If I buy seans short block with his block stiffner would it be possible to build a 425hp engine that is drivable on the street? I think I can get a water-air intercooler and water cooled turbocharger. If it made 425hp around 8000 rpm and about 335 lb-ft or torque. what would be the major problems
Going through clutches like water and traction.
No projects. Life consumes my time and money.
I didn't realize the rpm was so high, is that your power goal or something he listed?
- llia
it would be hard to build 400hp motor. you will have to run 30psi of boost at least.
the clutch won't hold up to it i am sure someother parts won't hold up for daily driver car. i think you should plan for 250whp first. when you get there, you may want to start thinking more, but first get to 250whp. i am sure even with 250whp you will have some major traction problems.
Alex.
might have to add a shot of juice on it to help it along
I'm your local R&D nut. Fabracting, welding, tuning and breaking my stuff so you don't have to.
If I can get a clutch that will hold up to it and if I take the transmission apart and have the gears hardned and if I can get stronger driveaxles what will the problems be?
Traction.
No projects. Life consumes my time and money.
Why couldnt I have a seloind controlled BOV that would limit the boost to lets say 15 psi in 1st, 20 in 2nd 25 in 3rd etc.
Blow-off valves dont control boost pressure. Wastegates do. I don't know if they make them variable by gear. Most have springs inside and the wastegate opens when you exceed the boost pressure for that particular spring.
No projects. Life consumes my time and money.
What im talking about I think Apexi has one. There is a seloniod that controls the waste gate. If I could build something that would sense what gear it was in and what the cars speed is maybe it could vary the maxium boost pressure and solve the traction problem. The max boost pressure would increase as the cars speed increases and it would be more in 5th than in 1st.
i think even 200 whp would be pretty much something hard for the tires to hook up with. if only you could use a CR-V awd system on the accord. in a car this light 200 whp is gonna feel like a lot more. hopefully sean will keep makeing the parts and kits because i'd like to put the money into engine work myself. guess when after high school i can get to really thinking about major engine work. just 1 more year and i'll be done. also, i'm getting a stockpile of money ready.
Keep it HONDA. Or at least Asian.™
*Weber 32/36*Pacesetter Header*2.25 in. Cat Back exhaust*SE-i rear disk brakes
B18C swap ditched, A20 to be revived
Looking for K20/trans for ultimate swap
On a stock B16 with I/H/E, I'm chirping 3rd gear. That's probably between 140-150 whp. Now imagine 3 times that much power. You're gonna need slicks. I don't think there is anything you can do to get something to sense what gear you're in. The trannies are all mechanical.
No projects. Life consumes my time and money.
at 400whp a limited slip of some kind is just a nessescity... drag radials would be the bare minimum to safely get the car around town... and youd be smoking them all over the place too. At 275whp you can probably run low 12s or high 11s if the car is light enough... maybe faster... how fast do you need to go (thats DAMN fast)
429whp 362wtq A20 TURBO. A20T>*
Reliability!!!!
I think u'd be better off doing a b16turbo conversion!
Is the B16 more reliable? Isn't the B16 block and crankshaft at least twice as strong as the A20? If that is true then I would be better off with the B16
I presume so, since it has to handle more resination incured from higher rpms. but, mainly it should be more reliable because it will be less far from standard.Originally Posted by Chadroper
Highly modified engines such as race engines have to be rebiult at frequent intervals.
Then the B16 block is stronger?
Why did they even build the A series? The engines in the civics back then were better engines
The B16 can handle higher rpms cause it is stroked differently then the A20.
Stroke
77.4mm vs 91.0mm
The A20 may not flow as well on the exhaust end because it has one valve less then the B16... but you can make good power from it, especialy with FI.
Sure DOHC will give you more tuning in terms of valve timing... that is where the Bseries beats the A20 not in it's block, or crank strength.
But then if you want DOHC the JDM B20A is a good option,they just aren't easy to come by.
Anyone see the stroker kit for the B16 that bumps it's stroke to 87.2mm
Last edited by A20A1; 08-11-2004 at 04:47 PM.
- llia
Nobody makes a "street" clutch for us. THe only thing we can do is get a Race clutch (4 puck) amd an X-treme pressure plate from ACT and try and drive around with it. Do know that ur suspension needs to be taken care off along with the tire and brakes to put down that much power. There are a lot of work that needs to be done before u can think about building a 250whp A20.
First off is finding a turbo with an internal wastegate that can handle 300hp. Thiis is because you mentioned that ur gonna use Sean's manifold. Also, his manifold flange is designed in a way that it would accept only certain turbos that he listed (pm him for more details on the adaptable turbos).
Then you defenitely need an LSD and OPM motorsports makes a Clutch type one, which is rather good than a phantom grip so call them up and see how their stocking is. THe price tag on that puppy is $600+.
Next thing comes the Tuning part. You need to tune that bitch so that it wont blow up the motor. Standalone is the way to go and then comes the fun part of picking ur ignition system.
Side note: I been talking to numerous guys here in new jersey and i have found only a few who can make turbo stuff and only one who can tune the standalone that i wanna get. To give u an idea of what im talking about, with help from a dragracer, i might be pushing 300whp with just a tad over 25psi with no nitrous. I might go alcohol injection to lower the Intake air temp and get a knock sensor to get the bitch not pound. But again, Im still learning and gather all the information and weighing out the possibilities of if things can be done or not and how. Jhonny is my inspiration and if that dude can do his shit in his own backyard with his buddies, then damn ill do my best.
Chadroper. shhh! there's alot of people u'll upset saying that!
Civics are lightwieghts!! literally - small light car.
I dont know if its stronger, i;m just going on my own theory.
Don't forget tho, civic engines are only small and being put into a larger car would mean it had to work harder.
I think, the b16turbo conversion would be ideal for 1/4 mile. the B16 (i think) is one of honda's best designed engines. Honda's F1 secret was getting the highest rpms, they weren't interested in low end torque. To honda more rpm = more power. 160bhp in a stock 1600cc cant be sneezed at! the downside is it's a 1600cc and drives at low rpm like a 1600cc and like i said putting it in your heavy road car, it will be slow. UNLESS. you then add torque!
Adding torque also shouldnt be sneezed at.
Adding torque from then on is simply adding bolt ons!
Personally in my own road car i prefer to boost the torque of a 2.0L by adding a turbo and keeping it simple standard(ish)and reliable...and much cheaper!
Last edited by Civvy; 08-10-2004 at 04:42 PM.
Driving around town at low rpm on the B16 is no big deal. With my lightened flywheel, it's more responsive than the A20. When I push the gas down hard, it pushes you back into the seat.
The B series blocks are not stronger than the A20, they're aluminum compared to cast iron and they open deck opposed to closed deck. That's why heavy turbocharging requires block sleeves or block guard.
I believe Crower makes a B16 stroker kit that makes it 87 mm bore X 89 mm stroke. That's over 2.1 L people. However you have to pay for it. Costs something like $2500.
No projects. Life consumes my time and money.
Since the A20 is .4 liters bigger in theory you could cram more air into it? I found a way to fit a liquid-air intercooler in the car. With 30 psi and the liquid-air intercooler and maybe that water/alchol injector thing and a water cooled turbocharger it seems like it could make 400 hp
255 lb-ft would give about 400hp at 8200 rpm. Would 260 lb-ft be managable
Well, heat is the worst enemy i suppose!
All things considered, I agree, cost aside you could build the engine! I think you could get all the aftermarket goodies for the whole car and custom make everything you cant. but, the last piece of the jigsaw being the gearbox will let down!
Dogbox? hmmm.
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