100 Cel cat question.
#2
IMO 100 cel cats are the only worthwhile exhaust-based power upgrade you can do to a 993 - they are 400 cell as standard and pretty restrictive.
Also Colin Belton from 9M recommends it - and whatever he says I listen to.
Extra power depends on whether you get it remapped afterwards - if so then you could see over 25bhp and equivalent torque if remapped properly.... not sure what gains are to be made without a remap, anyone done it?
Also Colin Belton from 9M recommends it - and whatever he says I listen to.
Extra power depends on whether you get it remapped afterwards - if so then you could see over 25bhp and equivalent torque if remapped properly.... not sure what gains are to be made without a remap, anyone done it?
#3
Rennlist Member
Yes and no you don't get it all unless you do a re-map. There are some gains but the remap is supposed to optimise where the current engine mapping is coping. Having said that it seems to be coping quite well! ;-)
The engine is noticeably free-er revving comnpared to before and burbles and pops when you lift off, especially if it is hot. I love the noise!
The Cargraphic set that I posted about last week (German ebay item) went for about £520 which is still pretty good compared to their new price. :-(
Cheers,
David
The engine is noticeably free-er revving comnpared to before and burbles and pops when you lift off, especially if it is hot. I love the noise!
The Cargraphic set that I posted about last week (German ebay item) went for about £520 which is still pretty good compared to their new price. :-(
Cheers,
David
#4
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Is a remap the same as a chip, or is it something that needs to be done live on a dyno. If the latter is true, is there someone in the Atlanta area that con do this?
#6
Rennlist Member
Typically, my understanding is that a remap can be live (done whilst the car is on a rolling road) or not-live (done, based upon pre-determined optimisation of the standard mapping). Thus a live remap is hopefully optimising further than a non-live one as it doesn't have to be a one size fits all and can reflect that you may have changed an exhaust, etc, etc. A chip would theoretically be a non-live remapped chip that you swapped for your own chip. If you check some of the UK sites they explain this better than I probably am.
Based upon a long discussion string a while back there did not seem to be much live re-mapping going on over the pond where as it is quite common here.
Cheers,
David
Based upon a long discussion string a while back there did not seem to be much live re-mapping going on over the pond where as it is quite common here.
Cheers,
David
#7
Rennlist Member
Re-mapping would require an ECU other than a '96 too.
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#8
Three Wheelin'
Originally Posted by SwayBar
Re-mapping would require an ECU other than a '96 too.
#9
Rennlist Member
I would love to change out my cat for a 100-cell type. However, I'm over here in California and SMOG shops get all over us if there isn't a CARB number on these things.
Which 100-cell cat can I put on my 993 and still keep in street legal in California?
Which 100-cell cat can I put on my 993 and still keep in street legal in California?
#10
Rennlist Member
I do not recommend you use 100 cel catalyst's. We have seen many cars with check engine lights because the OBD-2 system does not like the 100 cel catalytic convertors efficency or actually the lack of it. I know they are the best for performance but be careful on this one.
#11
Rennlist Member
Originally Posted by TCallas
I do not recommend you use 100 cel catalyst's. We have seen many cars with check engine lights because the OBD-2 system does not like the 100 cel catalytic convertors efficency or actually the lack of it. I know they are the best for performance but be careful on this one.
#12
Three Wheelin'
Originally Posted by TCallas
I do not recommend you use 100 cel catalyst's. We have seen many cars with check engine lights because the OBD-2 system does not like the 100 cel catalytic convertors efficency or actually the lack of it. I know they are the best for performance but be careful on this one.
#14
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Originally Posted by Caveman
I guess that makes OBD1 cars very lucky! ;-)
I do so love that pop and burble when you lift.
Marc