To chip or not to chip? That is the question...

[mr.]

Hello R3V, Newbie here

Looking to get some insight on a few questions I had.

Later this year I'll be doing some maintenance on my M20 (timing belt, thermostat, etc.) While I'm in there, I figured I might as well do some freshening up and throw in a new 02 Sensor, rebuilt AFM by BavRest, and rebuilt stock 14lb injectors by CATuned. Going to be picking up a KAMotors CAI with a headlight duct and a better flowing exhaust (most likely an Ireland Engineering one). Aside from that, my engine will remain completely stock (for now).

I've been debating picking up a MarkD 91 Octane chip for 14lb injectors, my question is; would I feel any benefits in running a chip with the setup I listed above? Or should I just go ahead and opt for rebuilt 17 or 19lb injectors with Mark's Chip, also throw in a rebuilt M30 AFM.

My apologies in advance if I come across as ignorant or as a newb. Not the most informed in the engine department. But I figured this is what R3V is for.

Again, thanks in advance!

[digger]

91 chip MD or squid, 14.5lb inj and call it a day

[mr.]

91 chip MD or squid, 14lb inj and call it a day

Leaning towards a SSSQUID but those require 17lb injectors I believe

[Kershaw]

That's probably a typo, stock are 14lbs, so I'm sure he meant 17lb injectors.

[mr.]

That's probably a typo, stock are 14lbs, so I'm sure he meant 17lb injectors.

Gotcha, figured. Will probably end up doing rebuilt M50 17lb injectors and a SQUID Chip

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[digger]

There is a 14.5lb option that's what stock are rated at afaik

[jeffnhiscars]

Jesse (SSSquid) will match your chip to whichever injectors you use and I believe his website lets you spec that. He told me the stock chip will manage 17s although we installed 19s and a chip when we met up and he street tuned my car.

It doesn't get any better for service and support

[mr.]

Jesse (SSSquid) will match your chip to whichever injectors you use and I believe his website lets you spec that. He told me the stock chip will manage 17s although we installed 19s and a chip when we met up and he street tuned my car.

It doesn't get any better for service and support

Awesome, thanks for sharing. I'll give him an email about it and see what would work best.

Still deciding between 14lb or 17lb, would the M20 really benefit from the added fuel with an "off the shelf tune"

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[digger]

would the M20 really benefit from the added fuel with an "off the shelf tune"

no, plus M50 injectors arent 17lb at the 3b youre going to run in an E30. they are 17lb at something like 3.5b

[Vincent Brick]

Is it true that a chip and injectors is only good for ~5whp max over stock?

My apologies for hijacking the newb thread with a related newb question. :)

[digger]

No that's not true, you dont gain huge amount peak to peak numbers on bone stock but with mods you can do a lot better than that with chip and tune

[mr.]

No that's not true, you dont gain huge amount peak to peak numbers on bone stock but with mods you can do a lot better than that with chip and tune

And in my case, the only mods being; intake, and exhaust. The chip of course too

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[Vincent Brick]

I'm just trying to get a little more power from my M20 and stay California legal, but without spending $1500+ on a head, cam, etc.. The few experienced E30 guys and EMS tuners I know told me not to bother with a chip, that its 5whp and not worth anyones's time. I'm just really disappointed with the M20's performance and by the lack of bolt-on stuff I can do to this car, to the point I am considering moving on very soon. I want something considerably quicker.

Again, not trying to hijack, but I think we are on a very similar, though probably previously-discussed search for current info.

[mr.]

I'm just trying to get a little more power from my M20 and stay California legal, but without spending $1500+ on a head, cam, etc.. The few experienced E30 guys and EMS tuners I know told me not to bother with a chip, that its 5whp and not worth anyones's time. I'm just really disappointed with the M20's performance and by the lack of bolt-on stuff I can do to this car, to the point I am considering moving on very soon. I want something considerably quicker.

Again, not trying to hijack, but I think we are on a very similar, though probably previously-discussed search for current info.

No worries, but you're right. Seems you can't get too much out of this motor without going forced induction. I don't mind the power, it's my daily so I think the power is adequate. Just wanted to liven it up a bit and get it to breathe better.

Good luck with your build however, your car is your daily?

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[digger]

the reality is that looking at the peak to peak whp number is pretty meaningless when making an assessment for a chip there is alot more to how it drives than a single number. You aren't going to come close to the gains possible on the modern turbo engines from a simple tune