Nitrous and Supercharger = Sweet Combo!

[red devil]

I post here even though I am a Subaru since there are few nitrous forums.

Anyway, I installed a eaton supercharger on my 1990 130 hp stock subaru 2.2 liter. While the supercharger is not running at the correct rpm (max 9000 versus 14000) it is still putting out about 20-30 hp extra. But add a 55hp shot of nitrous and the world changes.

No supercharger = 17 sec @ 79 mph
supercharger only = 16.45 @ 81 mph
supercharger and 30 shot = 15.4 @ 89 mph
supercharger and 55 shot = 14.853 @ 93.22 mph

The supercharger totally adds to the top end, no drop off in power.

Did this tonight at PIR

 

[Mirage2LTurbo]

So what you're trying to tell us is, that $3000+ dollars later buying aftermarket parts for your 2.2Liter, you're still running slower than what a DSM could do with a bone stock 1g 2.0L?

 

[peanotation]

that supercharger took HOW MUCH off your quarter mile? just .55 seconds?

wow

 

[red devil]

$1300 in parts.

The crank pulley is currently too small and so the supercharger is not boosting like it should. With the proper size crank pulley (being made), Significant power change will happen.

 

[DevilSperm]

yeah im anxious to see what it does when you get the pulley changed, make sure you post the results

 

[Mirage2LTurbo]

$300 for a fogger kit at cheapest, you got a blower for $1000?

 

[KPWSerpiente]

That's so nice. He posts his results and some jackass who doesn't even have a timeslip or a picture of his set up bashes him because he isn't driving a DSM.

I for one like seeing people's cars improve - so keep it up.

-T

 

[Mirage2LTurbo]

That's so nice. He posts his results and some jackass who doesn't even have a timeslip or a picture of his set up bashes him because he isn't driving a DSM.

I for one like seeing people's cars improve - so keep it up.

-T

Is this better? I'm not bashing him because he doesn't drive a DSM, just some friendly rivalry because he's slower. He found it compelling enough to post on the DSM board, what'd he think, we were all going to bow down and kiss his arse?

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[KPWSerpiente]

Pictures are much better. Attitude doesn't seem to have improved. It looks like you've put a few hours and a few dollars into your car, I guess from now on every car out there that is faster than you should ask you why you even try because to them you are slow.

-T

 

[Mirage2LTurbo]

Pictures are much better. Attitude doesn't seem to have improved. It looks like you've put a few hours and a few dollars into your car, I guess from now on every car out there that is faster than you should ask you why you even try because to them you are slow.
-T

No, but if I went and posted my times/setup on a LS1 board, I would expect the same treatment, as there are a lot more 7, 8, and 9 second LS1 powered cars than there are DSM's. It's all relative, lay off my nuts.

 

[red devil]

Its all about ebay.

Nitrous set up cost about $250 for all the parts.

Blower will be about $1050 when the custom pulley is made. The blower itself was $230 shipped.

I am also getting 28 plus miles to the gallon freeway.

I too will be interested to see the results of the bigger pulley! I might set it up so I run a small 10-20 hp shot at WOT just for cooling effect. That way the bottle last for every (ok, a really long time versus 4-5 minutes) and I negate the need for an intercooler right away.

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[GSX_RCR]

No, but if I went and posted my times/setup on a LS1 board, I would expect the same treatment,

I would expect it from the LS1/Mustang boards, but why bow down to their levels? You would think that after all the disadvantages we (Imports) have, we would at least compliment and help each other out once in awhile. Not beat down on the ones that are still in development or slower than "our stock" cars. It's all relative in the sense that someone will always be faster than you. Bottom line.

Personally, I'd like to see all kinds of cars and performance. It doesn't matter what badge or who manufactured it. The only thing that pisses me off is the attitudes of the owners and the associated ego that's inflated with their cubic inches (or in this case, turbo compressor wheel size).

BTW, awesome creativity on the roots type SC route! You just don't see that everyday! Especially on a Sube! How much boost is it running now? And instead of a smaller crank pulley, how bout a smaller SC pulley? It'll accomplish the same thing, but if your crank pulley has a harmonic balancer, it'd be safer to change the SC pulley instead. Just my $0.02.

 

[Mirage2LTurbo]

I would expect it from the LS1/Mustang boards, but why bow down to their levels? You would think that after all the disadvantages we (Imports) have, we would at least compliment and help each other out once in awhile. Not beat down on the ones that are still in development or slower than "our stock" cars. It's all relative in the sense that someone will always be faster than you. Bottom line.

Personally, I'd like to see all kinds of cars and performance. It doesn't matter what badge or who manufactured it. The only thing that pisses me off is the attitudes of the owners and the associated ego that's inflated with their cubic inches (or in this case, turbo compressor wheel size).

BTW, awesome creativity on the roots type SC route! You just don't see that everyday! Especially on a Sube! How much boost is it running now? And instead of a smaller crank pulley, how bout a smaller SC pulley? It'll accomplish the same thing, but if your crank pulley has a harmonic balancer, it'd be safer to change the SC pulley instead. Just my $0.02.

Their levels? I appreciate all cars, but if you're going to go out of your way to post on a competing cars BB, don't expect the red carpet rolled out. Is this VWTUNERS.COM? Someone will always be faster, so true. If I was going for that, I'd have a T-72 hanging off the front 'Nuff with this rant.

 

[DevilSperm]

Its people like you who give dsmers bad names...stop being so cocky, youll get more respect

 

[Mirage2LTurbo]

Its people like you who give dsmers bad names...stop being so cocky, youll get more respect

Stop blaming all the problems we have on me. I give myself a bad name from being cocky and shit talking, that doesn't do anything to you. When this guy get's his car lined out and puts some good times down, that's a different story.. but to come post on another board while you're car is at 50%, not to mention the reasons I stated above.. give me a break. You're asking to be flamed.

 

[DevilSperm]

Stop blaming all the problems we have on me. I give myself a bad name from being cocky and shit talking, that doesn't do anything to you. When this guy get's his car lined out and puts some good times down, that's a different story.. but to come post on another board while you're car is at 50%, not to mention the reasons I stated above.. give me a break. You're asking to be flamed.

i wasnt blaming you specifically, it was just a general statement....we, as in dsmers, have the reputation of being cocky assholes...but the majority of people i have met have been cool as hell...it just takes a sad few ya know

 

[red devil]

I know my car isnt super fast, much less a DSM.

However, I post here because it is a NITROUS forum, which are far and few in between.

Helping and getting help about nitrous is hard so this is a good place.

If I take a flame, so be it.

 

[peanotation]

I know my car isnt super fast, much less a DSM.

However, I post here because it is a NITROUS forum, which are far and few in between.

Helping and getting help about nitrous is hard so this is a good place.

If I take a flame, so be it.

i hear that, i don't drive a DSM, and my car is probably the slowest on this board (145hp stock with a 2700lb car, 200hp with nitrous) but i'm here to learn since this is probably the most diverse nitrous forum with a wealth of information and i probably wouldn't have gone nitrous without it.

 

[red devil]

Well, it isnt so sweet anymore. I lost a piston or valve last night. I was running about 8 lbs of boost and a 60 shot of nitrous. I dont blame the nitrous, I blame the supercharger and the fuel management. Or should I say, lack of fuel management. I got impatient and wouldnt wait for my rrfpr and just ran with my normal set up. over and over. finally I melted a hole in something. Car still runs but just on 3. Bleah! Time for a spendy overhaul.

 

[Gigaah]

Do you have any sort of EGT gage or a datalogger? Its not fun melting your engine!

 

[DSMJim]

There's a whole lot of BS flying around here. Either drop it or posts are gonna start getting deleted and or thread locked. Who cares what he runs or what car he has. This is a nitrous forum to talk about nitrous, not a track racing forum so we can all laugh at each others time slips. You guys wanna laugh at somebodys time slip then laugh at mine, we'll go from there.

red devil: You say your waiting for a bigger pulley, that would make the charger spin slower. You need a smaller pulley to make it spin faster and create more boost.

 

[red devil]

I had a bigger crank pulley made, since the e-62 i am using has a clutch so you cannot put a smaller pulley on the SC itself.

The new pulley was machined out of aluminium and is 7 1/2" in diameter and put out about 12 psi when the belt was TIGHT! by loosening the belt I could change the max boost produced as the belt would slip at the higher boost levels. Not exactly precise but it worked fine until my little incident.

 

[Addict]

Props to you for putting this together yourself.

Keep it up and post back when its all done.

 

[na90dsm]

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nice supercharger setup dude. post soem gains when the pulley is changed.

 

[red devil]

Well I rebuilt the engine for a cost of $275. Not bad, 4 pistons for $117, rings $44 and heads gasket set for $107 plus some extras. Took 16 hours to pull, rebuild an reinstall.

Since I blew the motor, I quite being stupid and installed a rrfpr and a wrx fuel pump. I have rallycrossed the piss out of it since then and have had no problems, but then again this was with that low psi boost, maby 5 psi at max. But it is fun as hell!

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I have had problems with the nitrous since then and have yet to get on it at PIR with NO@ boosting me into the 14's.