alittle.