Vehicle Owner

Member ID: HowlerMonkey

Location: West Palm Beach, FL

Vehicle Info

1991 Infiniti M30

Bragging Rights

  • 1/4 Mile0 sec @ -1 mph
  • 0-600sec
  • Top Speed136mph
  • HP260
  • Weight3100lbs

Major Upgrades

  • turbo
  • nitrous
  • bore increase
  • port and polish
  • supercharger
  • extrude honed
  • stroke increase
  • engine swap

Ratings

    • Currently 3.0/5 Stars.

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Last updated: May 10, 2009

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Marcus’s Infiniti M30
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4 guestbook comments

 

 HowlerMonkey's 1991 Infiniti M30

 

1991 infiniti M30 with 1981 L28et (280zx turbo drivetrain) running on a 2001 engine management system (works but running 1991 ecu until developement is complete on OBDII system).

HowlerMonkey's 1991 Infiniti M30

This car originally came with a VG30 with a front sump (Z31 is rear sump) and I found that fitting a turbo from a Z31 was a huge pain in the ass that results in a very dangerous steering shaft angle that causes the steering to bind (not cool) as well as the turbo occupying the space used by the steering rack.

 HowlerMonkey's 1991 Infiniti M30

Since my other car was a 1984 maxima (above last year rear wheel drive) fitted with a turbo, I had a left over front sump pan and extended the pick-up to fit to a L28et I built from parts I had around.

The L28et in question turned out to have broken piston skirts and my other one (l28 non turbo) had been filled with water by a hurricane which resulted in horribly rusted bores.........so.......I hammered the flat top pistions out of the non-turbo rusty engine, cleaned them up and found them undamaged.............amazing after the trip through rusty bores courtesy of a 3 foot pry bar and a big hammer.

 I then fitted the ghetto turbo oil drain I've been using for 2 decades that can be installed in many cars without removing engine or pan.   I drove this setup for 40,000 miles after I installed it on the stock L24e in the maxima above but I did this one when I had the engine on the stand.

HowlerMonkey's 1991 Infiniti M30

It is made from another oil pick-up and removed the screen netting me a perfect flange with tubing poking out for perfect penetration into the pan.....then it's just some ultra copper and you get a leak free oil return that does not leak.

Fitting the engine was easy in this car that never came with an inline engine.......scary easy.

I tried the maxima engine mounts and they were perfect for front to back dimensions  but 2 inches too high so I cut up some 240z mounts and offset them.

 HowlerMonkey's 1991 Infiniti M30

The stock turbo elbow from the 280zx clears everything easily.

HowlerMonkey's 1991 Infiniti M30

This car will end up with a OBDII nissan quest/frontier/villager ecu which allows you to easily flash it through the OBDII port but I am currently running the low impedance 300zx turbo top feed injectors using dropping resistors. 

Strangely, the mixtures are damn close if not perfect which really shouldn't be but I guess running low impedance injectors with dropping resistors on a high impedance (saturated) injector driver slows down the opening time because of the much lower current than the injectors are used to seeing.....I guess I'm just lucky that they work great in all rpms with a great idle.

This allows me to run the turbo injectors with a non-turbo tune but the final tune will be done with nistune to get everything perfect.

I'll venture a bet the M30 ecu's learning capability is partially responsible for for the near perfect mixtures since I tried 4 sets of injectors I had lying around and found that the high impedance non-turbo (came on vg30) worked fine (as they should...but too small for boosted engine), the high impedance turbo injectors (z31 turbo...late) are pig rich everywhere, the low impedance non-turbo with dropping resistors are lean every where and the aforementioned low impedance turbo injectors (260cc) just happen to work fine.

After honing the turbo block and installing the non-turbo flattops, I had dead perfect compression and it burns not a drop of oil.

The tranny is a built 3n71b and features a 2700rpm stall speed.

I have a FS5R30a tranny (bulletproof) and have Austin Hoke's VG30 pattern to L28 pattern to fit this VG30 only tranny to the L28 in this car for later.

My total expenditure on this project including purchase price of car is $1,300.

Guestbook

Displaying entries 1-4 of 4

HowlerMonkey  

Posted by: HowlerMonkey

06/02/2009 03:47PM

Tranny back in car........runs sweet.......so sweet it has been made my daily driver. In a few weeks, the engine gets the boost upped to 12psi and the intercooler goes on now that most everything is buttoned up.......except the A/C.......damn hot.

HowlerMonkey  

Posted by: HowlerMonkey

05/18/2009 04:41PM

Popped the tranny on the first drive (they don't like sitting 5 years) so it came out the next day and should be back in a day after the clutch frictions and seals get here.

andersen_knight  

Posted by: andersen_knight

05/12/2009 10:22PM

ride looks good. keep us posted on ur infiniti, cheers

2fastforuride  

Posted by: 2fastforuride

05/09/2009 02:53PM

NICE RIDE!!! 5 STARS. LET ME KNOW IF YOU LIKE MINE AND PLEASE RATE ME. THANKS

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Vehicle Owner

Member ID: HowlerMonkey

Location: West Palm Beach, FL