I bought from a manager at M2 performance a 93 TT Rx-7. For 18500 he delivered to us an Rx-7 with a brand new engine, M2 downpipe and exhaust, AST elimination kit, and underdrive pullies. One of his mechanics told us that because of these mods, the car will overheat during the summer and that we need to buy an intercooler. As far as I know, an intercooler cools down the air making it more dense allowing more air molecules per given volume to enter the engine and combust. Cooler, more dense air doesnt seem to help keep the engine cool at all. A radiator seems like a more practical solution. The mechanic seems very competent and why would he tell us to buy an intercooler unless for M2 financial gain. Please help!!!

 

Maybe he means that with the current mods, in the summer you run the risk of the charge air running to hot and causing detonation.

 

an ic will help with the detonation issues but is definitely not the answer to overheating issues. an upgraded radiator makes more sense. plus, once you get the ic and or intake you'll need to upgrade the fuel management. i would suggest getting a real temperature gauge installed and a boost gauge at the same time if you don't already have one. combine that with a new and/or upgraded radiator and turning on the fans when needed and you should be fine.

 

The IC will do a good job of keeping the car cool also. I ran the stock radiator up until just last month and never had any cooling problems with my car. 6 or so track events, even 100F+ days out there and never saw temps over 215F.

Right after install my M2 Large IC (which I sold) my car took a lot longer to warm up in the morning drive to work. Forget having the car warm up if I got right on the freeway, temps would never go past 160F if I did that.

Althoug he could be encouraging you to buy an IC since they will make more money off the sale.

Both options work, just one is more money and gives you more power.

 

Since you bought this FD from an M2 person, you should first get back in touch with them and ask for clarification about the "overheating" comment they made when you purchased the vehicle. Just tell them you are confused about what they said originally and press for some details. Ask the M2 person the same questions you asked in your first post on this thread. I just think you might be a little confused about their original comment.

 

Has anyone ever thought about making a flowchart or decision tree. Just because there is a suggested list of mods and an order to do it in on Robinette's site, doesn't mean everyone can or should do it that way. A flowchart would be something like gordon wrote...if you have this then get that next, but if you do that other thing then watch out because you could detonate, so do this other thing first.

You can sit on here for ages and not get all the info, but a flowchart could really clear things up. In fact, with all the combined knowledge here everyone could contribute.

 

There is no set way for mods... You could go wit ecu first, intake, exhaust, dp, springs, or anything else in the world next to a single....A flow chart wit all those mods would be huge and really would make things more complicated than worth.. IMHO i think that a dp and ecu should be your first upgrades. Then the realiable stuff then ur fuel system. That way you can do whatever you want and still not have to worry about can i do this without popin my engine. What is the lowest duty cycle you can run injectors and them still work right?? Like say i have 1300's or 1600's but dont need them right then.. Can i turn down the duty cycle and now have to worry about them not working right??

 

that's pretty good idea and while complicated and probably not exactly what everyone would like it would serve as a good baseline for beginners.

 

I did the downpipe, exhaust, and pullies WITH the reprogramed ECU for fuel management. The car was delivered to us with the reprogramed ECU so a lean fuel mixture is not a possibility.

 

isn't this the second time this has been brought up from a m2 deal? someone's girlfriend on here had the same thing in the last past 2 weeks.

 

It's one in the same person...boyfriend/girlfriend combo..

thread closed.... interest gone..