Search found 82 matches

by mk e
Fri Sep 20, 2019 9:36 am
Forum: Your car & your engine
Topic: rusEfi needs v12
Replies: 73
Views: 3001

Re: rusEfi needs v12

I think best use of W12 would be to de-stroke to maybe 3.5l, ITBs, super-hot cams. Make it revv 12,000rpm and swap into Miata. Sounds expensive, COOL, but expensive. Once you open an engine it seems like you're always in for a couple grand minimum and a change like that woud be custom crank at $3-5...
by mk e
Thu Sep 19, 2019 3:23 pm
Forum: Your car & your engine
Topic: rusEfi needs v12
Replies: 73
Views: 3001

Re: rusEfi needs v12

Agreed. Life, it sounded very much like a power steering pump low on fluid, but moving the wheels didn't change anything. Some pulley bearing, tensioner etc. The bad part is that on this engine all the accessories are in the back. Essentially inaccessible :( I guess that begs the question about the...
by mk e
Thu Sep 19, 2019 11:21 am
Forum: Your car & your engine
Topic: rusEfi needs v12
Replies: 73
Views: 3001

Re: rusEfi needs v12

It sounds like something rubbing or a bearing in an accessory or similar, I don't think thats an internal bad things kind of sound.....hard to say from the video though.
by mk e
Wed Sep 18, 2019 2:23 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

nothing at all to do with engines or ECUs but the wheels I designed are here and I'm pretty happy
by mk e
Wed Sep 18, 2019 2:21 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

I thing I have all the part I need to track down to mount the dyno to the engine....just need the engine working. The dyno came with what appear to be older GM and Ford "clutch shaft) adapters that bolt to the dyno then plug into the GM or Ford (there are 2) clutches and had bolt patterns and center...
by mk e
Mon Sep 09, 2019 1:05 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

12V and 17A is 200W. That seems like a lot of power for a throttle body. I don't really have a means of comparison, but it really seems excessive. I would install maybe a 5A flying fuse in the next version. If it blows, you know it's the raw amps. If it doesn't blow, but the driver blows again, it'...
by mk e
Sun Sep 08, 2019 7:27 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

Mine is single ETB.....it pulls a lot of power but its a single. I use a pololu driver that need a PWM and a direction signal. Our options are 7A TLE7209 or 6A TLE9201. If things are desperate there is 30A VNH2SP30. I killed a pololu driver that I think said it was 17A, the one in there now is rate...
by mk e
Sat Sep 07, 2019 12:24 am
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

russian wrote:
Fri Sep 06, 2019 11:43 pm

Yes, mostly a publicity/achievement video since v12 is a WOW. While rusEfi has done single ETB, still would need to make progress to get to dual ETB.
Mine is single ETB.....it pulls a lot of power but its a single. I use a pololu driver that need a PWM and a direction signal.
by mk e
Fri Sep 06, 2019 8:00 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

You have sweet toys :) How does it go with the valve? Does the engine start as of today? Asking in light of the "rusEfi v12" idea using your engine. I think it will be an engine again in 6-8 weeks. What are you thinking you want to test? Just will it run or ???? I'm pretty sure I'll be setting it u...
by mk e
Fri Aug 30, 2019 10:07 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

hmmmm...turned into a full rebuild when i discovered the while the piston was beating up the valve it also completely beat out the rod bearing....I hate when that happens. i still think it will be an engine again in about 4-6 weeks....as long as Lana constitutes to let me spend.
by mk e
Tue Aug 27, 2019 7:22 pm
Forum: Your car & your engine
Topic: rusEfi needs v12
Replies: 73
Views: 3001

Re: rusEfi needs v12

There is also W12 as in VAG W12 as in Phaeton/A8/let's not mention Bentley... Does W12 hold the same wow-factor as V12? :) Running Phaeton could maybe be had pretty cheap. 12 cylinders are a wonderful thing, v or w doesn't much matter imo. I've been thinking a w12 belongs in a cayman or maybe boxst...
by mk e
Tue Aug 27, 2019 6:46 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

I think all the parts I need to fix it will be arriving in the next 2 weeks. A lot of custom so the "cylinder that is coming is a blank that I need to remove about 10lbs from to find a useable cylinder hiding inside....but it should be an engine again in about a month.
by mk e
Fri Aug 02, 2019 12:14 am
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

You have sweet toys :) How does it go with the valve? Does the engine start as of today? Asking in light of the "rusEfi v12" idea using your engine. Sadly the engine has not been touched :( So, the new dyno sitting there has me motivated to fix the engine....i started ordering parts. Everything tha...
by mk e
Mon Jul 29, 2019 7:44 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

I think those valves are open or close with simple limit switches to know which? I imagine an encoder could be added to get some control but its not baked into the design and controlling low flow rates with a big ball valve can be a challenge just like controlling off-idle air flow with big throttle...
by mk e
Mon Jul 29, 2019 4:58 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

I found a stepper with a gear reduction the my ECU should be able to drive directly and a little encoder for the back I should be able to read and a big 1 1/2" valve that should have plenty of flow for the dyno...now hopefully the stepper can turn the valve and I have a working $2000 load valve for ...
by mk e
Fri Jul 26, 2019 3:23 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

You have sweet toys :) How does it go with the valve? Does the engine start as of today? Asking in light of the "rusEfi v12" idea using your engine. I spotted it on craig's list, it was right on my way home from work and he was only asking $1000.....last night it came home for $900. Its from the 70...
by mk e
Fri Jul 26, 2019 1:55 pm
Forum: Your car & your engine
Topic: FrankenFerrari - V12 Ferrari 308
Replies: 45
Views: 1938

Re: FrankenFerrari - V12 Ferrari 308

The Stuska dyno deal fell apart....I just didn't want to spend money and time setting up someone else's dyno and couldn't come to terms on a price....but last night craig's list delivered an older go-power DA-512 neigne dyno. it only rated at 800hp which I think, hope, is a little low but I'm pretty...
by mk e
Sat Jul 06, 2019 9:24 pm
Forum: Software
Topic: launch control
Replies: 84
Views: 7356

Re: launch control

Max torque is not a very useful thing to know or control too.....wheel torque is the important variable for acceleration and is engine torque times the trans and diff ratios a.d makes it so you usually have more wheel torque in 1st gear past both engine torque peak and engine hp peak and right to (o...
by mk e
Sun Jun 23, 2019 11:55 am
Forum: Software
Topic: launch control
Replies: 84
Views: 7356

Re: launch control

TURBO spool for launch.... I saw the thread and thought is was launch control as in controlled wheel spin during launch maybe using the new ETC whicuh is something I have roughed into my setup but completely untested and probably not yet functional hoped to find some clever thoughts
by mk e
Tue Jun 18, 2019 3:54 pm
Forum: Software
Topic: electronic throttle body control ETB
Replies: 262
Views: 20015

Re: electronic throttle body control ETB

You're right, its not much different....just more layers and more opportunity for things to go wrong. i'm told the OEM do all this stuff redundantly with completely separate variables and memory locations then make sure the results match, then move the throttle or maybe more accurately allow the thr...
by mk e
Tue Jun 18, 2019 12:20 pm
Forum: Software
Topic: electronic throttle body control ETB
Replies: 262
Views: 20015

Re: electronic throttle body control ETB

i guess, the next feature request would be cruise control (at least for manual transmission, no fancy automatic gearbox control). Safety wise that would need a bit of thought.....letting the computer not just follow the driver commands but open the throttle as it sees fit will want a bit of caution...
by mk e
Mon Jun 17, 2019 6:45 pm
Forum: Software
Topic: electronic throttle body control ETB
Replies: 262
Views: 20015

Re: electronic throttle body control ETB

New feature: (Pedal, RPM) > desired TPS position table I like it. I just did a 1D table in mine, pedal to desired TPS so it works like a simple cam but I really like the rpm addition thought. I thought about doing something 2D with gear selection but haven't gotten to it...and not sure its any bett...
by mk e
Fri May 31, 2019 1:57 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

:roll: hey! do we consider the rover v8 like this https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTMstXFV9j_3wOvPikM0MFYM_b2Bj-mWrlXE9sIS7hfJvEYO2kX2A with a plenum chamber on top as an ITB? Ferrari intakes are like that too. It's a design that flows well but MAP signal wise it's not like an I...
by mk e
Thu May 30, 2019 12:28 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

Another piece for the MAF path I didn't cover well is the noise but probably will make more sense after looking at the graph I just posted. Typically an intake is tuned to the 3rd reflection...sometimes the 2nd or 4th but 3rd is generally best....so there are 3 rpms where the intake is generating no...
by mk e
Thu May 30, 2019 11:35 am
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

with ITB .. has no intake manifold ... :roll: Your ITBs are hanging by zip ties from the hood then? The intake is everything from the intake valve to open air. The part you normally tune is the runner, so ITB to top of whatever stack/trumpet you have. The tuning is several things. There is the leng...
by mk e
Wed May 29, 2019 8:49 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

So ... Maximum efficiency for "high modified" Naturally Aspired (NA) engine is aprox 110-115% (F1 engine for the example) That's total nonsense Wiki says about 130 and dohc, but that's low. I saw results for a 2v pushrod engine doing 138 on an epa certified dyno back in the mid 90s and an f1 engine...
by mk e
Wed May 29, 2019 1:15 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

Edit 2: there is a reason things like sportbikes and F1 cars are all ITB and do not use an MAF....that reason is HP.
by mk e
Wed May 29, 2019 11:33 am
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

Are you shure ..?? You have any dyno tests ..?? A mix of dyno and flow data….but its not as simple as change this get that return because everything is connected. If the exhaust is a restriction then improving the intake will only have limited effect, or if the TB and/or the intake and/or cams, etc...
by mk e
Tue May 28, 2019 11:04 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

How much of an air flow restriction does the hot wire maf make? usually between 1-5% for the sensor itself....but wait there's MORE! A plenum type intake needed is generally in the 5-10% restriction, the hose connecting everything another few %. It just all adds up. There is a reason you don't find...
by mk e
Tue May 28, 2019 7:02 pm
Forum: Software
Topic: Engine control scenarios / modes
Replies: 44
Views: 1239

Re: Engine control scenarios / modes

I have vacum tank ... ands Vacum vs. TPS vs. RPM not correspond to fuel requirement ... That is a truly terrible setup that doesn't work well on any engine I've ever seen....it can't work work well if you stop to think about what's going on. On a 4 cyl you have 1 cyl on the intake stroke pulling va...