[Cnoprea]

So I'm getting of my JB4 Stage 2 (its for sale on the forum if anyone wants it) and looking to upgrade to the Bootmod3 but im not sure if i should go with stage 1 or stage 2. My main thing is it says stage 2 requires an intercooler and catless dp. I already have the catless dp from ER, but im wondering if the intercooler is really that necessary?

[rjd_F30]

Originally Posted by Cnoprea

So I'm getting of my JB4 Stage 2 (its for sale on the forum if anyone wants it) and looking to upgrade to the Bootmod3 but im not sure if i should go with stage 1 or stage 2. My main thing is it says stage 2 requires an intercooler and catless dp. I already have the catless dp from ER, but im wondering if the intercooler is really that necessary?

Aekdbrich is running Stage 2 with DP and no intercooler. He might be able to help you out

[kenand1988]

Correct me if im wrong but jb4 stage 2 also suggests you to run with an upgraded FMIC

[lukeiswright]

You can but depending on where you live you'll heat soak like crazy. Even with my JB1 I was heat soaking. If you were fine on JB4 without it then you'll be fine without it on BM3 but I would recommend a FMIC

[MacklinUSOB]

I'm only using a JB+ and on hot days I can absolutely feel the car pull timing to compensate for the intake temps. I would go as far to say that if you live in a hot climate a FMIC is a practical/viable way to make more power even on an otherwise bone stock car. They are tiny and it is very easy to ask for more performance than they can provide.

[jflow72]

We talking IAT temps? How hot is considered heat soak? Or what is a temp to aim for?

[BunkerJ]

In most places, yes, it's required. If you live in Canada and it's cold as hell every day, then sure you can go without it. Really the key part is the DP and FMIC is to keep your IATs managed. You can run stage 2, but if it gets too hot, you're gonna lose power.

[supergoat]

An emphatic yes. The factory one can't even cope with factory boost levels on hotter days.

[mike@x-ph.com]

Yes an intercooler is needed for stage 2

[ty666]

I live in Canada where temperatures are pretty low for about 9 months of the year (6 months freezing) and I'm in the same boat as the OP, I have a jb4 with a catless dp, axleback exhaust, and an intake but no fmic. can I get away without the intercooler? I drive the car about 3 days a week for short distances. I heard only stage 2 maps will clear cel codes that's why I wanna go with a stage 2.
What's the worst that could happen on warm days if the stock intercooler wasnt doing it's job efficiently? will anything bad happen to the engine / Turbo? or will the ECU detect overheating and pull timing therefore reduce power to protect them?
and if power gets reduced will the car be like in limp mode or will it feel more like in comfort when it's actually in sport?

[floridaorange]

Why risk it?

[johnung]

You need the intercooler upgrade. Luckily you can install BM3 Stage1 immediately and just flash Stage2 when you're ready

[ty666]

Originally Posted by johnung

You need the intercooler upgrade. Luckily you can install BM3 Stage1 immediately and just flash Stage2 when you're ready

Yeah but I heard stage 1 will not delete CEL code, which is no good for me.

also like i previously asked, is it true that ECU will reduce power if stock intercooler wasn't being efficient enough & running hot? If yes, then I see no risk, only downside is reduced power for those odd times. I only drive the car for about 3 days a week only when it's not raining and in winter the car is stored and we have cold weather for the biggest time of the year so I would put my money in to other mods.

[GreenF30N26]

Originally Posted by ty666

Yeah but I heard stage 1 will not delete CEL code, which is no good for me.

also like i previously asked, is it true that ECU will reduce power if stock intercooler wasn't being efficient enough & running hot? If yes, then I see no risk, only downside is reduced power for those odd times. I only drive the car for about 3 days a week only when it's not raining and in winter the car is stored and we have cold weather for the biggest time of the year so I would put my money in to other mods.

Stage 1 does have CEL delete you just have to go into map config and change cat monitor to off.

I’m assuming there is a risk of running hot on the components and the DME always have to compensate for that. I don’t have technical info to back this but there is likely a risk of premature wear if not cooled properly.

[johnung]

Originally Posted by ty666

Yeah but I heard stage 1 will not delete CEL code, which is no good for me.

also like i previously asked, is it true that ECU will reduce power if stock intercooler wasn't being efficient enough & running hot? If yes, then I see no risk, only downside is reduced power for those odd times. I only drive the car for about 3 days a week only when it's not raining and in winter the car is stored and we have cold weather for the biggest time of the year so I would put my money in to other mods.

I thought BM3 deletes CELs regardless of which Stage is being run, but I'm no expert. If your stock intercooler can't keep up, the car will go into a heat soak condition and limit power. You can feel it get weaker when you make multiple pulls in succession. Eventually it could put you into limp mode.

I'd suggest posting your question to see what the experts say. Also once you purchase BM3 you can gain access to their FaceBook page that has a lot of helpful information and helpful users. I personally would run with Stage1, if you find that it definitely clears CELs, rather than make your car's safety systems work that hard.

[Lukelar1283]

Originally Posted by Cnoprea

So I'm getting of my JB4 Stage 2 (its for sale on the forum if anyone wants it) and looking to upgrade to the Bootmod3 but im not sure if i should go with stage 1 or stage 2. My main thing is it says stage 2 requires an intercooler and catless dp. I already have the catless dp from ER, but im wondering if the intercooler is really that necessary?

I installed BM3 about 3 months ago. I did stage 2 91 and for the first month I ran with a catless DP and no FMIC. I then installed a FMIC and i feel it definitely makes it run smoother and lower temps. I would highly recommend it because I feel long term those higher temps are not gonna be a good thing only could cause more problems down the line. I was driving in about 70 degree weather in Minnesota. I would recommend spending the extra money to get a FMIC.

[mike@x-ph.com]

Originally Posted by Lukelar1283

I installed BM3 about 3 months ago. I did stage 2 91 and for the first month I ran with a catless DP and no FMIC. I then installed a FMIC and i feel it definitely makes it run smoother and lower temps. I would highly recommend it because I feel long term those higher temps are not gonna be a good thing only could cause more problems down the line. I was driving in about 70 degree weather in Minnesota. I would recommend spending the extra money to get a FMIC.

[Kingpin2001]

Originally Posted by Lukelar1283

I installed BM3 about 3 months ago. I did stage 2 91 and for the first month I ran with a catless DP and no FMIC. I then installed a FMIC and i feel it definitely makes it run smoother and lower temps. I would highly recommend it because I feel long term those higher temps are not gonna be a good thing only could cause more problems down the line. I was driving in about 70 degree weather in Minnesota. I would recommend spending the extra money to get a FMIC.

I'm also in MN and the temperatures are dropping dramatically is it fine to run a stage 2 E30 tune as of right now without a FMIC? I'm looking to get the intercooler once it's spring. Also one more question can we switch back and forth with maps?

[gameson]

Originally Posted by Kingpin2001

I'm also in MN and the temperatures are dropping dramatically is it fine to run a stage 2 E30 tune as of right now without a FMIC? I'm looking to get the intercooler once it's spring. Also one more question can we switch back and forth with maps?

i don't understand why someone can pay for a bm3 but can not pay for a fmic?

do you want to save $300 and pay $1000s in repair fee? you will soon regret you blow up your engine just to save $300 on fmic

you need to think about risk and reward. if you wanna go fast, you must budget everything (fmic, downpipe, charge pipe at minimum. to be safe, change boost pipe, and inlet pipe as well), if you can not afford bm3, downpipe, charge pipe, and fmic (this amount to low $1000s total), then just don't do it, save, and do it when you have the money

[f31s2k]

For the guys experiencing heat soak on a stock intercooler, do you know what your IAT's are at when you're experiencing heat soak?

[mike@x-ph.com]

Originally Posted by f31s2k

For the guys experiencing heat soak on a stock intercooler, do you know what your IAT's are at when you're experiencing heat soak?

There's not a particular value that indicates heat soak; generally, heat soak refers to a situation when your car's engine or components are getting excessively hot.

Please note that running hot during street driving doesn't immediately equate to diminished performance. However, consistently running hot can lead to reduced ignition timing, which in turn results in less power.

Monitor IAT, If you notice a significant increase, cross-check your ignition timing to see if your DME is reducing it. If this is the case, upgrade your intercooler.

Of course, this is a simplified explanation of the issue. lots of other factors are involved. But in my opinion, that's a great start.

[f31s2k]

Originally Posted by mike@x-ph.com

There's not a particular value that indicates heat soak; generally, heat soak refers to a situation when your car's engine or components are getting excessively hot.

Please note that running hot during street driving doesn't immediately equate to diminished performance. However, consistently running hot can lead to reduced ignition timing, which in turn results in less power.

Monitor IAT, If you notice a significant increase, cross-check your ignition timing to see if your DME is reducing it. If this is the case, upgrade your intercooler.

Of course, this is a simplified explanation of the issue. lots of other factors are involved. But in my opinion, that's a great start.

Appreciate the insight!