Spoony Posted May 31, 2008 Share Posted May 31, 2008 i have a mapecu2 and want more rpm on my engine. how can i do it? 8000 would be fine, i have harder springs Quote Link to comment Share on other sites More sharing options...
bignum Posted May 31, 2008 Share Posted May 31, 2008 And all the other stuff to go with the springs? Quote Link to comment Share on other sites More sharing options...
Spoony Posted May 31, 2008 Author Share Posted May 31, 2008 will be fine, just need to know how to change it Quote Link to comment Share on other sites More sharing options...
Spoony Posted June 8, 2008 Author Share Posted June 8, 2008 ?? Quote Link to comment Share on other sites More sharing options...
SilverSoop Posted June 8, 2008 Share Posted June 8, 2008 ?? If you want more revs, have you considered upgraded Cams?? Quote Link to comment Share on other sites More sharing options...
Jake Posted June 8, 2008 Share Posted June 8, 2008 If you want more revs, have you considered upgraded Cams??I think you've misunderstood the question. Quote Link to comment Share on other sites More sharing options...
SilverSoop Posted June 8, 2008 Share Posted June 8, 2008 I think you've misunderstood the question. Yeh i think i have...Doh! Quote Link to comment Share on other sites More sharing options...
Spoony Posted June 9, 2008 Author Share Posted June 9, 2008 guys please! i just want to know how i can get a higher rev limiter without an aem or haltec, i just have an mapecu and dont want to change this. everything else is done to take the 8200rpm, just need the electronic to let me Quote Link to comment Share on other sites More sharing options...
paul mac Posted June 9, 2008 Share Posted June 9, 2008 i think the problem is the map ecu isnt that common over here, have you tried the US forum i'm sure it must have come up over there Quote Link to comment Share on other sites More sharing options...
Spoony Posted June 9, 2008 Author Share Posted June 9, 2008 its the same like with an greddy ultimate or blue. the problem is the stock ecu, not the piggiback Quote Link to comment Share on other sites More sharing options...
Scott Posted June 9, 2008 Share Posted June 9, 2008 Mines ECU? Quote Link to comment Share on other sites More sharing options...
JustGav Posted June 9, 2008 Share Posted June 9, 2008 Mines ECU? No WAY is that a good idea... nobody here is actually SURE what the mines ECU does. So it may lift the rev limit and kill the fueling.. who knows..especially with a piggy back like the MAP2 on the end as well. Quote Link to comment Share on other sites More sharing options...
Scott Posted June 9, 2008 Share Posted June 9, 2008 Surely if it was mapped properly it would be fine? Yes the Mines ECU takes the limit to 8k rpm but the Map would control the fueling would it not? Quote Link to comment Share on other sites More sharing options...
marc_p Posted June 10, 2008 Share Posted June 10, 2008 What about a Bee-r rev limiter, doesn't that allow you to alter the limit? but will cause some bangs and flames and destroy the cat. Quote Link to comment Share on other sites More sharing options...
JustGav Posted June 10, 2008 Share Posted June 10, 2008 Surely if it was mapped properly it would be fine? Yes the Mines ECU takes the limit to 8k rpm but the Map would control the fueling would it not? The problem is, nobody fully understands what the mines unit does. The mines ECU will still have some control over the fueling, so you are effectively using the MAP to de-tune the mines and then take the rev limit higher, very messy way of doing it personally... Shouldn't really use an unknown quantity in any solution. The MAP unit is also a signal fudger. What about a Bee-r rev limiter, doesn't that allow you to alter the limit? but will cause some bangs and flames and destroy the cat. It allows you to hold the limit lower, not raise it... The stock ECU will still take the rev limit and hold it.. Look at the bee unit, it doesn't seem to have enough wires to adequately control the ignition or the fuelling depending on how it does.... In fact the whole wording of it just looks scary... Note: We would recommend the fitment of a Cat. Replacement pipe when fitting this item if not already fitted to the vehicle otherwise the catalyser may become damaged over time when the device is active. A cat replacement pipe will also allow flames to become more visible from the exhaust when the device is active. See our exhausts section for these. Some addional wiring may be required if using in conjunction with an aftermarket ECU. Sorry, but the whole thing looks as though it has been aimed at the flame spitting element without much regard to what is actually done to the engine..... Quote Link to comment Share on other sites More sharing options...
bondango Posted June 10, 2008 Share Posted June 10, 2008 Rev limit is built into the Stock Ecu firmware so to speak, no piggy back system (map ecu, emanage, safc, AEM FIC) can raise the limit, only impose a lower limit. The only way to get a raised rev limit above stock is A. Standalone ECU B. Modified Stock ECU from the likes of MINES, SARD etc etc Only useful if your Jspec, and as said most are unknown quanities but can be piggybacked C. TechTOM Daughter board from Reg Reimer - big money There was a guy a few years ago messing with Crytals on the Circuit board to lower clock speeds to raise rev limit, but dont know how far he ever got - think he cracked the mr2 ecu though The Bee-R is used as a 2 step limiter, No need for it as its built into the MapEcu, PM me if you would like details on how to implement the 2step in Mapcal Quote Link to comment Share on other sites More sharing options...
Spoony Posted June 10, 2008 Author Share Posted June 10, 2008 ok thanks so i only can buy an aem or have a happy life with my mapecu2 and 6900rpm limit Quote Link to comment Share on other sites More sharing options...
Wez Posted June 10, 2008 Share Posted June 10, 2008 Surely if you have spent the money needed to build a reliable 8200rpm engine then a full blown replacement ECU should be top of your list anyway. Quote Link to comment Share on other sites More sharing options...
Spoony Posted June 10, 2008 Author Share Posted June 10, 2008 its just some crower Springs, titanium retainers and two new cams Quote Link to comment Share on other sites More sharing options...
bignum Posted June 10, 2008 Share Posted June 10, 2008 Quote Link to comment Share on other sites More sharing options...
JustGav Posted June 10, 2008 Share Posted June 10, 2008 its just some crower Springs, titanium retainers and two new cams What about the bottom end??? remember that has a LOT more weight and stresses than the top. IMHO the gains at the top end of the rev range are rarely worth the outlay and risk... especially if you aren't running a standalone. The stock ecu will probably be out of resolution at that point (That is an assumption btw) Quote Link to comment Share on other sites More sharing options...
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