e ram tested

[Earthworm]

From the description I would say it was engaged mid run.

Of course if multiple runs were made with/without it installed the same day that would be a better test.

[Myxalplyx]

Originally Posted by SEA Sleeper

Now, I may be exposing some ignorance in the world of drag racing but how is it that his car reached a higher trap speed but had no improvement on his 1/4 mi time?

Here is one possible scenario. The E-ram could be considered a restriction in the intake track at low speeds due to less electrical draw or something like that. In this case his take off from idle to let's say the 300ft mark is slower than stock. However, as he goes faster, the E-ram could spin much faster allowing more air than stock to get into the intake than stock, hence more power. So, this could make up for his slow start off but not enough to make the car quicker. The car is faster though so if the car was to go further than the 1/4 mile mark with the E-ram vs a non-Eram installed SVX, it would've passed it at some point.

This is what would take place between a DOHC 2.5RS vs a SOHC 2.5RS. One has a better low end (SOHC) and one has a better top end (DOHC). They both get to the 1/4 mile mark at the same time, however the DOHC would have a slightly higher trap speed. In the end, it would pass the SOHC 2.5RS had they raced further.

Ok...that's ONE example. I tire of typing!

[svxsubaru1]

Originally Posted by Beav

Hmm... a $79 leaf blower from Home Depot is a lot cheaper than NOS.

*wonder if I have anyone ready to try this...*

Yeah but you want 2 of them so you can do the spit maf trick easiley, then the maf will be able to read the 500hp worth of air your getting.

[TomsSVX]

I was speaking of a model airplane engine. the E-ram may have helped him with his trap speed simply because the svx breathes deep. In low end there is more than enough flow to keep the engine satisied. Once it starts flowing more(higher rpm) the intake may become a little more restrictive(this is where the fan may help) this will bump his trap speed up but to be honest I feel it mainly effected HP rather than torque since the torque is more relative to ET like trap speed is relative to a power/weight ratio. So torque curves remaining relatively the same the time will be relatively the same but when HP is bumped, the trap speed gets bumped....Hope it wasn't too cunfusing for ya cuz it is still confusing me

Tom

Those Starter motor powered turbines look neat. Can't say I'd install one of those either though. What guarantee do we have that the injectors will be able to provide enough fuel even w/ it blowing into the MAF. I'd rather run stock than lean. The SVX (USDM) runs frighteningly lean as it is. I like having piece of mind that lean detonation is not on my engine's transcript.

Just my $.02

Originally Posted by Myxalplyx

Here is one possible scenario. The E-ram could be considered a restriction in the intake track at low speeds due to less electrical draw or something like that. In this case his take off from idle to let's say the 300ft mark is slower than stock. However, as he goes faster, the E-ram could spin much faster allowing more air than stock to get into the intake than stock, hence more power. So, this could make up for his slow start off but not enough to make the car quicker. The car is faster though so if the car was to go further than the 1/4 mile mark with the E-ram vs a non-Eram installed SVX, it would've passed it at some point.

Lastnight when we were discussing this I was thinking along the same lines. I still agree but I'm having trouble w/ this explanation and I'll explain why.

Now, if the motor speed responds to RPM then this would make sense. However, my understanding is that you basically have a small electric motor constantly blowing the same rate into the intake. If this is the case, then how would the engine benifit at high RPM while being starved / restricted at lower RPM? If the motor can meet the demands at high RPM why does it cause restrictoin at lower RPM? It just doesn't make sense to me. I'm guessing that if the e ram is spinning at the same rate at all times then it may have to do w/ intake vaccum but that's just a guess. I'm trying to think of variables in the intake system and VAC is one of them. I honestly don't know though and that's why I'm asking.

Well, now that I racked my brain over this concept, I suppose if it was turned off at low RPM then forcing the air to move around the inactive fan blades would cause restriction.

Thoughts anyone?

What were the connections involved when connecting the e ram?

[Myxalplyx]

Originally Posted by poweredx2

I got my car back from ammco with my new tranny.I ran a few passes at the track but I didn't manage a single 14 second pass I hit about 15.0-15.3 at around 94 mph.Which is due to my tires are very slick.I met a kid with a civic that had that e ram supercharger,he swore this thing was awesome,well he did run 15.7 at 88mph with the eram on and16.2 at 85mph with it off,well I paid him 40 bucks to test it out.We had it on the svx in about 20 minutes.My times were still 15.1-3 but at about 99mph,I must say that this thing really pulls hard the faster you go.I like this gadget but truly won't pay 300 dollars for it,maybe two,also I notice that my voltmeter would lose nearly half a volt when the eram is on.Any thoughts

Man, I wish you took a picture of it.

[94svxred]

I think that $300 for .3 seconds is'nt worth the dough Better off buying a tornado fuel saver(buy it now Ebay price $35.99) .I had a Tornado i my GMC V6 Sonoma and it made quite a difference!!! I'll bet the Tornado can give .3 tenths ,For $36 bucks MUCH BETTER DEAL I think i'll get one for my Subie FYI: The Tornado Model for our svx's is KI-75!! THAT'S MY 2 CENTS

[TomsSVX]

im drunk

Tom

[Myxalplyx]

Originally Posted by 94svxred

I think that $300 for .3 seconds is'nt worth the dough Better off buying a tornado fuel saver(buy it now Ebay price $35.99) .I had a Tornado i my GMC V6 Sonoma and it made quite a difference!!! I'll bet the Tornado can give .3 tenths ,For $36 bucks MUCH BETTER DEAL I think i'll get one for my Subie FYI: The Tornado Model for our svx's is KI-75!! THAT'S MY 2 CENTS

*Shakes his head*

He said he also gained 5mph in his trap speed. 5mph!!! Powered, if you happen to get your hands on another one of these, PM me. I'd like to do some dyno runs with and without it.

[poweredx2]

Sorry it took long to return,my increased trapspeed was do to worn tires and massive wheelspin.I think the e-ram works somewhat by cramming more air into the engine at low rpm and giving you a ramair effect at high rpm.I purchase new tires and my car still pull a 14.92 at 94mh,without the eram.I'm sure it will pull a 14.7 after I install an inline pump with the later to be purchased eram.Well people will always doubt something will work but with the stage one software it will be a fairly strong setup without nos.Also the inline pump will be for something else a little further down the road.

[Myxalplyx]

Originally Posted by poweredx2

Sorry it took long to return,my increased trapspeed was do to worn tires and massive wheelspin.I think the e-ram works somewhat by cramming more air into the engine at low rpm and giving you a ramair effect at high rpm.

Originally Posted by poweredx2

.........I ran a few passes at the track but I didn't manage a single 14 second pass I hit about 15.0-15.3 at around 94 mph.Which is due to my tires are very slick. I met a kid with a civic that had that e ram supercharger,..................well I paid him 40 bucks to test it out.We had it on the svx in about 20 minutes. My times were still 15.1-3 but at about 99mph, ..............

Sorry if this is sounding annoying but I just like to be clear on some things. Are you saying that your tires became so worn between your first runs between 15.0-15.3@94mph that by the time you installed the E-ram and retested it, you got a 99mph trap speed? I thought this was all attributed to the E-ram but you are saying that it's a toss-up that the 99mph trap speed is partially the E-ram and partially the worn tires right?

[mbtoloczko]

I get the impression that he was saying that by the time he got to install the e-ram, traction had become worse, but he was able to maintain consistent 1/4 mile times because his trap speeds were improved by the e-ram. So, the e-ram provides a HP improvement out to at least part of the 4000-6500 rpm range utilized by the 4eat during full throttle runs.

[poweredx2]

With my new tires my 60 ft dropped from 2.2 to 2.16 but my trap was still around 94mph,I was saying that with my worn tires and the added power of the eram that caused the increase in trap speed,hell I have ran a 14.5 at 110 on nos second gear wheelspin is a blast.

[Myxalplyx]

Originally Posted by poweredx2

hell I have ran a 14.5 at 110 on nos second gear wheelspin is a blast.

Gawd, you don't know how bad I'd love to run trap speeds in that range. That's a highway giant killer......*cough* I mean, a really fast track car.