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Underbody braces, turbos and more!

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 Post subject: MPFI G10
PostPosted: Sun Sep 14, 2008 6:45 pm 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
I am looking to use a G10 motor to drive a generator project i am working on..

i would like to have a MPFI motor.. the problem with this is that i cannot find any that are MPFI N-A. i have found a pic of a motor that was converted to be used on a airtrike it is MPFI.

what i am wondering is if they used a turbo motor and did not use the turbo

the link to the pic is

http://www.airtrikes.net/engines/large/jasons_g10_l.jpg

SAM


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 Post subject: Re: MPFI G10
PostPosted: Sun Sep 14, 2008 7:40 pm 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
humm just read in a diff topic that the turbo ecu is batch fire on the injectors.. this will be some what pointless trouble if they are batch fire..

can some one verrify that the turbo is batch fire?

sam


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 Post subject: Re: MPFI G10
PostPosted: Mon Sep 15, 2008 3:34 am 
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Joined: Mon Jun 18, 2007 1:35 pm
Posts: 2433
Location: Regina, SK
samrock wrote:
humm just read in a diff topic that the turbo ecu is batch fire on the injectors.. this will be some what pointless trouble if they are batch fire..

can some one verrify that the turbo is batch fire?

sam


Well you gotta do some more reading, if you want to just unblot a turbo, then expect the motor to run well, but it is possible to unturbo a motor though and have it perform well.

All Suzuki G series engines use BMPFI, if you want SMPFI, then you'll need to look into building a MS to replace the ECM, and setting it up for your motor to control the FI of your choice.

These engines were designed and built before cheap computers could handle SMPFI, and our cars are Econo Boxes.

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My cars:

J. McBean: '98 Suzuki Swift 1.3L 16v SOHC 5sp+ "Mk5" Made in Canada
The Mini Rattler: '94 Suzuki Swift .993L 6v SOHC 5sp+ "Mk3" Made in Canada *The Winter Beater*
B. Berry: '90 Chevrolet Turbo Sprint 1.0L 6v SOHC 5sp+ "Mk2" Made in Japan

I got 18MPG in a 3cyl with a 5 speed manual 4dr, '93 Metro! :yeahyeah


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 Post subject: Re: MPFI G10
PostPosted: Mon Sep 15, 2008 6:09 am 
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Joined: Tue Mar 16, 2004 6:23 am
Posts: 1750
Location: Washington, DC
Gamefoo,

I think our engine is an exception, pretty sure the SOHC 16V is sequential. There are separate outputs from the PCM for each injector.

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 Post subject: Re: MPFI G10
PostPosted: Mon Sep 15, 2008 9:06 am 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
yea after reading a bit i was some what afraid it was batch fire not sequential. so in short i dont want it bad enough to spend the R & D time to convet an ECU.

the only other option would but to purchase a EMS they are only about 1k http://www.sdsefi.com/specific.html this is a sister to the EMS that are used on the aircraft conversons.. the next problem that would come up is if i could get that system to work with the gaseous fuels i want to put on the generator skid..

Sam


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 Post subject: Re: MPFI G10
PostPosted: Mon Sep 15, 2008 11:12 am 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
well i just sent SDSEFI a email and the SDS system is batch fire...


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 Post subject: Re: MPFI G10
PostPosted: Thu Sep 18, 2008 7:53 pm 
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Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11672
Location: columbus, ohio
here's the write up for machining the injector ports on a n/a g10 head.

viewtopic.php?f=11&t=25103

my mk2 turbo3 rig uses one signal from the ecu for all 3 injectors yet delivers more precise fueling than the tbi n/a setup. it also gets better mileage.

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 Post subject: Re: MPFI G10
PostPosted: Mon Sep 22, 2008 8:28 pm 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
I have searched around for a flywheel torque curve with the +10 cam installed and cannot seem to find one... does any one have one they would like to share..

From what I read every degree you advance the timing you lower your power band by 100 rpm.

This means with a +10 cam gear on a motor that is at 2000 RPM will be making the same torque as a stock motor at 3000 RPM.

Stock motor at 3000 RPM makes approx 55 ft. lbs so 3000x55/5252= 31hp
Stock motor at 2000 RPM makes approx 48 ft. lbs so 2000x48/5252= 18hp

So for a +10 cam gear I would make 55 ft. lbs at 2000 so 2000x55/5252 =21hp

Am I correct?
Only a 3 hp gain.


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 Post subject: Re: MPFI G10
PostPosted: Tue Sep 23, 2008 12:15 am 
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Location: Ontario, Canada
Are you correct?
I doubt it.
Theres more to it than that.
If you were though, 3hp at 2000RPM would be huge, close to 15%.

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 Post subject: Re: MPFI G10
PostPosted: Tue Sep 23, 2008 11:19 am 
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Joined: Sun Sep 14, 2008 11:09 am
Posts: 7
Location: south louisiana
suprfly

do you have a FWP dyno chart for the 1.0l stock.

The problem i am having is i have located one chart for the 1.0 and it starts out at 2000 rpm but at 2000 rpm the motor is only making like 17 almsot 18 rpm.

i need about 30hp at 1800 rpm.

do you have a cam grind to make power at lower RPM


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