SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
#16
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Do a LS2 swap with the tranny from a SS Trailblazer. Would be awesome.
|
#17
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Probably a tough fit under an SVX hood I'd imagine? I didn't think a 'V' engine would fit well where a 'boxer' engine was designed to go!
|
#18
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
You know what's funny about you? I make a joke and you actually have an answer for it I followed your build on nasioc a few years back when I was in an Impreza. You guys going to have any action vids other than the dyno anytime soon?
|
#19
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
Quote:
|
#20
|
|||
|
|||
Re: Cheapest/Easiest Way to get to ~400 crank HP
I'm still not clear on what to do here... Let say I'm going for 400 crank hp, got a built bottom end and a good single turbo... What needs to be done to the head? Will getting Delta to do the 8 mm lift (i think I read 247* duration?) intake cam be all I need for this level or am I going to have to go to solid lifters?
|
#21
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
FWIW in the UK on the 2.5 Sti engine for Time Attack cars they have big success with the Garrett GT35R which is a ball bearing model. To me looking simplistically at it, this model should work very well on the 3.3's larger displacement and being twin scroll will spool up quickly for the low down punch, but still yield big numbers higher up if numbers is your thang. If I was doing it though, even for a road car, I would rebuild the engine and semi close the deck using big liners. No point going to this expense and having it blow up. Joe
__________________
Black Betty [Bam a Lam!] '93 UK spec, still languishing Betty Jersey Girl Silver '92 UK [Channel Isles] 40K Jersey Girl @ Mersea Candy Purple Honda Blackbird Plum Dangerous White X2 RVR Mitsubishi 1800GDI. Vantastic 40,000 miles Jersey Girl |
#22
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Turbocharge that baby for 17psi. or
Intake/Exhaust/Header and a 150hp shot of nitrous. or 5psi of turbo boost and a 100hp shot or...................
__________________
Kevin Thomas 1997 2.2ltr Subaru Impreza Outback Sport Wagon (AWD/Auto) 13.03@100mph 1989 2.7ltr Subaru XT6 (AWD/Auto) 15.912@85.93mph 1996 3.3ltr SVX (AWD/Auto) 15.070@91.38mph ***R.I.P*** 2010 RAV4 AWD Sport (13.717 @ 99.19mph ) 2015 Honda Fit LX CVT (15.2 @ 90mph) |
#23
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
To define my goals further - I would like to get the peak torque around 2700 to 3000 rpm and have the car still be emissions legal. I've chosen 3000 rpm so that I get good acceleration off the line AND great efficiency on the freeway (since the engine should be most efficient at peak torque).
I've been reading up on engine related topics all night and this is what I have so far, please correct me if I am wrong and keep in mind this only applies to a N/A build. I am simply posting it here to try to retain some of what I have learned and to get feedback on whether that applies in this case: 1. From Bob's threads, it seems like larger lift would be great 2. A narrow lobe separation angle should get more torque, but worse idle and a narrower powerband 3. I'm not sure about intake duration, probably just long enough to fill the cylinders at peak torque rpm 4. Exhaust duration should probably be longer 5. Some advance in the cam should give better low end torque and improve the idle 6. I would want a long smaller intake for more ram pressure (good for low rpm), but less re-fill ability (bad for high rpm) 7. Equal length headers that are as long as possible before convergence
__________________
'93 Legacy LS (will last longer than the cockroaches) '94 SVX LSi |
#24
|
|||
|
|||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
|
#25
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
Quote:
Quote:
Larger displacement certainly didn't hurt Jack's EG33 (or 'EG35.34' if you want), the engine saw nearly equal gains across the board in HP and torque. Compression helps both HP and torque of course, but may increase NOX emission levels. Modest headwork and cam improvements while retaining the stock valvetrain can *probably* gain you 30-35 whp. I'm just extrapolating from the results we saw on Jack's engine. Add the larger displacement shortblock, more compression, standalone management (Hydra), and some nice headers with single exhaust (I prefer a single to duals for torque), and you can quite possibly see 250-265 whp, with a very streetable torque curve. Of course technically none of this is emissions legal.... |
#26
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
I agree I may have to rethink my HP desires since I would like to keep the torque at low rpm which will cut my higher rpm ability.
__________________
'93 Legacy LS (will last longer than the cockroaches) '94 SVX LSi |
#27
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
I'm now thinking of stroker options instead of an overbore, it seems like you get more bang for the buck that way...
__________________
'93 Legacy LS (will last longer than the cockroaches) '94 SVX LSi |
#28
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
IIRC you guys in CA only have 91 octane available, so that reduces the compression tolerance even more. |
#29
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Quote:
Would it be ok to do EG33 as a EG35.34 etc running a supercharger? Or would the cylinder walls to thin to run F.I. when its bored to that size?
__________________
1992 NZDM SVX Maroonish Red/Black ( 1st car ive owned with an cd player ) Has been retired 1989 Vortex 6 Maroon 1983 RX Silver Grey 1973 1400 GSR Yelo 2 Door Coupe awaiting Restoration |
#30
|
||||
|
||||
Re: Cheapest/Easiest Way to get to ~400 crank HP
Nope, it's got a 100 mm bore x 75 mm stroke = 3534 cc's
Quote:
|
|
|