The J30A V6 Swap attempt - questions, comments

[owequitit]

i know the bout the v6 but didnt ALL 6th gen i4 come with an avail. 5 speed?



are you sayin 98 99 00 4cyl didnt have a manual?

Just to clarify. Every 98-2002 Accord 4cyl was available with a manual transmission. Every 98-2002 Accord V6 was not.

[floored]

Just to clarify. Every 98-2002 Accord 4cyl was available with a manual transmission. Every 98-2002 Accord V6 was not.

thanx for clearin up the 1st part

[mondojackal]

Yea but you can launch a J30 CB basically from idle and run a crazy time, as opposed to the wheelspin-bound launch you'll get from a turbo F22...not to mention the whole possibly blowing up thing. Plus with all the turbo hardware you're not saving any weight over the V6, and it's all at the front of the car which is even worse. The V6 is at least all behind the wheels. With an intercooler and the turbo it's all ahead of the wheels...

Believe me if the J30 swap was feasible it would be a no-brainer. There's no replacement for dislacement dude.

what? nice domestic line there.. too bad that the j30 has nowhere near the power per liter that the smaller motors do.. h22 has a much higher power per liter ratio than the j30. also, why do you have to have a wheelspin launch with a h22 or turbo? besides, where did the blowing up part come from? a properly tuned f22 turbo or h22 is just as reliable as a j30 in a cb. also, correct me if im mistaken, but an intercooler and turbo (extra weight) out on front of the front axle can only be good for traction, right?

[mondojackal]

You and me both... just to say I did... LOL!

Mondo, the J30A4 puts down about 220 WHP and 200 LB/FT of torque, bone stock. They do respond to mods... And they would respond to bolt ons with no loss of reliability. I will have to see what it weighs, but I bet it isn't that much more than a fully dressed H22.

i thought we were talkin about the j30a1 out of the 6th gen?

[mondojackal]

not to mention i've seen some badass superchargers for the v6 - and there's a little more reliability in a SC than a turbo...

the A4 already pulls harder than our A1 did with nothing but a CAI, and our A1 had a p/p head, CAI, jun valvetrain (valves, springs, retainers), custom 2.25" exhaust and a test pipe - im forgetting some things, but point is she was a little built up - and responded incredibly to every mod we gave her

to see what the A4 does in its parent car in stock form, it only keeps me wondering how much its gonna pull a little bitty brother boasting a much lighter stock weight to start. owequitit, id be interested to know if you could figure out the weight difference btwn the H- fully dressed and the J in stock form, because I agree that they can't be that different

im with mike on this one, please keep us updated with pics.

i've not heard very flattering things about the j30 superchargers

[NAiL05]

Well J30 does have more torque if I remember correctly. Its powerband is a bit smoother but tuning wise I think its a bit on the easy side because it was meant to be somewhat a luxury car but you can get past that. And yes as mentioned 6th gen V6 = no manual tranny. 6th gen 4 cylinders = manual/auto trans.

[owequitit]

i've not heard very flattering things about the j30 superchargers

I have yet to hear anything bad.

A standard USDM H22 has a per liter output of 86.3 HP/liter The JDM H22 is about 88.6 HP/liter.

The J30A4 is about 86.6 HP/liter at its actual power output (about 260 crank HP), which puts it right between the two in terms of output per liter.

It also lays down right around 200 lb/ft to the wheels, bone stock with a paper airfilter. Show me a stock H22 that lays down anywhere near that torque...

It also will run on 87 octane with no trouble and will get mileage about equal to the H22...

Then god forbid you start tuning it. 20WHP from an exhaust. Chipped ECU could be another 10-15 probably, intake gaskets etc. You could VERY easily be looking at a 250-260 WHP beast without ever cracking open a valve cover.

Since it would still be stock, I don't think reliability would be an issue...

I have been looking around, and just a speculatory number at this point... I think a dressed J30 weighs about 50-75 lbs more than an H22...maybe a bit less... People just dont keep track of that stuff I guess.

[mondojackal]

I have yet to hear anything bad.

A standard USDM H22 has a per liter output of 86.3 HP/liter The JDM H22 is about 88.6 HP/liter.

The J30A4 is about 86.6 HP/liter at its actual power output (about 260 crank HP), which puts it right between the two in terms of output per liter.

It also lays down right around 200 lb/ft to the wheels, bone stock with a paper airfilter. Show me a stock H22 that lays down anywhere near that torque...

It also will run on 87 octane with no trouble and will get mileage about equal to the H22...

Then god forbid you start tuning it. 20WHP from an exhaust. Chipped ECU could be another 10-15 probably, intake gaskets etc. You could VERY easily be looking at a 250-260 WHP beast without ever cracking open a valve cover.

Since it would still be stock, I don't think reliability would be an issue...

I have been looking around, and just a speculatory number at this point... I think a dressed J30 weighs about 50-75 lbs more than an H22...maybe a bit less... People just dont keep track of that stuff I guess.

what about the j30a1? what are the basics to cover with that motor?? my bro-in=law has a 6th gen lx coupe with the j30a1 and teh 4 speed auto. what would be the best mods for it after intake and exhaust, excluding the headers..they are mad expensive.

[rickyduckworth]

time for some negativity, someone needs to do it because things USUALLY don't end up so well in these situations:

i didn't read it all, but are you considering maintenance after it's in the cb chassis? putting anything into anything is simply a matter of money......you can put a v12 in a miata with enough money........how different do you wanna be is the question, but in a real life, drive it often scenario, you gonna be able to work on it without taking it apart completely?

i've changed my mind on lots of things due to how hard it is to work on......if it is gonna take a weekend to do a tune-up on something, then why bother?

i wouldn't eat my children just to be different though, and some will do whatever it takes to be different......but to me, if different isn't faster then it isn't worth it......different is usually not more efficient but faster....or just different.....you should spend your time on the k-series swap IMO.......a mildly modded k series swap would be cheaper, get better gas mileage and in the coming years, have 100x the aftermarket options.....and getting power out of them would be much easier.....a k20-r can put down 200hp easily.......300whp n/a shouldn't be too hard in a year or two.....and it weighs about 100lbs less than the a4 when both are full of fluids

but if you 100% wanna spend part of your life and money doing this, go for it......just keep your expectations realistic......you probably won't get as much notoriety as guy X, most won't appreciate what you've went through, etc..........but if it's for YOU, then you'll be happy i'm sure

[gloryaccordy]

Bleh...not for nothing fizz but you were saying the same about the K-swap not too long ago. I say if you can get it in for reasonable time and money then go for it. But the more you know and have beforehand (i.e. getting a wrecked AV6 as opposed to just the motor, knowing how to or someone that can fab up mounts) the better off you'll be in the long run. This is by far not at all a weekend project, but with the know how it's pretty doable. If I had the time and money I'd try it out...hell, you never know, Hasport could mess around and make a kit if enough people show interest.

[CBAccordA4]

Go with the V6 Swap. No replacement for displacement. With a four cylinder swap the most litres you can get is 2.4. With a v6, from 2.7 to 3.5.......................Crazy Torque, nuthin would match it, K-series or H series couldnt fuck with a v6 swap...Period...Smaller displacement motors stress more to make power. Spend the money, do the swap, so WE can all see. Hey, you might end up on a H.T. cover.

[rickyduckworth]

Bleh...not for nothing fizz but you were saying the same about the K-swap not too long ago. I say if you can get it in for reasonable time and money then go for it. But the more you know and have beforehand (i.e. getting a wrecked AV6 as opposed to just the motor, knowing how to or someone that can fab up mounts) the better off you'll be in the long run. This is by far not at all a weekend project, but with the know how it's pretty doable. If I had the time and money I'd try it out...hell, you never know, Hasport could mess around and make a kit if enough people show interest.

you have your facts twisted as usual.......i never thought the k head on h block made sense but i have done as much research as anyone on the k swap into a cb7 chassis......all i would need now is money to do it because i have all the deatails worked out....just wasn't worth it to me to spend the time and money on it......i'm just tired of this game.....wasting time and money to only do it all again later......when you have a family, you'll understand...that's why i post here a LOT less

[Minze]

this thread is useless without pics

[rickyduckworth]

Go with the V6 Swap. No replacement for displacement. With a four cylinder swap the most litres you can get is 2.4. With a v6, from 2.7 to 3.5.......................Crazy Torque, nuthin would match it, K-series or H series couldnt fuck with a v6 swap...Period...Smaller displacement motors stress more to make power. Spend the money, do the swap, so WE can all see. Hey, you might end up on a H.T. cover.

by your reasoning, you should go with the largest engine on earth so there goes your whole argument that the bigger the displacement, the better the scenario (that's just another old, overused, baseless cliche)

with 2.2 liters and a turbo, you could make 400hp on pump gas for less money.......that would take care of the torque issues and it would still be easier to work on, wouldn't it?

you're also confused about engine stress.....a highly efficient 4 cylinder could make gobs of power and be under minimal stress.......it's all about efficiency......getting air in, making it explode with fuel and spark, and getting it out....the more efficient, the more power you'll make......then you throw overall balance into the equation and guess what, it's making great power, lasting 300K miles and getting good gas mileage with minimal maintenance....

you sound like the uneducated big block guys of old......probably recycling what you've heard without really knowing what's up, a common problem with the car community.......

fuck, why mess with a wimpy accord at all? why not get a foxbody mustang with a boosted 5.0 and call it a day? bigger motor, rwd, tons of aftermarket help, easy to find, etc.........

you HAVE to put limitations on everything or there is no good reason to do it......the limitations now are:

1) cb7 chassis
2) engine that will fit/almost fit
3) reason for doing it (street cred?)

the main reason is reason #3........the others are hands down given to the h or k series.......so again, it's only about reasons not really related to performance or the platform itself.....this won't catch on because there is no reason for it to catch on........as easy as the h22a civic is, it never really caught on because of other more viable options.....mainly the k series

[CB7Perfection]

actually read the posts before you make some of these comments, please.