924Board.org

[Slade Gunar]

hello all this is really my 2nd post here. been tuning 924's since i was 22 so its been over 3 years. back in 06 i had picked up a E-ram for under 160 complete and decided that it would serve well on the 924. i have pics that i can post as to how to set it up but it is pretty much self explanitory.

you have 2 wires running back to the cab that you will have to mount to a switch on your shifter which i need to make a photobucket account so i can post pics of all this but, you need to use a early airbox that has the scoop by the headlight as opposed to the long tube that runs after the radiator. you simply make sure all the holes are plugged on the airbox. the side that connects to the cis and the side that is removable, to start just use some strong duct tape to cover the vents on the box, down the road it would be wise to use dynamat and cover the whole plastic box. this also lowers the volume of the intake which is ok but kind of made me dissapointed because it sounds like a shop vac under your hood when it first fires up lol.

you can either run a new duct to the eram from the bottom of the car or just let it suck air after installed from the stock location. i have a peice of weather stripping in the groove that my air filter rim sat in and no filter on the car itself just a screen over the outside of the eram. i will post pics later today to make this all easier to understand.
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~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[Rich H]

*Bites tongue*

Please don't be surprised if you are met with sceptics on here....

Basically the maths on electric superchargers don't add up.

I'd be happy to eb proven wrong though...
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

[Slade Gunar]

doesnt matter if there are sceptics on it or not. it moves the fuel plate at full pressure, i just wanted to throw it out there as a option as of right now theres only 2 in the world with them on one is in england and its red, and theres mine
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[Slade Gunar]

these are pics of the one i have on in different stages of its life,

the red one i think is a better design to be honest, he just made a flat pannel for his airbox and used a peice of pvc to route airflow directly under plate which will be my next step is cutting down the cis end of the airbox and also setting it up for dual erams with hks power filters and a scoop right above.

its a easy mod to do to be honest but anything less than the eram im not sure how well it would work, ive worked with many electric superchargers on regular efi vehicles, but for something that is specifially vacuum driven fi, its sweet because you can make it backfire almost whenever you want
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[Scorpio]

Performance?
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1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT

Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!!

[Slade Gunar]

its noticeable in the lower gears, tend to hit it arround 6-7k on the tach,
switch is wired to the side of the shifter.

its nothing like one of my real turbo cars when they spool, but its enough of a boost to get the tires to slip a bit more or to give a bit more power coming through a hard turn, either way its not earth shattering but i would guess arround 5 hp to be conservative its only rated at a pound of boost on a closed pipe so its not anything great but it does turn heads when you kick it on
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[CorsePerVita]

_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS

[bnoon]

Even if the ERam doesn't make pos. pressure, the performance gains can be felt and are valid. I did an ERam on a 1999 Contour back when it was new and had near 20 HP at redline over stock and at peak HP RPM the gain was 9 HP, TQ gains were similar. I also beat or matched lightly modded SVT Contours at KCIR during our contour.org national meet in 1999 in Kansas City MS. Only mods were a custom CAI, filter, and the ERam. They laughed at me when they found out about it, but nobody was laughing when I pulled quickest ET for a non-SVT, and second quickest ET overall. I felt pretty cool after that. BTW, it was only a 14.5 second ET with 2.2 second 60 foot (BAD wheel hop).
_________________
'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
Porscheless

[Slade Gunar]

lol at why.

why u ask, because its a 924, which means its looks fast and everyone and their brothers, mammys, pappys, uncles, sisters, fathers, cousin wants to race you when u drive it arround.

as we all know this car is FAR FAR from fast, its more like a geo metro shaped like a doorstop.

i am not saying that it wont hold its own on the mountain, but on a highway rip you would be better off having ronald mcdonald push you in a red wagon then to try and be serious about racing anything with one of these.

thats whyyyy i picked the eram because i read that the only thing u can do to these cars is take it apart and bore out the engine to get a few hp out of it, besides that every other mod people say is useless on them. that being said, e-rams car for competition is a 928 with cis, so i got a used eram for 160 and figured if it doesnt work it doesnt work could still use it on a car with efi in front of the maf to overdrive the sensor like what a a'pexi afc unit does. got a old style airbox front for it, cut the front of the baffle off screwed it on punched holes in the dash to run the wires and was done. easiest and most effective thing ive done besides the torque dampener and bigthroat on the car. which before you jump on me for saying that i have a big throat, im talking about the effect they have to the drivability of the car.
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[morghen]

well it looks silly...thats for sure.
try installing a boost gauge and run some tests...with the electric gizmo runing/off and with it taken away from the intake tract.
_________________
Supercharger and EFI kits
https://www.the924.com

[Rich H]

The red 924 used to belong to the UK 924 OC chairman Martin and I had a good hard look at it's install done by apparently professional installers who had done loads before. It was quite a neat install - until the switchgear they installed failed (Which consisted of a microswitch at WOT and a 20A fuse) The flat plate was simply a bit of black plywood that clipped into the standard airbox - It cost him £600

The numbers simply did not add up.

Superchargers draw tens of HP (If not hundreds) - a small electric motor spinning a fan cannot provide that much power.

Please don't quote super efficient fans an such, the superchargers and turbo chargers are much more efficient and have a lot more development than a bent metal fan (!) and a 12V motor:



My Hydroplane motor (3phase, brushless) draws up to 150A at 7.4 volts, (Just not for long!) that's just over 1kW or 1.5 HP. The motor is water cooled as is the speed controller. The wiring is all very thick and very short and gets pretty hot. The car battery will provide huge power to the starter but the wiring and solenoid contactor are very heavy duty - The wiring used on that ERam on Martins car was standard gauge automotive wire and it was 20A fused (Professionally installed!) 12V * 20A = 240W = 0.3HP max The whole lot was switched through a microswitch.


By all means continue to tell me how good it is - I will continue to believe it's a load of old ballcocks. But that is my experience of Martin's ERam.

To convince me I would need to see a compressor plot, explanation of how a bent metal fan and small 12V motor can provide measureable boost and dyno runs done pre and post installation (Not just fan on/off) by a reputable outfit. Do that and I'll buy one tomorrow.

BTW it made noise but no appreciable difference to Martin's car's performance - that's what he told me...

Martins ERAM was known as the Dyson because of the noise - but mostly it just sucks...

_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

[Slade Gunar]

lol oh well! your mileage may vary idc if you belive me or not, and i wasnt quoting anyone with anything just said that there was only 2 of these i had ever seen on a 924 so if you think its a load of crap i could really care less, i was just throwing it out there that it was done fairly easily. everyone has different results with any kind of mod, personally i dont think its worth it to go to efi on one of these antique cars but thats just me, i wont tell anyone that its a load of crap or that it doesnt work, just observe and if you dont have anything positive to add then dont add anything at all i am not telling anyone that OMFG YOU MUST GO DO THIS MOD!! or saying how great it is, its there its installed whatev, take it at face value. and im not dynoing a 924 it would be a laughingstock when it only pulls 110 whp IF that

and btw i LOVE my shop vac sound when it turns on makes my day everytime i hear it. the best was when it was on my 13B roxy cause it sounded like i had a weedwhacker in the back and a leafblower under the hood
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[Rich H]

Good reply - it's your car and you should do whatever you want - I always do! Hence the EFi on my old car

Experience hard earned is much better than second-hand experience in my experience!

I just don't like the marketing bollocks that goes along with stuff like this.

My experience was only Martin's install and it wasn't impressive for the cost.

Happy to agree to disagree

Rich
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

[Slade Gunar]

i think it is strange though, i have a ampres gauge attached to the relay that mine came with and it buries it at over 60 amps when i have it hooked to the stiffening capactior and throw the switch. it came with a peice of 8 gauge speaker cable with a 60 amp fuse holder on it. my switching is wired to a standard toggle that i fastened to my shifter. i read on the website that they run up to 80 amps 833 watts max output but my relay is deff not rated for this, i am just wondering if the reason his wasnt strong enough was because of the install job done? i got mine second hand through ebay from a hood rich ghetto fellow who had it on his tibburon.

i do agree with you that it sounds like a silly concept to do this and completely understand your skeptisim towards it.

on a standard efi car that has a maf it would stand to benefit because it would throw the maf reading off the scale much like those apexi afc's do and overdrive the fuel injectors. but you are right about further testing towards it on a cis setup.

i do plan on keeping it on the 924 and finding a second one for a reasonable price used as well, then refining the airbox so it is less of a area to pressurize and running dual 80A relays back to the stiffening cap but as of right now i cant prove that it works and cant prove that it doesnt work

but in response to your dyson pic heres one for u


i honestly though the other eram equipt 24 had a peice of lexan attached to the airbox so you could watch the fuel ballast plate move up and back as it pressurized, that was what my plan was and make a 2nd that runs horizontally to reduce the size of the airbox and the volume it has to pressurize then throw some leds in the bottom switched so you can atcually watch the plate move up and down....... yes its true im a

BUT at least i can admit it
_________________
~Devils 24~ 82' 924
grey market euro 80' 924
1985 3oozx Turbo Z31
1986 RX7 Auto FC3
1987 Supra Turbo MA70
so many cars, so little space......

[morghen]

first step to solving a problem is admiting you have a problem

if it lifted the fuel plate it means nothing...really nothing...if you would get a 3 angle valve job you would get more than 5 hp and your engine bay would look way cooler without the tinfoil and blue/silver pipes going around.

my 5 cents.
_________________
Supercharger and EFI kits
https://www.the924.com