View Full Version : A build philosophy I can get with: 700hp, 2100lbs.
el_jefe
03-20-2012, 10:53 PM
This is the direction I'd like to take an 818 in
http://youtu.be/HmscSzFurwg
thestigwins
03-21-2012, 12:42 AM
Matt Farah has come a long ways. Great video! Makes me want an 818 more and more.
I'm pretty sure I would end up killing myself in that thing. I thought 400HP in an 818 was going to be obscene...but 700 is insanity.
riptide motorsport
03-21-2012, 12:23 PM
But how do you get 700 hp from a subi??
fateo66
03-21-2012, 01:06 PM
But how do you get 700 hp from a subi??
GT40 or bigger turbo! Or twin turbos.
Though it would be alot easier if we could fit a eg33 motor....
crash
03-21-2012, 01:27 PM
600 is pretty easily doable from what I have seen. It won't last a heck of a long time, but it is doable.
carbon fiber
03-21-2012, 01:29 PM
if you sneeze, take your foot off the gas pedal first! (not kidding)
But how do you get 700 hp from a subi??
It's not easy or cheap but it can be done.
http://forums.nasioc.com/forums/showthread.php?t=2319500
el_jefe
03-21-2012, 07:38 PM
More that 500hp, and an EJ is a time bomb unless it's been fully built from the block up.
More that 500hp, and an EJ is a time bomb unless it's been fully built from the block up.
We had something similar in the army - we called them hand grenades
Even with a built bottom end I don't know that I'd trust it at that level of power.
crash
03-22-2012, 09:26 AM
Here's a 6 cylinder Suby built to a claimed 900 HP. Yeah it's six cylinders, but you get the idea...
http://www.outfrontmotorsports.com/600hp_setup.htm
el_jefe
03-22-2012, 11:17 PM
And here's an 850php EJ 4 cylinder
http://youtu.be/YiQ6FcyiPag
But I'd say it's easily got $30k in the motor as a guess
shinn497
03-23-2012, 07:23 AM
I think 600 hp is doable with a built EJ257 with a massive turbo running E85 plus supporting mods. By my calculations that is what you would need to get a comparable power/weight.
What I'm not sure about is could you get such a torque curve as that would require a combined supercharger/turbocharger. I think that would be the significant challenge.
E85 is available at quite a few gas stations in my city so I'll definitely have an E85 map for mine. I'm planning on a hybrid 2.5/2.0L engine setup so I'm already going to have to have a custom map done so I might as well have the tuner add that too.
Niburu
03-23-2012, 09:15 AM
I think I may have to build two 818's one for the track and one for the street.
Driving around on public streets with over 300hp is going to be overkill and probably get me arrested.
skullandbones
03-23-2012, 11:11 AM
I thought it was interesting that "Out Front" had a disclaimer that drivers should have experience in a 400+ hp sand rail before attempting to drive a rail with their engines. When you apply that much hp to a car, it becomes a projectile in the hands of an inexperienced driver. This is an extreme situation with ultimate light weight and high hp together. It really pushes the envelope. I guess the cost factor will limit these a lot but if I was going to go that route, I think I would get some professional training, first. WEK.
Note: That driver in the white Subie was outrageous!!!
mekeys
03-23-2012, 11:23 AM
Can anyone say "OVERKILL"
Mel
Silvertop
03-23-2012, 11:31 AM
Can anyone say "OVERKILL"
Mel
That has occurred to me too. I'm not sure what the application is for a car that small and light with 700+ horsepower. Perhaps for straight-line use only, as a drag racer, assuming the operator could get enough traction. Seems like it would be otherwise impossible for normal humans to drive. But to each his own. It's a kit car. Build it the way you want to...........!
crash
03-23-2012, 12:30 PM
I must agree. If you look at my many posts over on the "other" forum under the GTM area, you will see where I state two things repeatedly. 1) Anything over about 500 HP is useless unless you do a bunch of other things to be able to use the power, which must people not only have no idea how to do, but also don't want to spend the ridiculous amounts $$ required to do it...like $600 a piece tires, $30k drivetrain, etc. And 2)It is my recommendation that anyone, even owning a STOCK lower HP FFR of any kind, take a driving school of some sort that LETS YOU USE YOUR OWN VEHICLE so you learn exactly what YOUR car can and can't do. A good place to start is at something like a NASA HPDE event or www.hookedondriving.com. :)
It is my recommendation that anyone, even owning a STOCK lower HP FFR of any kind, take a driving school of some sort that LETS YOU USE YOUR OWN VEHICLE so you learn exactly what YOUR car can and can't do. A good place to start is at something like a NASA HPDE event or www.hookedondriving.com. :)
Good advice. I only wish there was one here in Indy that let you use your own car.
evo818
03-23-2012, 03:13 PM
Good advice. I only wish there was one here in Indy that let you use your own car.
Have you checked out Putnam Park? I've been out there before and they run all kinds of events where you drive your own car.
Good advice. I only wish there was one here in Indy that let you use your own car.
I would check out HPDE events put on by car clubs like PCA and BMW clubs. You use your own car and they don't usually care what kind of car you use. The ride along instructors can range from very good to mediocre but at least you can drive your car to your limits in a safer environment, and for not a lot of money.
Have you checked out Putnam Park? I've been out there before and they run all kinds of events where you drive your own car.
No, I'd never heard of it. Looks like they have a few events you can do for ~$250 which I can swing. Thanks for the info.
el_jefe
03-23-2012, 05:35 PM
Can anyone say "OVERKILL"
Mel
There is no overkill, only "open fire" and "I need to reload"
apexanimal
03-24-2012, 09:46 AM
No, I'd never heard of it. Looks like they have a few events you can do for ~$250 which I can swing. Thanks for the info.
yeah that's over by where i grew up... nice facility... one lap of america usually does one of their events there too...
bugeye_fever
03-26-2012, 07:05 PM
Ah the RCM Gobstopper, that thing is amazing. How come the US never gets the good motors.. To think if the US had never received the EJ257 and got the EJ207 instead.
shinn497
03-29-2012, 07:14 AM
Personally I can see a point to having F1 levels of power/weight
BRAGGING RIGHTS
Other than that no Idea. I don't want to canyon carve in something that powerful.
metalmaker12
04-01-2012, 10:35 PM
I just want like 350-400whp, which is easy with a sti motor
many have built sti motors to 700 plus hp some have broke 1000hp
In fact the subi engine will have more torque than the toyota 2 liter in that lotus
15k- 25k in parts
Fully built bottom end
Fully built heads
Fully built tranny
Insane carbon carbon clutch
Billet flywheel
meth injection
Big turbo or twin charger kit and massive air to water intercooler
Xusia
04-02-2012, 04:29 AM
15k- 25k in parts
I mean no offense when I say it doesn't seem to make a lot of sense to spend that kind of money upgrading that particular engine when there are other options. Unless you really MUST have an 818, the GTM with an LS3 - which I've seen new for less than $10k - seems like it would be cheaper AND more reliable; given a stock LS3 is close to 500 HP and therefore wouldn't need modifications to reach your goals.
I'm not trying to talk you into, or out of anything. Simply pointing out something you may not have thought of... :)
shinn497
04-02-2012, 05:02 AM
I agree with you xusia.
Honestly the appeal of the 818 for me is COST. For 15k this car will be fast. For 20 k this car will be REALLY fast and for 25k this car will be stupid fast. That not even the cost of a budget GTM. However once you go past that I think I you get diminishing returns with regards to reliability AND usability. The gtm will be lower, wider, and heavier and is engineered to handle the 400+ hp. I should say I'm 25 just barely starting my professional carreer and putting away 500$ a month to save for the 818 (also responsibly saving for emergency, retirement, and misc other things). With the 818 I WON'T have to wait 10, 20, 30 years to cough up the dough. I might be able to build one in 2-3 years and drive that street beast while I'm still youngish.
However there are people that just MOAR POWER. They have the money and the will. And the beauty of a car you build yourself is it is totally possible.
EDIT: For 300whp your looking at the same power to weight as supercars like the ferrari 458 or even an aventador. We're talking 5k MAX. Granted you won't have the same top speed but how much more power do you NEED in a car that costs less than a GTI....
And here's an 850php EJ 4 cylinder
But I'd say it's easily got $30k in the motor as a guess
Now that is how you drive, full on attack mode!!
Niburu
04-02-2012, 09:30 AM
Now that is how you drive, full on attack mode!!
word to the wise
Drive like that in Virginia and you will get arrested.
There is also Felony speeding with mandatory jail time should you get into the triple digits.
Xusia
04-02-2012, 11:47 AM
Drive like that in Virginia and you will get arrested.
There is also Felony speeding with mandatory jail time should you get into the triple digits.
We have a similar law in Oregon. I don't think jail time is mandatory (but possible!), but they can arrest you, take your vehicle, and the fine is ENORMOUS. Chances are good you'll lose your license.
shinn497
04-02-2012, 11:58 AM
In CA it can be considered atempted manslaughter or something.
Class B misdemeanor in Indiana. How sad is it that a lot of us car guys know this stuff off the top of our heads?
fixedgear
04-02-2012, 04:16 PM
My 2011 WRX is a solid daily driver, 265 hp with no mods but a Stage II is needed (Cobb AP and downpipe). A built STI engine with 425 hp would be pretty sick in such a small car.
word to the wise
Drive like that in Virginia and you will get arrested.
There is also Felony speeding with mandatory jail time should you get into the triple digits.
When I am in virginia I do drive like that... on VIR.