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-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   Highest HP out of a supercharger set-up (http://www.the370z.com/forced-induction/121793-highest-hp-out-supercharger-set-up.html)

nomodsjk 05-31-2017 11:13 AM

Quote:

Originally Posted by phunk (Post 3658690)
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)

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...

Chuck33079 05-31-2017 11:23 AM

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.

TopgunZ 05-31-2017 11:38 AM

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?

nomodsjk 05-31-2017 11:44 AM

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

Chuck33079 05-31-2017 11:47 AM

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.

nomodsjk 05-31-2017 11:47 AM

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

nomodsjk 05-31-2017 11:49 AM

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

nomodsjk 05-31-2017 11:55 AM

Quote:

Originally Posted by Chuck33079 (Post 3658732)
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.

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

Chuck33079 05-31-2017 12:02 PM

Quote:

Originally Posted by nomodsjk (Post 3658734)
Sorry op we totally hijacked your thread...my apologies

Agreed. I'll stop hijacking your thread.

Quote:

Originally Posted by nomodsjk (Post 3658736)
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

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.

nomodsjk 05-31-2017 05:07 PM

Quote:

Originally Posted by TopgunZ (Post 3658369)
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

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

EP370z 05-31-2017 07:43 PM

Its all good. I would be interested in the whole kit but I also want to see what a stock motor tuned can do. And how a stick motor sounds with the supercharger on it, if it makes that famous whine that they are known for. And if it can be reliable. All that stuff will play a huge factor in me getting the kit.

TopgunZ 05-31-2017 08:00 PM

Yes, Si impeller and it was just over 12psi. If the serp belt would have held the power I would have seen over 14 psi and over 550whp.

phunk 05-31-2017 08:15 PM

Quote:

Originally Posted by TopgunZ (Post 3658365)
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.

I just unpacked the kit to get ready to install it on that car here and NOW I see what you are talking out. L.O.L. what a piece. Definitely will be putting some thought into possible ways to avoid using that particular component.

Jayhovah 05-31-2017 08:28 PM

Quote:

Originally Posted by phunk (Post 3658969)
I just unpacked the kit to get ready to install it on that car here and NOW I see what you are talking out. L.O.L. what a piece. Definitely will be putting some thought into possible ways to avoid using that particular component.

It's a good thing you and Topz are putting thought into it.. It seems clear that Stillen didn't devote much.

phunk 05-31-2017 08:43 PM

Quote:

Originally Posted by Jayhovah (Post 3658974)
It's a good thing you and Topz are putting thought into it.. It seems clear that Stillen didn't devote much.

Having been in the industry a long time I can tell you that almost every forced induction kit I have ever installed was more of a "Starter Kit" than advertised. Having somewhat recently made the executive decision to not sell our CJM turbo system parts in a "complete kit", it is easy for me to relate with why it is like this.

There is really no end to it. You can just keep going forever and ever. There has to be a point where a product designer says ENOUGH and hits the release button. Each manufacturer has to decide where they want to draw that line. Sometimes you are better off getting less as the consumer, because you can use that leftover money to customize to your own preference.

When I first got started in the industry around year 2000, back then MOST F.I. kits would without a doubt blow your engine in short time without lots of improvement, especially in the fuel and tuning department. They just focused on getting you the hard parts that you need along with the BARE MINIMUM to get the car to drive down the street.


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