<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Silverbeast &raquo;</TD></TR><TR><TD CLASS="quote">
Meguiar's did something similar on the ITR, but it was completley built and a LOT of hours on the dyno.
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that motor was not completly built according to the article

the way this car was done is not up to me... I built the turbo setup that is all
What he does is not up to me

 

Does nobody else get the point? Whats the deal with all the hating. He said its a project car... a experiment. Last time I checked that is how people learn about things...

 

If this site didnt have people with opinions then it would be a bland site, correct? That's why people can agree, disagree, nutride, bangwagon, etc. on here, it's a FORUM.

I think the manifold looks nice, the idea is one that I think is farfetched.

It's not "hating", people on other gay sites do that ****. People learn by mistakes, experiments.

 

tHIS oNE -- Yo man you still have yet to answer my question.

Could you make a manifold like that for me??

If so then how much?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Silverbeast &raquo;</TD></TR><TR><TD CLASS="quote">If this site didnt have people with opinions then it would be a bland site, correct? That's why people can agree, disagree, nutride, bangwagon, etc. on here, it's a FORUM.

I think the manifold looks nice, the idea is one that I think is farfetched.

It's not "hating", people on other gay sites do that ****. People learn by mistakes, experiments.
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I agree

 

I like the concept....its cool. But I think it would suit better to a built motor that could run more boost.

And if I'm not mistaken...you only gonna make 6 psi if you have a 5 psi spring in the wastegate. They just don't add to eachother.

 

Meh...i definetly give you props. There are some of us in this world that have more fun building a project that is unique.

Definetly get the thing on a dyno!

I wanna see a graph!

 

This forum can be informative ..................but too much hating!! Nuff props on your accomplishmet my brotha . That's the way pioneers get started.

For everyone's info, HKS make a twin charged kit for the MR2 a coulpe of years ago. It was for the supercharged 1st gen MR2. I've personally seen this car rip a TT 2JZ Supra a new @$$ from a standstill and from a roll. This red MR2 still runs around in Brooklyn!

Matter of fact this car belongs to my friend Roger. Heres the article:

Twin Charged Beast

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScreaminTeg &raquo;</TD></TR><TR><TD CLASS="quote">
Cuz, if you have a twin turbo [enter vehicle name here] and each turbo it gated at 7 psi. 7+7 does not = 14. It will still only push 7 psi of air. But with 2 there is more CFM being pushed. </TD></TR></TABLE>

It's the difference between "dual" compressors and "sequential" compressors. If you were to do a Supra style twin turbo setup, then 7+7 = 7, but if the turbos are run in sequence, then 7+7=14 (RX-7 TT for example).

This is a sequential setup. The charge from the turbo goes into the blower, etc. The blower doesn't "know" the air is already at 7 psi, but the bypass valve will. Unless something is done about that it'll just regulate boost to whatever it's set at.

I read about a Group B rally car that had a setup like this back in the 80's. Engine management was a nightmare. It's a neat idea, but I don't think any of us possess the $$$ to make it reliable. Big for experimenting with it though!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fsp31 &raquo;</TD></TR><TR><TD CLASS="quote">

It's the difference between "dual" compressors and "sequential" compressors. If you were to do a Supra style twin turbo setup, then 7+7 = 7, but if the turbos are run in sequence, then 7+7=14 (RX-7 TT for example).

This is a sequential setup. The charge from the turbo goes into the blower, etc. The blower doesn't "know" the air is already at 7 psi, but the bypass valve will. Unless something is done about that it'll just regulate boost to whatever it's set at.

I read about a Group B rally car that had a setup like this back in the 80's. Engine management was a nightmare. It's a neat idea, but I don't think any of us possess the $$$ to make it reliable. Big for experimenting with it though!</TD></TR></TABLE>

Yeah, I seem to remember seeing something like this in a tech article. They were saying if you run two turbochargers in sequence that you have to think of them as pressure compounding devices. Let's say the first turbo raises the atomspheric air by 1.5 bar [just for mathematics sake]. This air @ 1.5 bar is fed into the second turbo, which raises the inlet pressure [which is 1.5 bar] by another 1.5 bar. I can't remember if it adds another 1.5 bar of pressure of if it multiplies the pressure by 1.5 bar, but it definately works way different than a typical TT setup...

 

Turbo compounding is uses staged turbos, and it's seen in racing boat setups. They will spin up at nearly the same time, unlike a sequential setup where only one will work, then the other comes on line. This is actually where the term intercooler was first used since they were placed between turbo stages.

 

nice setup and all, but the only thing i see a problem with is the TINY TINY SMIC...you need to keep that intake charge as cool as possible for the SC. Good luck with your setup and hope to see more about it!

mike

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fsp31 &raquo;</TD></TR><TR><TD CLASS="quote">


I read about a Group B rally car that had a setup like this back in the 80's. Engine management was a nightmare. It's a neat idea, but I don't think any of us possess the $$$ to make it reliable. Big for experimenting with it though!</TD></TR></TABLE>

alot of the Group B cars had this setup back inthe day, some even triple charged with 2 turbos and one SC.
The engine management wasnt the hard part, it was alot of things...
those cars were insane....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clean90Si &raquo;</TD></TR><TR><TD CLASS="quote">

For everyone's info, HKS make a twin charged kit for the MR2 a coulpe of years ago. It was for the supercharged 1st gen MR2. I've personally seen this car rip a TT 2JZ Supra a new @$$ from a standstill and from a roll. This red MR2 still runs around in Brooklyn!


Twin Charged Beast</TD></TR></TABLE>

that was the same basic setup used on the Mequiers car

 

get some numbers on that beast

 

exactly , with something like this that has only been done a couple times and probably never a on non vtec motor you need a starting point, props guys

 

thats pimp! I want to see the power curve on this thing!

 

I'm not sure if this info is correct. The boost produced by a setup like this will be phenominal. It's not as simple as just adding the two pressures, either, because the supercharger getting fed air at say, 1.5bar will exponentially increase that. It will be insane. Now a good quesiton in-- your going to be using the turbo's nipple for a pressure source for it's wastegate, right!?

~Matt

 

interesting setup only the second time i've ever seen a setup like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Johnyquest &raquo;</TD></TR><TR><TD CLASS="quote"> Now a good quesiton in-- your going to be using the turbo's nipple for a pressure source for it's wastegate, right!?

~Matt</TD></TR></TABLE>

now that you mention it, i think we are going to use a MAP source off of the SC to regulate the turbo as well with a 9lbs spring

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THE_HX &raquo;</TD></TR><TR><TD CLASS="quote">interesting setup only the second time i've ever seen a setup like that. </TD></TR></TABLE>

Would the first be the infamous, Type R from like 00?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tHIS oNE &raquo;</TD></TR><TR><TD CLASS="quote">
alot of the Group B cars had this setup back inthe day, some even triple charged with 2 turbos and one SC.
The engine management wasnt the hard part, it was alot of things...
those cars were insane.... </TD></TR></TABLE>

I read that the Lancia S4 was the only turbo/supercharged group b car ever campaigned. It was crazy fast. They actually did some tarmac testing with that car on the F1 track at Monza back in 85 or so. Their lap times would have put them 5th on the F1 starting grid that year! That is just crazy for a "door slammer".

Heh, maybe the turbo/supercharger is the holy grail.

 

I like the idea. However it would seem to me that the SC would just be a restriction in the way of the air the turbo is forcing into the engine.

I've seen similar projects like this on V8s. On those applications there were two paths for compressed air to enter the throttle body.

On this setup:

1. the SC has to suck air past the turbo.
2. the turbo has to force air past the SC.

I don't see how this could "twin charger" could be beneficial in this particular case. The compressors aren't working together. They are just getting in each others way.

Comments please?

 

Wont the super charger restrict the boost that the turbo is pushing....because the boost from the turbo will go in to the super charger. I would just think that the super charger would kinda cancel out the boos from the turbo but i could be wrong!!! Looks pretty cool though!!!

 

for trying smething different to see how it works...

getting more advanced fuel managment would go a long way on this setup. let us know how it all turns out. get some video too!