Highest HP out of a supercharger set-up
 

What's the highest out put out of a supercharge set-up that people have done?
Looking to possibly do the stillen kit. Plan is to change from water to air intercooler to air to air intercooler. E85 conversion for starters.

2nd question does the supercharger have a bov if so where is it located?

Mine will be the record (**edit**) (IF AND)when its completed next month via the 2.9 liter whipple supercharger kit which will be the stage 2 kit from RJ manufacturing. If I were you id wait to see the results from my kit and their shop car which will be getting the stage one kit on a stock motor. My kit will be on a fully built motor with a bryant racing stroker kit. Also a fully built transmission. With the right fuel set up we're expecting some very high numbers and should have some real world results very soon

If the stage 1 has the whipple whine then I'm game.

Also they are taking names for pre-order and i believe the first 10 people will be receiving a nice discount near a thousand dollars if im not mistaken. The stillen kit with a custom tune and all the supporting mods you can throw at it will net you just over 400whp depending on the dyno used and environmental conditions like temperature and humidity. There are some guys reaching around 500whp using a forum member's air to air conversion kit that modifies the stillen kit from the air to water system that's sold with it from stillen. Stillen's kit is around 6-7k and with supporting mods and custom tune can easily cost over 10k. While the stillen kit has been on the market and made to work like an oem system it's been known to cause problems as severe as a blown motor or trans. The new whipple kit is supposed to be in the sub 10k $ range and offer a diy installation and near 600whp power levels from the stage one kit. There will be 3 stages to the whipple kit which is 1...1.5...and stage 2. I believe the difference in the stages as far as the kit itself goes is mainly the size of the pulley used but obviously depending on your power goals you will need to upgrade your fuel system and possibly the internals of your bottom end. You should ask rj manufacturing about all the details as i am just a customer not an employee. My info may not be 100% accurate but i think im pretty close. Just trying to help a fellow forum member. I have nothing to lose or gain by you going either way after all i currently have the stillen kit because I prefer the power band of a supercharger to a turbo kit. Im going with the whipple kit now because i can finally reach the big power goals I have that i couldn't reach with the stillen kit

Gtm/gamma stage 2 kits are good for over 500+ hp with 93 octane with e85 you could be close to 600 whp my BOV is located passenger side intercooler pipe behind the bumper
I'm running 523 whp with just a pulley change and tune
There is a twin supercharger setup from gamma ...but very pricey ...all in all best increases for the money is a turbo setup ... just depends on what you like

But to answer your question, StillenZ84 made 560whp on the stillen A2A setup which i believe is the highest recorded SC on a 370Z. He is going for over 600 this summer. His videos are under Boosted Z all over Youtube. He leaves some serious competition in the rearview.

The whipple should be able to make power much easier though, if it comes to the market.

Any turbo setup will make all the power you need also.

There is also that Q60 that hit 561whp (11psi A to A) which I would say is a fair comparison being pretty much the same application.

Did he do this with a filter? I thought he made a pull without a filter for that.

Are these with e85 ...or 93 octane ?

who knows... probably wouldnt make a difference though unless the filter he runs is way undersized.

I think most of the people on here would like to see the RJ Manufacturing SC on a stock block. Most people are not going to go with a fully built stroker motor. I seems utterly pointless to post those numbers. Didn't Swiss370 get 560 with a Stillen/Stroker/Frozen Boost?

It is undersized. Thats the bottleneck of the whole system (well, air to air anyway) . The SC volute intake sits so damn close to the radiator there isnt enough room for it to breath properly with a filter or boot on it. When i took my filter off, I was on my way to over 600whp but belt slip kicked in at 6800 and it fell on its face twice. Wish i had that extra pulley on there at the time.

If we could set the sc back and have room for a nice big filter then the V3 would be making 600 all day on our "non stroked" VQ's.

id be curious to see the results of a before and after with the filter. the stillen filters look to be about the same surface area as the filters we have on Justins Z (ordered wrong ones) and it had no trouble making 701whp at relatively low boost.

Have you ever tried putting a vacuum gauge on there to see how bad it is?

I definitely understand your point but the the question asked by the op was inquiring about the record for SC'd 370z and my car should be done in the next month or so..we're getting really close. My transmission should be finished by fast intentions in the next couple weeks and Bell should be shipping the heat exchangers in about that same time frame. Im getting seriously excited. I can't wait to hear that whine!

Don't get me wrong, I can't wait to see some pics and vids of your setup. Is the top view going to look like the kit on a stock block or are there a bunch of other upgrades?

They're going to use my current motor and trans to test the stage one kit vs the stillen kit since I already have the stillen kit the way it comes from stillen. Then they're going to install my new motor and trans to reach for the higher numbers. They're doing that so people can have an apples to apples comparison of their kit vs the stillen kit.

And we are excited for you! But with all due respect, you can't really claim a record you don't have yet, especially so with a builder that doesn't really have a very successful history in this community.

Feel free to write your name in the record books after you've put some miles on your beast past that first glorious dyno pull.

Im honestly not sure thats actually a really good question ill have to ask but it would seem likely they would be the same or very similar. Besides aesthetics like powder coating and titanium dress up bolts which i chose to do

Jesus christ. ..i never said my car had the record. ..i said my car SHOULD have it when its done in a month or so. ..why do i get the sense I've unintentionally butt hurt some people here

If u put the same amount of time money and effort you'd be looking forward to seeing those kind of numbers too. Im not selling the kits...im building my dream car and yes i have high hopes

I have confused things a bit:

In the regular kit it isnt the filters per say that are the bottle neck, its the intake track. In order to get a boot on the sc, since it is placed so close to the rad shroud, they put a restrictive boot on it that has about an inch of clearance from the blades.

In going from that boot to the direct filter I use in my kit (Air to Air) then it opens up the sc to breath better. However, the supercharger would LOVE a bigger filter than the one I provide but there just isnt the room to do it.

This is why I am looking at building a whole new setup using the V3. Its capable of 600. The stillen bracket placement of the unit is not. Well, unless you want to run without a filter.

I have dyno sheets of my setup with the filter on then with it off. Back to back runs. Ill post them up when i get home to take pics of them.

Actually, guess i had it in my phone. See how there is a "hypothetical" line after I had belt slip? It was putting me into 600's. Its hard to see but that next line bar is 620whp.

http://i1070.photobucket.com/albums/...psou78kfsa.jpg

Sorry! My B, no need to cry out to the Lord. No butt hurt here...:tiphat: I am pulling for you!

Trust me if something goes wrong with this build I'll be the first you here from especially after spending 9 months and a small fortune on a kit that's brand new to the market. I knew there was some inherent risk involved but i didn't want to do the same thing as all the other guys via the stage 3/4 fast intentions kit so if something goes wrong and it doesn't turn out as planned ill be the first to admit it but for now i do have really high hopes for around the 900whp range. If the kit ends up not working or worse yet not even produced then I will go with the tried and true FI kit but im really hoping thats not the case because I think its cool to be a part of a "first" thats the main reason I took the risk. Breaking anyone's record was never on the list of motivating factors

Has the world ever seen 900whp from a supercharged 6 cylinder? I think that would be pretty cool. Never personally seen that. I guess its 2017 and someone has probably done it, but either way it would be cool.

Its going to have the displacement of a small v8...just under a 4.3 so yea im hoping for those kind of numbers with 2.9 liters on top of that with the right fuel set up.

Im going to assume all this love im getting has more to do with the builder and not so much my car in particular

That's pretty much the case. A lot of us are sitting here with fingers crossed you get what you paid for and it's reliable.

Well I think your goal is most likely obtainable. It may or may not have some additional challenges, but I am sure it can be done. That said, even with a 4.3L you will be at some notable disadvantages vs a v8 4.3L that tried it. I think that your goal would be more accurately compared to a v8 acheiving 1200whp with a larger whipple. The perspective I am looking at is that you have 2 less intake ports and 2 less exhaust ports to work with, less X/Y plane cross-section to fit your intercooling (due to a shorter engine plus a narrower 60 degree valley vs 90 degree), and of course less pistons and rods to spread the work out on. Also a 900whp V8 will generally be able to do this with a very stock-ish short block, where the stroked and sleeved v6 has introduced a host of potential complications that could become hurdles.

(So, I think you can get there, I just might not expect to see it on the first tuning session)

Yup... I got all the love in the world for you, nomodsjk... but I don't have much for this particular builder. Looking forward to the results, though!

You're right obviously I didn't consider that before posting. Back in October when i first started buying parts for my high hp goals i spoke with mike about what i wanted to do and originally we were going to go with the tried and true FI kit stage 3 to be precise so i bought his stroker kit he had for sale and he recommended bobby for the engine build and i agreed. After a couple months into the build the idea for the whipple came up and I mentioned that I always wanted a high hp sc system because I wanted to be different. I didn't want to just copy what others were doing and i prefer the power delivery of the sc. From the start i said that for the money I would be investing I would want around 900whp and anything less wouldn't make sense considering what the FI kit has been proven to produce with similar modifications. I knew the whipple kit would be a bit of a gamble but I seriously hope we get close or yes I'll be bummed...even if we get 850 ill be happy after all its gonna be hard enough getting all that power to hook properly. That's why I dropped the air ride and went with the robbie spec kw's, os giken diff, dss axels and every spl part made for our cars. Also i thought anything over 850-900 would just be dyno queen territory and unusable and i really wasn't interested in breaking any power records. What I really want is the fastest car not the most powerful. So yea after 9 months and more than a brand new nismo invested I have high hopes as I believe anyone here would and everyone here can believe me when I say the dyno sheet will be posted either way. Im counting down the days like a kid on the 1st of December and im hoping santa brings me my freaking power goals...

If you're dead set on making a certain whp goal, make sure you dyno it at an unrelated shop. I've seen cases where the car makes exactly what the owner wanted while at the tuner's shop, and nowhere close to the goal on any other dyno.

It would probably build some confidence if RJ mfg posted some sort, anything really, of progress from the last progress of some cad images. Anyone can draw something up in cad and say they can do it. Where are photos of what is going on? What ever happened to the hood?

Well i asked that it be dyno'd at forged performance for the final tuning process but i just picked up my car from bobby a couple weeks ago to take it to zdays and before I left it was dyno'd by someone who's not a part of rj-m but in the same group businesses that i believe share a few buildings. I don't think there will be any non-sense going on honestly. Ive met bobby in person now and have been talking to him for months and honestly he seems like a really nice guy to me not to mention im sure he's going to do his very best on my car considering the whole forum is basically watching and my car will have the first kit produced. I realize there are a few people on here who've had bad experiences with him or the shop he used to work for but i think most shops have had some displeased customers at some point and there's always two sides to a story but i really don't know what happened im just keeping my fingers crossed that bobby's going to produce a great kit that everyone can enjoy who's in the market for a bad *** supercharger system. I think everyone can agree that it would be really bad *** to have a whipple kit for our platform that out performed the current centrifugal style kits

I'm hopeful, but the fact is that there has been some serious issues in the past. The issues were not with the previous shop - he was the issue. He posted a long attempted explanation here that didn't go over well. He's also been convicted of defrauding the State of Florida for some amount over $50k. Hope for the best, but protect your cornhole.

Mike is still working on the hood. Honestly I'd be fine just modifying my current hood if it came to that. I know bobby is on a trip that he had planned for a while which is probably good timing considering he's waiting for bell to ship the first batch of heat exchangers. As for pictures of the progress I don't have any other than the ones i posted on the thread but i spoke to him a few days ago and he told me the kit should be finished in about 4-6 weeks but im just telling you what he told me..i have no proof to show u to back that up

Sorry op we totally hijacked your thread...my apologies

I didn't know any of that. I didn't even know of Bobby or rj-m until he was recommended for my engine build. I just know what I've seen from personal experience over the last 6 months or so and he seems like a nice guy to me. Hopefully he makes this kit and it proves to be a credit to the community. I have my fingers crossed. ..i just cant wait to have my car done finally

Agreed. I'll stop hijacking your thread.

Yeah, do some research here about his history and you'll understand why there are a LOT of people that wouldn't show Bobby a picture of their car, much less give him money to work on it. You should make a file with all written correspondence, invoices, emails with timelines, etc and keep it on file. Hopefully you won't need to use it, but better to CYA now than bend over later.

You're not letting him or his shop do the tuning, right? It's the Forged guys? You should be ok then.

Is that with the impeller upgrade? How many lbs of boost were you running when this dyno took place? Those numbers are amazing