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  #1  
Old 07-20-2009, 03:10 PM
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sportsidedan sportsidedan is offline
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401 V8 with a One-of-a-kind Mass Air Fuel Injection System

http://cgi.ebay.com/ebaymotors/ws/eB...m=170358522575

except for the price... this scrambler looks amazing. how good is the engine setup on this jeep?

"mass air fuel injection" : never heard of it - has anybody tried this. the man claims it delivers 425hp...

is it conveniant in a full size jeep?

it seams like a very nice scrambler but is it worth that kind of money?

thanks

dan
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  #2  
Old 07-20-2009, 03:40 PM
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Cherokee-Kid Cherokee-Kid is offline
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Check out:
http://www.mass-floefi.com/mass-flo.html

Pretty expensive but they have some advantages. I don't know if that's what is under the hood of that Scambler but it could be.
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  #3  
Old 07-20-2009, 03:41 PM
FSJ Guy FSJ Guy is offline
 
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Someone thought it was. Sold with BIN for $20,0000 US.

From what I understand, GM TBI is a speed density setup. A MAF setup has an airflow sensor and air temp sensor to better sense how much air is coming into the intake. Sure, it might be one of a kind, but by itself, that doesn't make it good.

My TBI system is one of a kind, since I did the programming on the chip. That doesn't mean it's the best out there.
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  #4  
Old 07-20-2009, 05:09 PM
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Kali Kali is offline
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im not sure i woulda put those wheels on that truck...
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  #5  
Old 07-20-2009, 05:11 PM
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mattmopar440 mattmopar440 is offline
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$3800 bucks is not worth it
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  #6  
Old 07-20-2009, 05:26 PM
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I see a lot of Ford sourced sensors in that system.
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  #7  
Old 07-20-2009, 05:34 PM
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BGW BGW is offline
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I don't mean to rub anyone the wrong way, but I have to say it kind of irritates me when people eat up the FSJ engines (Esp. the 401s) and drop them in their baby Jeeps. Please, leave the big engines for people who really need them!
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  #8  
Old 07-20-2009, 11:58 PM
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PlasticBoob PlasticBoob is offline
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Quote:
Originally Posted by sportsidedan
http://cgi.ebay.com/ebaymotors/ws/eB...m=170358522575

except for the price... this scrambler looks amazing. how good is the engine setup on this jeep?

"mass air fuel injection" : never heard of it - has anybody tried this. the man claims it delivers 425hp...

is it conveniant in a full size jeep?

it seams like a very nice scrambler but is it worth that kind of money?

thanks

dan


MPFI is totally too complicated and unnecessary in a Jeep. With that said, it's really cool and that 401 (aside from that distributor) is therefore awesome! I plan on making a custom MPFI manifold some day.
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  #9  
Old 07-21-2009, 06:40 AM
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rixcj rixcj is offline
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Quote:
Originally Posted by BGW
I don't mean to rub anyone the wrong way, but I have to say it kind of irritates me when people eat up the FSJ engines (Esp. the 401s) and drop them in their baby Jeeps. Please, leave the big engines for people who really need them!

Where did this come from?

Typically, used engines are up for grabs to whomever comes up with the money.

I bought a 401 on this forum, a while back, to put in my CJ5. It was for sale for a while, so anyone could have bought it.

Many 'small jeep" guys can use the power, just as the FSJ owners can.

Remember, they were also used in small cars ( AMX Javelins, etc.), too.


Rich
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1979 CJ5 with a 401...it goes a short way on a lot of fuel...

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  #10  
Old 07-21-2009, 07:33 AM
FSJ Guy FSJ Guy is offline
 
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Quote:
Originally Posted by rixcj
Where did this come from?

Typically, used engines are up for grabs to whomever comes up with the money.

I bought a 401 on this forum, a while back, to put in my CJ5. It was for sale for a while, so anyone could have bought it.

Many 'small jeep" guys can use the power, just as the FSJ owners can.

Remember, they were also used in small cars ( AMX Javelins, etc.), too.


Rich

I agree. Unless it's a restoration, I don't care what motor is in it, as long as it runs well.
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  #11  
Old 07-21-2009, 10:19 AM
aallison aallison is offline
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Join Date: Jun 08, 2007
Location: NE Florida
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Quote:
Originally Posted by BGW
I don't mean to rub anyone the wrong way, but I have to say it kind of irritates me when people eat up the FSJ engines (Esp. the 401s) and drop them in their baby Jeeps. Please, leave the big engines for people who really need them!

Dude, I save an 86 waggie with a 401 from the crusher. Fresh rebuilt motor, waggie in decient shape but has lots of little issues. The dude had to get it out of his yard for code violations. I picked it up 12 hours before the wrecker. I paid $300. It had beeen on Craigslist for weeks and no one had picked it up.

I will be putting the 401 in a CJ6. I am parting the waggie. What does not part, I will scrap or give away. But at least some if it lives on in other folks FSJ's and my CJ.

Better than it all going to the scrapper................
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  #12  
Old 07-21-2009, 02:24 PM
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Frank Frank is offline
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Quote:
Originally Posted by Kali
im not sure i woulda put those wheels on that truck...


Dittoes on this - it could look better... Just my opinion...
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  #13  
Old 07-21-2009, 02:37 PM
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Serious Johnson Serious Johnson is offline
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Yes, the GM TBI is a Speed-Density setup. What's on that really nice CJ8 appears to be derived from the Ford Mass-Airflow system -- pretty impressive! I've talked to some who berate the Ford system for a number of reasons, generally seeming that it's somewhat less idiot-friendly.

Being something of an idiot myself, I like the GM setup I have on my Wagoneer, and don't feel too terrible about giving up the potential benefit of a MAF system or the tiny edge to be gained from full-zoot port injection. It's a pretty big leap, in terms of benefit, from carburetor to Speed-Density throttle-body setup with closed-loop, ignition control and knock & speed sensors, and a series of incremental steps beyond that. Some of those steps may not even pay out on an engine not designed to expolit them, and some are just irrelavent to Jeep-ish vehicle use.

My hotrod Mazda Miata has a primitive MAF system; controlled by a flapper/rheostat in an airflow meter rather than the more precise hot-wire flow sensing probably employed on that CJ8. It works well enough through a very limited tuning range, but I consider it in some ways less sophisticated than the Speed-Density GM setup grafted to my Jeep. On the real road, it's effectively moot.

The 2,000 lb, 1.6 liter Mazda, with 4.30 gears, 20" tires and about 130 HP gets to 60 MPH in a touch under 8 seconds, can hit 125 MPH and usually returns about 40 MPG when driven halfway sanely. The Jeep accounts for two and a half times as much mass, maybe a little over twice the horsepower from six liters, and runs on 33" tires and 3.73 gears. It's hard-pressed to get to sixty under nine seconds, has not yet seen more than 110 MPH, and only gets close to 20 MPG when I really nurse it and get particularly lucky.

Point is, if I somehow switched fuel injection types between the two vehicles, differences would likely be vanishingly small. The main thing is to get rid of that ^%(%#* Victorian-era carburetor.

S.J.
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