ok so went the econmical FI way with the vortech...
and basically want to get more power out of it or least make it less of a dyno chart car.

I want more power in the lower rpm's this whole linear power is alright for delivery in regards to smoothness. I feel like 380whp 320tq should be a lot faster than a mid/high 12sec car though.

so to the question at hand.

me and my friends have been thinkin to get something like a tial wastgate set to 9 or 10 lbs. and have the blower with a custom or at least 2.87 pulley, so it will be making more boost/power down low and then the tial kicks in bleeds it off at Xpsi and it is sustained.

I have done minimal research and found a couple 5.0's with something similar, but it works!

I am just concerned because usually we arent ever the first ppl to think of anything and since this is not widely used i am waiting to find that one fact I overlooked to make this a retarded idea.

although from what I know about cars in general I cannot see a reason for this not to work..

I mean the blower is goin to make boost regardless. the wastegate will open with Xpsi and then close when below. and the bypass valve will do its thing.

Maybe a a stock blower it will not be able to make enough power down low so that means I will buy a bigger SI or T trim.

basically looking to brainstorm with ppl on this site to get a new perspective.

SENTRY chime in !

 

What if your wastegate fails?




Stay conservative. If you want MORE power, go turbo.

 

well if any part fails then what?

cant really go off that because the wasteegate if properly installed has just as much chance of failing as any other critical part.

and if it fails that last run is going to be crazy! hopefully at the track so I can put a good time down!

 

928 Motorsports makes a BLV (boost limiter valve).

 

details.... DETAILS!!!!!!!!!!!!!!!!

DONT TEASE ME !!!!

 

that looks promising but who has the ***** to be the first g35/350z to actually do one? lol

 

nvm...

UR A FUKIN GENIUS!!!!

hahahahahahahahahahaha

 

Actually I will be putting this on my Z soon. There is a secondary benefit I see also for tuning reasons. Essentially you can use this to tune cells that you otherwise would need varrying conditions to hit on a supercharged application.

For example, using a smaller pulley on the supercharger, you could use this to see more boost at a given rpm then you would normally or you could use this to see less boost at a given rpm. Essentially you could run through any number of cells while tuning and get a very good tune for varrying boost/rpm conditions.

Obviously the main benefit would be more low end torque.

I currently see 2.5psi at 2100rpms on my Vortech but I am hoping to see upwards of 5psi at 2500rpms and a max of 10psi using this sometime this fall.

 

I'm sorry but although this was an idea of mine for development I do not have much information about it. I have seen it work on the race car though and played around with it a bit.

 

so basically thats a wastegate that you machined?

i jsut like details before I dive...

looks like a maual boost controller. but it doesnt need vaccum lines?

 

how does a wastegate work with a supercharger setup when the psi is dependent on engine rpm. a wastegate regulates the amount of exhaust flow into a turbocharger and opens up when there are enough exhaust gases to spin the turbo at a certain psi. so there is no way you could put a "wastegate" on a supercharged application? ill read up on this though i could be wrong.

 

wastgates dont care what they are regulating. the only thing that happens in one is a spring (depending on what rate you get) get compressed when X amount of psi is being applied. so when it is applied to a intercooler pipe it should just bleed anything over X-psi


say the supercharger is setup for like 14psi obviously thats a little much for a stock block, but its going to make a more power in the lower prm range since it will be spinning faster.. right?

say you get a wastegate and bleed it off at ten so you will get that power that is needed down low and just let go off the rest up top.

 

I don't know much about the above picture or setup of that car, but in the past, someone did get it working with a vortech. A couple other poeple were seriously looking into it (I think T-trim users who had possible actual need for one) and then just gave up and didn't think it was worth it in the end or thought their built engine could take the boost anyway.


here's my take:
don't bother with one with the stock blower


why?
because the Z handles the 2.87 pulley (non-revup) just fine if you get the right parts. Getting larger injectors and a walbro are going to be just as expensive if not cheaper than a custom wastegate. You'll have to retune for either route.

It's not like you can go way overboard with a crazy small pulley because you'll overspin the blower and the belt will likely slip really bad.

It's one more thing to go wrong and hurt something. You're still working the blower hard and spinning it to its max either way. If you're really worried about an extra 35 whp or so hurting the engine, then it sounds like you either need to find a better tuner and/or look into water/meth injection

a wastegate just caps off the peak psi to whatever the wastegate is set to and releases extra air/pressure
it can work with any FI application with positive boost pressure, not just turbos

 

In other words it could be compared to one that is adjustable.

Again, I don't have all the details but I'm sure they would be more than happy to give you more information if you contacted them.

 

first off. hows your car doing? havent heard/read nething in awhile...

what I am trying to eleviate is the bad numbers down low...

I was thinking an SI trim with about 14lbs bleeding of to 10 so I get that torque/hp on the bottom. and a little more up top!

right now i have the 3.12 pulley and it hits a max of 8.64psi @70 degrees.

mainly I know I need more torque. it feels sluggish until im revving the crap out of it.

I was thinking a 50shot window switched to open around 2k and close at 5k when the blower starts really doin it job.

I am always hesistant of nitrous though...

I have no goal yet just trying to get ideas

 

try looking into a shorter final drive

 

https://my350z.com/forum/forced-indu...er-414whp.html

 

noice!
that impeller works for the sc trim blower right?

 

SENTRY hows your car doin?

 

car is in the shop still. An E85 station finally opened up to the public in phoenix, so I'm trying to decide how I want to go about getting set up to work with that. My hangup is my aluminum CJM fuel rails....maybe I'll go back to the stock ones? I'm thinking maybe I should experiment with E85 on a stock engine and seeing how that works out instead of spending money on a built engine and risking it.

101 octane race gas here is now $7.99 a gallon last I checked a month ago at the station near my house, so E85 is really sounding like the way to go. And I go to central downtown phoenix almost everyday during the week