Boosting a JDM 4EFE

[gorganl2000]

Still waiting on getting a knock sensor (should be sorted with one tomorrow).

One thing I noticed is it's very noisy compared to a 4EFTE. I have the det cans on it already and listened to it as I moved it out of the garage. Doesn't sound like knock but I might take the timing back a touch prior to boost for safetys sake.

Will just hammer the sensor into the block/inlet somewhere - any holes a goal..

Jay

yeah jay, given your set up, that's why i figured you would want to retard the timing initially and see how it works, then advance the timing slowly if anything

to be on the safe side

 

[Enzo]

from what i know there were 4 evolutions of 4e na engines

89-91 end 4e-f carbed version

91-95 gen 1 4e-fe (jdm only)<------ shares same bottom end and head(with water channel in the block + tb and inlet with 4efte but uses thinner headgasket

replace headgasket and you have a stonger 4efte version with the same thicker rods and fte pisons

then you have
95-97 gen2 4e-fe (jdm and eu)<----------different head and headcasting with thinner ports. diferent again headgasket thickness along with glanza rods, smaller tb and inlet(eu) four branch inlet(jdm)

then you have
97-99 gen3 (jdm only)<------------- same as above but with different distrubter setup + equal length four branch inlet

ive got a gen1 unit that im building up with an athena 1.4 mil headgasket, t3, 5e-fhe head + 8 runner acis inlet and 70mm tb

debating weather to change the piston rings or not,

hopefully some of that helps

 

[Jay]

Cheers for the info Enzo.

Aye when the EP8# was released in Japan there was the choice of two (82ps 4E-F & 100ps 4E-FE) but the 4E-F was dropped in 1992 as it was old skool technology. The 4E-FE underwent a major change in 1996 when the unit was revised for the all new EP9#. Power output fell (down to 85ps) but the overall driveability increased thanks to greater emphasis on torque and power delivery.

Elsewhere Europe and Australia got poor relations of the Japanese engines. Not only were they less powerful but some countries had a very restricted engine ranges.

The JDM 100ps 4EFE is definitely my weapon of choice too. Speaking of which I'm still waiting on this bloody knock sensor..

 

[Jay]

Okay. Maybe the half-assed knock sensor approach isn't working. I should have got a hole tapped whilst the engine was out and everything was accessible..

Anyways, I did a 30 mile lap of the penninsula this morning packing 5psi of boost. It seems nippy enough but until I get rid of the knock sensor fault code I'm not going to see the true picture. Did a compression test prior to liftoff and found around 15 bar in each cylinder. That's pretty hilarious even by my standards.

Jay

 

[Chris@CCM]

Just keep it off if it's not knockn it's not, mabby find the pont of knock then back it off 2deg or so lots of ecus don't use knock sensor the PFC dose not use it for any thing but logging and the eml light

 

[Brownster]

OZ = Australia. If you remember he built Mick Brown's Starlet (Brownster), that made 349WHP way back in the day. I believe he now works out of Hamilton Exhaust Centre.

Castle Hill Exhaust Centre is where Dale works these days.

 

[STARLET N/A]

Ive got a spare 4EFE block sitting around, might give this a shot and see how long it lasts.

 

[Jay]

Castle Hill Exhaust Centre is where Dale works these days.

Howdy Stranger!