How to get 200 crank HP out of a n/a 3.0?

[lookin]

Quote:

Originally Posted by ATaylorRacing A few years ago at Indy one of the track workers that works for a fork lift company doing repairs said that there is a huge industrial forklift that uses a Mitsu supercharged 3.0 and runs on propane!!!

By any chance do you have a make and model number?

Wouldn't it be great to just stumble upon one in a bone yard?

[comp]

Quote:

Originally Posted by lookin By any chance do you have a make and model number? Wouldn't it be great to just stumble upon one in a bone yard?

i agree

[lookin]

I have had dreams where I found an original, running, 3.0 prototype minivan with black leather interior all in great shape, in a barn, and they wanted nothing but for me to take it away, because it was taking up room.

[comp]

Quote:

Originally Posted by lookin I have had dreams where I found an original, running, 3.0 prototype minivan with black leather interior all in great shape, in a barn, and they wanted nothing but for me to take it away, because it was taking up room.

nice one ,,what color

[lookin]

All I remember, was the engine with that gorgeous turbo manifold, and that black leather interior. Oh, and hay and barn like atmosphere, with a nice old man smiling and refusing my money.

[Reaper1]

My favorite dream to this day(work safe!! LOL) was the one that I woke up crying to!! I was at a drag race and watched a twin turbo car(want to say it was some sort of funny car) go down the track....the turbos made such a beautiful noise it made me cry!!! LOL I hope it may have been a prementiion of something in the future

[comp]

Quote:

Originally Posted by Reaper1 My favorite dream to this day(work safe!! LOL) was the one that I woke up crying to!! I was at a drag race and watched a twin turbo car(want to say it was some sort of funny car) go down the track....the turbos made such a beautiful noise it made me cry!!! LOL I hope it may have been a prementiion of something in the future

there was a turbo F/C being built ,,billet I4 block etc

[jory]

Quote:

Originally Posted by Reaper1 My favorite dream to this day(work safe!! LOL) was the one that I woke up crying to!! I was at a drag race and watched a twin turbo car(want to say it was some sort of funny car) go down the track....the turbos made such a beautiful noise it made me cry!!! LOL I hope it may have been a prementiion of something in the future

The 3.0 is begging for a pair of turbos, the powerband is so awesome it must be insane with F/I.

[jory]

Quote:

Originally Posted by roguetrip How is that? the stock 3S engines usually put down 160hp but around 120-130whp like our 3.0's. He got around 90 extra horsepower, and the engine is overbuilt. I think he had over 8k into his engine IIRC. A stroker kit with high comp pistons, high flow heads and cams would be alot simpler and cheaper than sunminds setup!

Before I built the 10:1 engine my midly modded 3.0 was keeping pace with 160-170hp cars that run in the 15's. I raced an 05 tiburon gt v6 manual up to 110 and neither of us gained, we were dead even the whole race. And an 04 Sentra SE-R, he had a fender until he hit the rev limiter. That motor only had a ported intake plenum, a 52mm TB with a cone filter stuck on it, stock converter with 2 1/4 exhaust, 3.77 A543 with a stock clutch, solid motor mounts, Diamante cams, and a 93 Duster 3.0 manual computer. It got rubber into second and chirped third sometimes. With the new motor I can get rubber in second (with the aluminum flywheel it hooks up nicely you can feel it), chirp third, and sometimes chirp fourth if I drive well. I was messing with an 80's Porsche the other day, I couldn't believe it myself I had to squint to read the lettering on the rear bumper.

[roguetrip]

Quote:

Originally Posted by jory Before I built the 10:1 engine my midly modded 3.0 was keeping pace with 160-170hp cars that run in the 15's. I raced an 05 tiburon gt v6 manual up to 110 and neither of us gained, we were dead even the whole race. And an 04 Sentra SE-R, he had a fender until he hit the rev limiter. That motor only had a ported intake plenum, a 52mm TB with a cone filter stuck on it, stock converter with 2 1/4 exhaust, 3.77 A543 with a stock clutch, solid motor mounts, Diamante cams, and a 93 Duster 3.0 manual computer. It got rubber into second and chirped third sometimes. With the new motor I can get rubber in second (with the aluminum flywheel it hooks up nicely you can feel it), chirp third, and sometimes chirp fourth if I drive well. I was messing with an 80's Porsche the other day, I couldn't believe it myself I had to squint to read the lettering on the rear bumper.

When are you gonna dyno the new engine? is it running now?

Your old build sounds almost what mine is, I haven't installed my fidanza flywheel yet but hoping this or the coming weekend.

My mods at the moment as if everyone probably doesn't know yet
A604 swapped to A543 3.77FD
Polybushings solid motor mounts
KMPerformance Solid Bubble Strut
BPE Underdrive Pulley
Ported Upper Intake Plenum
58mm TB
2.5" Ram Air/Cold Air Intake
185* Thermostat
Cheetahonline 1" Intake spacers
Cheetahonline Derlin shifter bushings
Fidanza Short Throw shifter /with Autozone shifter knob
High Flow Cat
2.25" Catback with resonator
95-99 Neon Strut Tower Bar
Open element PCV system with Oil Catch Can
removed a/c, back seats, carpet
Optima Battery moved to trunk with summit relocation kit

From there My next mods are going to be installing my Fidanza lightweight flywheel. Thinking of trying some NGK-3459 plugs, Polybushings Control Arm/sway bar/tracking arm bushings and boxing in my tracking arm. Paint and hopefully some lightweight wheels before winter comes back.

Hopefully next spring Ed will have his R&D done on the heads at 200CFM so I can send him my extra set of heads, then pair that with some crower regrinds and look at some new exhaust manifolds.

[jory]

That's a big list, I did mine over a couple years. First had the stock motor/5 speed swap with few mods, blew the stock motor up, dropped in the mildly modded '87 motor that had all the basic mods, blew the clutch on a 3-2 mis shift, and now I have the rebuilt 10:1 motor with several more mods, new front struts and '88 Daytona Shelby rear springs with Monroe gas shocks. My car was weighed at 3050 with the spare and some laundry in the trunk. I'm taking it to the test & tune on the 17th. I'm shooting for 14's, it's going to be my first time at the track with bald ass tires but I can drive my Spirit well. It's a $15 entry fee, I can fill the tank and have enough for lunch probably.

[kreel]

Quote:

Originally Posted by comp there was a turbo F/C being built ,,billet I4 block etc

Are you referring to the 4000 hp Integra? (ie. only Acura part on it is the name, lol)

[RoadWarrior222]

If the goal is more power to the wheels, I shiftkitted my A670, filled it with UTF and it buttdynos at ~5 HP more go, chirps the tires going into second at WOT.

My spare motor, should I ever get started on it, I'm going to mock it up with G54B pistons, which unmolested would sit ~3mm over deck, I'm thinking that I might look at grinding the dish out of those. Additionally, there's some slightly shorter nissan rods, SR20DET IIRC that seem like they would fit, with the crank journal ground 2mm undersize. Would get this done offset, and gain 2mm of stroke. This frankenstein is aiming at 11:1 compression, ~200cc more swept volume and a closer to "ideal" rod ratio that should help efficiency, and smooth out the motor very slightly. This is all pie in the sky until I get some parts and mock it up and take all the measurements I need. Head mods will be anti-detonation radiussing and some additional tweaks to the valves that theoretically get 15% more flow out of them. Headers seem such a bastage to get really right, that I am probably just cleaning up the stockers and using them. Then I'll be doing some radiusing of the crank and other parts for reduced windage, and will fab a scraper for the pan and make some windage mods in the valve covers. Hoping to claim back about 5-10HP of the top end frictional losses like that.

I did the "ricer math" on the overall laundry list of planned mods and picking the modest figures for what everything is considered to be "worth" I was still getting something ridiculous like 280HP... but I'm expecting about 225 at the crank if everything goes right, with a 55psi FPR.

But I'm planning all this a bit weird, since it's gonna be a fuel economy engine as well, I'm even considering weaker valve springs... which are actually worth HP lower down.

Edit: I've also come up with another crazy plan, found a process for thick, hard and clear anodising. Now, what the theory behind using this would be, is that i) it will preserve a mirror shine inside the chamber ii) itself the AlO2 is a very hard ceramic that is highly insulating. This should theoretically be very good for stopping heat soaking into the chamber, keeping heat in the mixture for more power per stroke, and avoiding getting in chamber hot-spots that cause pre-detonation. Would do this in the chambers and probably the piston crowns.