Intercooler Upgrade

[eyedee]

I\'m pretty new to turbo\'s cars, the RX-7 being my first and I\'m after more power.  I have already done the safe mods of Induction kit and Exhaust box, now I\'m looking for more power whilst still keeping the car drivable and without a huge bill.  So I guess the obvious next stage is to get a bigger intercooler, new breather hoses, uprated ECU, boost controller and guages, plus de-cat and get rid of the water pump as I wana louder exhaust note.  
What Intercoolers can you guy recommend, keeping in mind I\'m hoping to spend as little as possible.  I spose it would be cheaper to get an increased efficiency replacement intercooler as it doesnt involve moving bits round the engine bay, but I think a nice big intercooler would look wicked so I\'m up for that!
Also, whats the max boost setting you\'d recommend running with the above setup.
cheers all!  :cool

[Donato]

I take it you mean remove the air pump not the water pump.. Otherwise your mod list will have to include a rebuild

I have just done my ecu
put in a fmic
moved the battery to the boot
moved the rad to accomodate intercooler
and removed the airpump
new pipes etc..
decat and rear box

Believe me it wasn\'t cheap, and i fitted it all myself. By the time you add the cost of all the little bits like new coolant pipes etc it does all mount up.

It all depends on whether you can do the work yourself or if you need to get someone to do it for you? This can make a big difference to the final bill...

If your going to go ahead with it add a new fuel filter to that list. (a complete bugger to change but if you had seen the colour of the fuel that came out of mine you would know it was necessary.)

And depending on the size of intercooler you may have to look at uprated pump and injectors depending on what kind of boost you are looking for.

Cheers

Donato

[eyedee]

Air Pump, yeah.  :o     lol!

Hi Donato.  I\'m able to do most if not all the work myself, and I\'ve already replced the fuel filter (and yep, it def did need changing!)

Can I ask what intercooler you went for?  Im after something that will provide the maximum boost power gains without having to upgrade the injectors yet.  But still leaves me the option of upgrading the unjectors when I get my engine overhaul done (next year sometime hopefully).  I\'m not sure about the fuel pump - another thing I know very little about!  :confused:

cheers

[Donato]

Hi mate

I have fitted a Forge front mount.

I uprated the fuel pump as i also uprated my secondary injectors. If your not uprating injectors then you might not need the pump (check that with someone who knows!)

The best thing to do is speak to someone like Pip or Carl about intercoolers and the fuel requirements, i aint no expert!

Certainly with the intercooler i have extra fueling was required. (also because i changed the turbo\'s to non sequential one\'s )

Here\'s a picture of the forge intercooler..

Cheers

Donato

[Donato]

And here is it all done with the expensive bits stuck in there! (no need to show you this one but im like a kid with a new toy with my engine bay! )

Good luck with your plans

[Fish]

Donato, nice install.

Fish

[eyedee]

That is really nicely done!  :cool   What did you do with your radiator mate?  Please excuse if thats a real dumb question!  Think I\'ll give Pip a call about the fuel pump!  Do you attend any of the monthly REX meets by the way?
cheers

[Mark C]

Ok so where exactly is the fuel filter as i may consider doing mine. Don\'t mind if it\'s just fiddley or an arse to do as long as it doesn\'t mean stripping down half the car to get at it.

Sorry for going a bit off topic.

Mark

[Fish]

Pig of a job. The filter is up on the rear axel.

Fish

[Mark C]

Originally posted by Fish
Pig of a job. The filter is up on the rear axel.

Fish

REAR AXEL your having a laff, seriously?? might have taken a while to find it in the engine bay then :rollin , oh while i think will it piss petrol all over the place if i do have ago?

Thanks
Mark

[yonner]

it wont piss it but it will dribble a bit watch ur eyes

dan is that u runnign now m8?

[iaint]

Not seen it mentioned in this thread yet but if you\'re doing the intercooler, induction and de-catting you should also uprate the fueling system: fuel pump, fuel pressure regulator and bigger secondary injectors.

It\'s not a good idea to run the injectors at > 90% duty and with the mods you\'re proposing it\'s likely to max them out.

It\'s my understanding that one shouldn\'t put injectors in that are too big as at low duty cycle they won\'t atomise the fuel as well as in a sensible range.

I\'m in the process of uprating the intercooler on mine and will be sourcing 1200s for the secondary but leaving the 550 primaries in place to preserve mpg a tad.  You wouldn\'t need anythng bigger for the secondaries unless you go single turbo.

I\'d suggest the De-cat, ecu and mapping for 1st power upgrades as it\'s a good baseis for the next stage and won\'t break the bank.

Iain

[<--rYaN-->]

I\'m in the process of ordering a rather large V-mount intercooler/radiator kit, will relocate battery to storage bins for better weight distribution also, just need to get my fueling parts sorted and it will be spot on :cool

[scooby_si]

where\'s that from then rotary extreme?
Si

[<--rYaN-->]

Thats the one! Not heard a bad thing about them (yet - touch wood)