how much boost????

[1sicktl]

I'm just wondwering cuz I'm planning on boosting my car and I wanted to know how much boost would hold a stock. j32a2 (2003 cl type s motor)

[hondaboy4life]

Depends on your tuner. They are the best person to talk to... i'd say somewhere in the range of 7-10psi... should easily hit 500 stock motor with that.

[Rajca]

seen 11 or 12 psi max but not dd on that much psi.

but ull be fine with 10psi all day, just get a good tune

[imfat]

anyone know what the horsepower numbers are on 10 pounds?

[1diesel2hondas]

Different turbos will produce different numbers at 10 psi. Shoot for 500 hp. The tunings the important part. Aem finaly released a ecu for jswaps. $1,300.

[LKSi]

anyone know what the horsepower numbers are on 10 pounds?

Depends on the turbo/manifold/dyno conditions/etc. Everything down to what air filter is on the turbo or lack thereof.

[Mutiny1]

I know this response is a little late but to tell u the truth id not go over 6-8 psi on stock motor. on a good tune i had Pistons break apart on the ring glands and even blew a cylinder wall open on 8-10psi. now i use all forged internals in my boosted car. You can run 10psi in a j but know every time u put more pressure in there then its made for..something could start slowly breaking till u end up on the side of the road yelling FAWK!

[imfat]

Different turbos will produce different numbers at 10 psi. Shoot for 500 hp. The tunings the important part. Aem finaly released a ecu for jswaps. $1,300.


Link to said ecu?

[LKSi]

http://www.aemelectronics.com/series-2-ems-for-v6-acura-honda-j-motor-1112

[Mr. Em1]

10 psi on a gt35r is going to be different from 10 lbs on a gt17 and 10 lbs on a s372. It's not really about how much psi the motor can be safe on. These motors are so new to performance that most people don't really even know what the weakest points in the motors are. I have to imagine that these motors should be able to hold in the 300-400whp range without a problem. Now the hard part is trying to find someone who makes a turbo kit, or is willing to make a turbo kit. I give it a year or so and this stuff will start to become mainstream and we will see alot more of these motors. I think the main thing that turns people off from these swaps is the issue with the hood. I am surprised that a company hasn't stepped up and made a large cowl hood like these use on American Cars to cover all of the motor. I feel like this swap is becoming alot more popular and will continue to be because of their availability and that alot of street cars would really like the tq that these motors offer in near stock form.

[diversat]

I know this response is a little late but to tell u the truth id not go over 6-8 psi on stock motor. on a good tune i had Pistons break apart on the ring glands and even blew a cylinder wall open on 8-10psi. now i use all forged internals in my boosted car. You can run 10psi in a j but know every time u put more pressure in there then its made for..something could start slowly breaking till u end up on the side of the road yelling FAWK!

Sounds like not a very good tune. Both of those issues are from knock. I say that because there's not enough cylinder pressure to break a land at 8-10 pounds and definently not enough to crack a sleeve. What management are you using?

[KNIGHTRIDERTYPER]

Never mind, I got an idea...

[Schweppes Built]

I think type of fuel has alot to do with it, im trying E85 and hoping for 10-11 psi.

[crxvtec91]

Psi means nothing, its about cfm's and compressor maps. http://www.d-series.org/forums/archived-technical-info-posts/90422-compressor-map-reading-dummies.html

As for what the limits are on these motors I would be will to bet 600hp can be made safely on a good tune. 10 years ago most people though D15/16 could not make 170hp with out it blowning up, then years of people playing with them should the weak links to be anything over 230hp.

The rods and pistons are a lot stronger in the J motors. Also just because some of the pistons are cast doesnt mean anything (it does), what I mean is just because there cast doesnt mean they cant take a beating. Vitaras anyone? 650hp on cast pistons and open sleeves. I can keep going as to why I think these motors will take 600, but I have to get back to work.

[ronmaster901]

Psi means nothing, its about cfm's and compressor maps. http://www.d-series.org/forums/archived-technical-info-posts/90422-compressor-map-reading-dummies.html

As for what the limits are on these motors I would be will to bet 600hp can be made safely on a good tune. 10 years ago most people though D15/16 could not make 170hp with out it blowning up, then years of people playing with them should the weak links to be anything over 230hp.

The rods and pistons are a lot stronger in the J motors. Also just because some of the pistons are cast doesnt mean anything (it does), what I mean is just because there cast doesnt mean they cant take a beating. Vitaras anyone? 650hp on cast pistons and open sleeves. I can keep going as to why I think these motors will take 600, but I have to get back to work.

While CFM or lbs/min is important, PSI does not mean nothing. The pressure in the cylinder/intercooler piping/intake mani is still very important and cannot be forgotten.

If anyone wants to know about compressor maps and pretty much answers any boost/psi/air flow/turbo question you might have. www.turbobygarrett.com

As far as E85, Its not a bad idea...Im sure if you've done any research, you know it takes about 30% more fuel than 93 octane. However, its Latent Heat of Vaporization properties allow for cooler temps. Investing in a Walbro is probably a good idea.

If I were to turbo a J...honestly I would choose the Precision 6262s. But hey, thats just me.

[crxvtec91]

While CFM or lbs/min is important, PSI does not mean nothing. The pressure in the cylinder/intercooler piping/intake mani is still very important and cannot be forgotten.

If anyone wants to know about compressor maps and pretty much answers any boost/psi/air flow/turbo question you might have. www.turbobygarrett.com

As far as E85, Its not a bad idea...Im sure if you've done any research, you know it takes about 30% more fuel than 93 octane. However, its Latent Heat of Vaporization properties allow for cooler temps. Investing in a Walbro is probably a good idea.

If I were to turbo a J...honestly I would choose the Precision 6262s. But hey, thats just me.


What I ment was in terms or making power with X turbo it mean nothing. 10psi from a T25 is not the same thing as 10psi from say your 6262. BIG difference. Also e85 takes more fuel to make the same power as 93. This simply means bigger injectors are needed, also I have seen times were a single 255 pump was not enough to make 500hp.

[ronmaster901]

What I ment was in terms or making power with X turbo it mean nothing. 10psi from a T25 is not the same thing as 10psi from say your 6262. BIG difference. Also e85 takes more fuel to make the same power as 93. This simply means bigger injectors are needed, also I have seen times were a single 255 pump was not enough to make 500hp.

I gotcha, yeah i just didnt want people to be misguided by disregarding how much psi they were pushing. I agree with you as far as the different amounts of air different turbo's can move. And yes Larger injectors are a must, but i really do think a 255 would do the trick. Also, I meant to say that it took a higher percentage of fuel to make the same amount of power. E85 actualy makes the most power at 6-7:1 AFR

[crxvtec91]

I gotcha, yeah i just didnt want people to be misguided by disregarding how much psi they were pushing. I agree with you as far as the different amounts of air different turbo's can move. And yes Larger injectors are a must, but i really do think a 255 would do the trick. Also, I meant to say that it took a higher percentage of fuel to make the same amount of power. E85 actualy makes the most power at 6-7:1 ATF

Rewired 255 can make tons of power, but anything over 500-550 hp on e85 your going to need a lil more.

[ronmaster901]

Rewired 255 can make tons of power, but anything over 500-550 hp on e85 your going to need a lil more.

No arguments there bro, I was thinking in terms of 500 hp being the max. But yes, especially with e85 using more fuel for the same power, fuel delivery systems must be well equipped