I'm putting an LS1 in my 88 RX7. My question is about getting the right PCM, the mods I'm planning are LS6 intake, 243 ported heads, F13 cam, and Flowtech LT's. I would need to tune any pcm to my engine, so is there any advantage for me to get a howell pcm with no egr/vats/rear o2 for $200 and then tuning it. opposed to getting a stock pcm and tuning it? thanks for any insight.

 

Ok well I figure I should just use a stock one and go from there. but feel free to chime in

 

if it's 200 bux for the tuning AND PCM then that's not a bad price, but the PCM alone can be had for less... turning off codes and such is easy to do w/any of the available tuning suites.

Keep in mind that 98 PCMs are the oddball... if possible you'll want to go with a 99+ LSX PCM

The 98s are a popular choice for hybrid's like this since several companies offer premade wiring harnesses, but if you can get a 99+ PCM and a 99+ wiring harness, your tuning options increase significantly.

 

great thanks. I can use a 99+ pcm on a 98 engine right?

 

^^^ Yes, just need to change a few sensors... temp sensor is the only one that jumps to mind... and Knock sensors I think

there are several tuning options out there for 98s so it's not like you can't tune using a 98 PCM.... but the 98 tuning options currently are much more limited (since they were a one off year, hard to justify custom OS's for them)

 

what are some good options for tuning a 98 PCM?

 

Lots of options out there all the major full tuning suites support 98s now, just custom OS's aren't quite out yet for them yet (due to limited # of cars)

HP Tuners supports 98s as well as EFI