Modified supra intake manifold

[stevecordiner]

Lol ... note to self, fit spark plugs before manifold and chargecooler

Well, it'll be interesting to see what gains it gives

Steve

How are you going to get the charge cooler to mate up with a centre fee manifold.

Ed

The centrefeed manifold will work with a greddy IC pipe, which in turn works with the stock TB. Therefore the RMR manifold's throttle body should be in a similar place to the stock one. Its the T67 turbo kit on the other side that might be an issue, but I dont see why the intake pipe to the chargecooler cant be cut, rotated and rewelded to take up some of the angle if necessary.

Fonzy, you bought an EMS for that car yet

[Fonzy]

im gonna be the first muppet to try the link! wish me luck, im gonna run it in very very very slow so if i dont have confidence in the tuning ability i am prepared to change it.

[stevecordiner]

Daft question but what are you using for base maps? Thor are mapping the LINK these days, maybe they can advise you or something.

Goodluck though!

[TBDevelopments]

I really don't think it matters which way the feed for the plenum chamber is, i've found when researching this subject (when i was thinking of making my own) most of the changes that effect the performance of the intake manifold is the area and volume of the plenum chamber. Also the length and volume of the runners. If a front feed and side feed all have the same design specs apart from where they feed from you'll probably find they are the same. As long as the plenum is designed properly.

Anyway anyone who designes these should have extensive flow test on there manifold so i'm sure if you asked them they could show you what the individual runners flow.

Tim
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[Fonzy]

yeah cheers steve, i plan to get i mapped by a local guy who maps just about everything, just to run it in, then after 1k im gonna take it to thor for a propper tune!

[stevecordiner]

Anyway anyone who designes these should have extensive flow test on there manifold so i'm sure if you asked them they could show you what the individual runners flow.

Tim
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I agree, I went for the RMR due to proven results on MR2's. Although its still a budget choice compared to the likes of Chrisks stuff.


Good stuff Fonz, hope it all works out ! Keep me posted!

[Fonzy]

will do bud.

[TBDevelopments]

great choice steve.

The main factor in the intake design anyway is to make sure all intake runner are getting the same flow, hopefully avoiding the #3 leaning problem like in the original design.

The bigger flow is just an additional bonus in my opinion, the only downside is if you have to much flow potential because of to large a plenum and runners on an intake design you will lose intake velocity and start to effect your low down torque.

Tim
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[stevecordiner]

I was thinking about the potential torque implications, however I'm not sure what the result will be since the ST205 CC is going on.

Since I'm fitting the CC between the turbo and the TB, perhaps this will compensate a bit for the larger plenum as the distance for the air to travel is shorter - compared to say having a side mount IC.

Lol ... either way a T67 kit isnt exactly low down torque friendly I assume everything is going to kick off between 4 and 5k with my setup

[TBDevelopments]

Yeah good point.

Should be a prietty big kick when it comes in at 4.5-5k lol

I'm messing about with the same kind of idea on my 200sx run about. I've designed a barrel type chargecooler to mount up front with only around 8 inches of intercooler piping instead of the normal 7ft. Also running a ball bearing turbo and very free flowing exhaust system. Depending on the results from this i might try a similar setup on the 3sgte.

Tim
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[stevecordiner]

Yeah, I've seen those barrel type CC's but have never been sure how good they are. They all look kind of small

[Fonzy]

are those the funy charge cooler things being sold on ebay occassionally?

[TBDevelopments]

the type i'm using has a core 6inch in diamter and 10inchs long. Flow charts show it will effectivly cool 920 CFM. I've rigged up an air intake temp gauge to give me an idea of how well its working.

I'm going to be using my own kit though, i've got a big water tank and i'm using the pre rad from the air con, which is the same size as the normal engine rad. The air con rad is around 8 times the size of the rad they wanted me to use with this chargecooler.

Its going to be over kill as i'm only running 300bhp out of it, but i just want to test the theory. Even if its not much better than a front mount, i've paid less that a FMIC and got a lot less IC piping.

The intercoolers are made by a company called PWR in the states. I've been talking with them directly, very rarely use ebay anymore. Had to many bad experiences, plus anything for my cars i just put through my business.

Tim
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[Fonzy]

did u say your gonna use the air con rad for your charge cooler?????? i might be way of the mark here but that is not desighned for water matey! will it work efficiently??????????????

[TBDevelopments]

End of the day its only a heat exchanger.

There was some guy using the standard mr2 side IC for his chargecooler rad. Thats not designed for water either.

I'm sure i'll find out. Might see if i can get an old ford RS Turbo Rad in there instead, its thickers as well and i have 2 laying about the shed from my old car.

Tim
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[Fonzy]

i really hope it works well as this has been discussed many times and decided against it because of the dicussed theories and complications, as you say, what it needs is someone just to do it and find out, good luck bud, pop the results up here im waiting already! when will it be done???

[JJ]

There was some guy using the standard mr2 side IC for his chargecooler rad. Thats not designed for water either.

That would be me !

I was going to use the air con, but I like the creature comforts in the summer.... black leather is damn hot in the summer I might add !

[Fonzy]

n e thing to report then JJ ?

[stevecordiner]

I was going to use the air con, but I like the creature comforts in the summer.... black leather is damn hot in the summer I might add !

Hehe ... I thought the leather trousered hasslehoff look was out these days

[JJ]

n e thing to report then JJ ?

No good for the heat of the summer whalloping it @ 1.4 bar for 15 minutes... gets too hot !! Ambient @ 25 - 29 degrees C's

Having said that, there are improvements - include more water circulating - I have 5 litres which isn't much, but my setup is a neat package - I will enlargen the capacity to ciculate quite a considerable amount of water.. and it won't be an issue anymore.

It is effective at pulling the high charge temps from the turbo... as per steve C's other thread... calculated 100+ degree celcius reduction in temperature in to temperature out of the unit... no air to air can match that.

Basically the turbos crap and generates too much heat. To counter this, a front mount rad is just the ticket .. side mount is good for those that whallop the car every so often / dragway applications, but continuous use around the track... needs a front mount or a needs to a mechanism to generate as much air flow as possible through the side vent.

Again, couple of factors involved - amount of coolant circulating, duty of pump circulating ?? its like having 5 litres of coolant to cool the engine - its not gonna happen for continuous use, but start the engine, run it for 15 mins intervals, and it will be able to handle it.