Will I get any power by buying and tuning a chipped P28 ECU for my Accord CG8 (F18B2)
Hi all,
can I expect any hp increase in getting this chipped P28 ECU on a stock engine: Chipped OBD1 P28 VTEC ECU with Custom Basemap Chip Package?
The car is stock, except for a cold air filter, decat and modified exhaust. The plan is to turbo the car in a couple of months when I save some more cash on the side, but would love to pick up this chipped ECU right now if it will give me some more power on a stock engine. I asked around and a friend said that the F-Series engines are factory made really good that chipping/tuning would not increase the HP at all almost, then another friend that says it can get me some decent power...
The engine is F18B2 which I'm sure most of you are unfamiliar with but it's a european SOHC Accord F-series really similar to F23A or such.. just 1.8 liter.
Seen couple of turbo-ed F18B2s with chipped P28 ECU so this is the direction I'm aiming towards.
can I expect any hp increase in getting this chipped P28 ECU on a stock engine: Chipped OBD1 P28 VTEC ECU with Custom Basemap Chip Package?
The car is stock, except for a cold air filter, decat and modified exhaust. The plan is to turbo the car in a couple of months when I save some more cash on the side, but would love to pick up this chipped ECU right now if it will give me some more power on a stock engine. I asked around and a friend said that the F-Series engines are factory made really good that chipping/tuning would not increase the HP at all almost, then another friend that says it can get me some decent power...
The engine is F18B2 which I'm sure most of you are unfamiliar with but it's a european SOHC Accord F-series really similar to F23A or such.. just 1.8 liter.
Seen couple of turbo-ed F18B2s with chipped P28 ECU so this is the direction I'm aiming towards.
I would be shocked if you could actually find a F18B2 base map that could be burned to a chip for a chipped P28... you are going to need a proper tuning solution like a Hondata S300.
I have contacted them and told them the car and engine I have, they said it should not be a problem to create a base map for it just to leave all the engine info before making an order... there is a Hondata option as well a bit more expensive, the chip I linked goes through CROME tuning.
Is the extra money for Hondata S300 worth it?
Is the extra money for Hondata S300 worth it?
Ok, I'll make sure to get Hondata then... so a tune on a stock engine - will I get any significant power to make my ride more fun until turbo? Or will it not be a big diff in power and rather wait for tubro kit + hondata all at once?
The Hondata S300 will allow you to make MAXIMUM power with the engine set-up that you have... the burned chip/basemap will be "Close to Adequate" at best... and likely average instead. I can't tell you how much different in HP this is... but do you want "Perfect" or "Just Alright" ???
Hondata and HTS will achieve the same thing. Get with the new tech.
Personally Hondata is a waste of money. If you are going to drop $4-600 get a stand alone like a Haltech!
'Getting' basemaps are unnecessary especially off the internet. Find a tuner or learn to tune yourself. If you have a wideband in your car and you were competent enough to assemble the car you can learn to adjust air fuel ratio at the least. Pretty much any honda ignition maps will run any honda motor just fine to get it started.
Its not that hard like everyone makes it seem!
Personally Hondata is a waste of money. If you are going to drop $4-600 get a stand alone like a Haltech!
'Getting' basemaps are unnecessary especially off the internet. Find a tuner or learn to tune yourself. If you have a wideband in your car and you were competent enough to assemble the car you can learn to adjust air fuel ratio at the least. Pretty much any honda ignition maps will run any honda motor just fine to get it started.
Its not that hard like everyone makes it seem!
Trending Topics
The Hondata S300 will allow you to make MAXIMUM power with the engine set-up that you have... the burned chip/basemap will be "Close to Adequate" at best... and likely average instead. I can't tell you how much different in HP this is... but do you want "Perfect" or "Just Alright" ???
You can certainly tune HTS or BMTune to make same power the same way with boost by gear and all the same protections as Hondata or Neptune.
Do you think the tables refuse to allow ignition adjustments past a certain range? Fuel tables only go so far? What is your reasoning? They have the same adjustments.
Did you know you could tune your car with the Hondata software and then load the save file into HTS or BMTune and it will convert it? Same tune.
Remember what they all do; hack the same stock computer!
If you change fuel to e85 and tune the af correctly, you should be able to add 2+ degrees of timing at full throttle and you WILL notice that in the seat of your pants.
'Getting' basemaps are unnecessary especially off the internet. Find a tuner or learn to tune yourself. If you have a wideband in your car and you were competent enough to assemble the car you can learn to adjust air fuel ratio at the least. Pretty much any honda ignition maps will run any honda motor just fine to get it started.
Its not that hard like everyone makes it seem!
Its not that hard like everyone makes it seem!
So basically if I don't have extra money, going for Hondata is not that great... then I think I will stick with my original plan and get the chipped CROME ECU I linked. My friend is experienced in tuning and I've watched a lot of resources online so I think we will stick with CROME, we can always go to a tuner if something doesn't feel right, but worth a shot to try and learn by myself.
Since this is my first project car, I wanted to hear experiences and options from other people online so I really appreciate all the info from you, helps a lot. Thanks.
Nice plan. Good to hear.
One suggestion still would be don't bother with crome, give HTS or BMTune a try. It is actually better:
One suggestion still would be don't bother with crome, give HTS or BMTune a try. It is actually better:
- Changes to parameters actually affect things
- Tables with missing documentation don't exist
- More adjustability to more parameters crome never had
- Ability to do boost by gear
Hondata and HTS will achieve the same thing. Get with the new tech. Just because tech is "New" doesn't make it better... I never said that a S300 was better than other competing products... simply that a TUNABLE solution would be WAY BETTER than a basemap chip from some online or EBay source.
Personally Hondata is a waste of money. Just because you HATE Hondata doesn't make it a waste of money... it IS a quality product and has support from the manufacturer. If you are going to drop $4-600 get a stand alone like a Haltech! Where can you get a Haltech system for $600 ?
'Getting' basemaps are unnecessary especially off the internet. Find a tuner or learn to tune yourself. If you have a wideband in your car and you were competent enough to assemble the car you can learn to adjust air fuel ratio at the least. Pretty much any honda ignition maps will run any honda motor just fine to get it started.
Its not that hard like everyone makes it seem!
Personally Hondata is a waste of money. Just because you HATE Hondata doesn't make it a waste of money... it IS a quality product and has support from the manufacturer. If you are going to drop $4-600 get a stand alone like a Haltech! Where can you get a Haltech system for $600 ?
'Getting' basemaps are unnecessary especially off the internet. Find a tuner or learn to tune yourself. If you have a wideband in your car and you were competent enough to assemble the car you can learn to adjust air fuel ratio at the least. Pretty much any honda ignition maps will run any honda motor just fine to get it started.
Its not that hard like everyone makes it seem!
Misinformation or lack of experience here. No, YOU Misunderstood what the OP asked... and I will put my resume' up against yours ANY day Junior. 
You can certainly tune HTS or BMTune to make same power the same way with boost by gear and all the same protections as Hondata or Neptune. I NEVER suggested otherwise.
Do you think the tables refuse to allow ignition adjustments past a certain range? Fuel tables only go so far? What is your reasoning? They have the same adjustments.
Did you know you could tune your car with the Hondata software and then load the save file into HTS or BMTune and it will convert it? Same tune.
Remember what they all do; hack the same stock computer!

You can certainly tune HTS or BMTune to make same power the same way with boost by gear and all the same protections as Hondata or Neptune. I NEVER suggested otherwise.
Do you think the tables refuse to allow ignition adjustments past a certain range? Fuel tables only go so far? What is your reasoning? They have the same adjustments.
Did you know you could tune your car with the Hondata software and then load the save file into HTS or BMTune and it will convert it? Same tune.
Remember what they all do; hack the same stock computer!
If you actually tune it, you might make a couple more horsepower. Simply attaching a tuning system and uploading someone elses blind guess (aka a basemap) probably won't help anything.
If you change fuel to e85 and tune the af correctly, you should be able to add 2+ degrees of timing at full throttle and you WILL notice that in the seat of your pants. THIS is Misinformation... on an average stock NA Honda engine, you can reach MBT on 93 octane fuel, so you will make absolutely no noticeable increase in power using E85 and adding timing... certainly not enough to "Feel in the seat of your pants". Your lack of tuning experience is showing.
If you change fuel to e85 and tune the af correctly, you should be able to add 2+ degrees of timing at full throttle and you WILL notice that in the seat of your pants. THIS is Misinformation... on an average stock NA Honda engine, you can reach MBT on 93 octane fuel, so you will make absolutely no noticeable increase in power using E85 and adding timing... certainly not enough to "Feel in the seat of your pants". Your lack of tuning experience is showing.
My apologies if you simply meant basemap only.
I have helped the OP by giving him more options to weigh other than simply hondata s300 or bust.
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/93-octane-vs-e85-dyno-results-naturally-aspirated-engine-2351459/
Show me I am wrong.
Welcome to the internet, no one cares about your resume. I have been tuning for a long time too.
You will make more power on e85 and it can take more timing. A stock motor won't need as much as Mikey's 12.5:1 motor, but from my experience you will need to add some timing at wot.
Last edited by theYBLEGAL; Aug 23, 2022 at 09:40 PM.
Alright so the chip I linked supports BMTune? It doesn't need anything special, I just download and use BMTune on the chipped ECU?
If so, then great I'll make sure to use HTS or BMTune, the guys from HA Motorsport told me about CROME when I contacted them so for some reason I thought it's a CROME-only chip
I'll dive into some tutorials and stuff before ordering and probs next week I'll take it and see what's up. I'll update with results if you are interested. Thanks for help once again.
If so, then great I'll make sure to use HTS or BMTune, the guys from HA Motorsport told me about CROME when I contacted them so for some reason I thought it's a CROME-only chip

I'll dive into some tutorials and stuff before ordering and probs next week I'll take it and see what's up. I'll update with results if you are interested. Thanks for help once again.
Why do you think he is trolling? He is helping me with the information he is giving me, looked at his profile and website and he is not lying - seems like a really experienced tuner, so don't know why you think he is trolling/not helping me?
Alright so the chip I linked supports BMTune? It doesn't need anything special, I just download and use BMTune on the chipped ECU?
If so, then great I'll make sure to use HTS or BMTune, the guys from HA Motorsport told me about CROME when I contacted them so for some reason I thought it's a CROME-only chip
I'll dive into some tutorials and stuff before ordering and probs next week I'll take it and see what's up. I'll update with results if you are interested. Thanks for help once again.
If so, then great I'll make sure to use HTS or BMTune, the guys from HA Motorsport told me about CROME when I contacted them so for some reason I thought it's a CROME-only chip

I'll dive into some tutorials and stuff before ordering and probs next week I'll take it and see what's up. I'll update with results if you are interested. Thanks for help once again.
Yes that will work with hts or bmtune. A moates demon or ostrich will too.
Tuning with a chip alone will be tiresome, as you won't be able to make real time updates. I think the Moates Ostrich 2.0 is discontinued, tho you can find them on FB marketplace. A Moates Demon would be better since it does chip emulation and datalogging on 1 board thru 1 usb cable. Just cleaner.
Moates.net has most hardware on the cheap
I read this as you could never make as much power with a burned chip vs an s300.
My apologies if you simply meant basemap only.
I have helped the OP by giving him more options to weigh other than simply hondata s300 or bust. I used the Hondata S300 as an example of a "tuning solution" being far superior to just purchasing a chip with a basemap on it... what I could have said that would have been more informative to the OP would be "You should use a tuning solution like (fill in the blank here) instead of buying a chip basemap for an obscure engine... your results will be much better.
https://honda-tech.com/forums/all-mo...ngine-2351459/
Show me I am wrong. The link above is out of context... so you offered nothing to support your previous statement.
Welcome to the internet, no one cares about your resume. I have been tuning for a long time too. Maybe... maybe not. Street Tuning doesn't make you a Tuner... you are a Hobbyist, no matter how long you have been doing it.
You will make more power on e85 and it can take more timing. A stock motor won't need as much as Mikey's 12.5:1 motor, but from my experience you will need to add some timing at wot.
My apologies if you simply meant basemap only.
I have helped the OP by giving him more options to weigh other than simply hondata s300 or bust. I used the Hondata S300 as an example of a "tuning solution" being far superior to just purchasing a chip with a basemap on it... what I could have said that would have been more informative to the OP would be "You should use a tuning solution like (fill in the blank here) instead of buying a chip basemap for an obscure engine... your results will be much better.
https://honda-tech.com/forums/all-mo...ngine-2351459/
Show me I am wrong. The link above is out of context... so you offered nothing to support your previous statement.
Welcome to the internet, no one cares about your resume. I have been tuning for a long time too. Maybe... maybe not. Street Tuning doesn't make you a Tuner... you are a Hobbyist, no matter how long you have been doing it.
You will make more power on e85 and it can take more timing. A stock motor won't need as much as Mikey's 12.5:1 motor, but from my experience you will need to add some timing at wot.
What you linked to says it includes an SST27SF512 which is the right chip to get. Its actually a chip capable of holding 2 tunes, selectable with the Moates 2timer or similar (a few other people make similar).
Yes that will work with hts or bmtune. A moates demon or ostrich will too.
Tuning with a chip alone will be tiresome, as you won't be able to make real time updates. I think the Moates Ostrich 2.0 is discontinued, tho you can find them on FB marketplace. A Moates Demon would be better since it does chip emulation and datalogging on 1 board thru 1 usb cable. Just cleaner.
Moates.net has most hardware on the cheap
Yes that will work with hts or bmtune. A moates demon or ostrich will too.
Tuning with a chip alone will be tiresome, as you won't be able to make real time updates. I think the Moates Ostrich 2.0 is discontinued, tho you can find them on FB marketplace. A Moates Demon would be better since it does chip emulation and datalogging on 1 board thru 1 usb cable. Just cleaner.
Moates.net has most hardware on the cheap
Lastly, lets not forget that it has been said over and over again here, as well as nearly every other forum... it is always a good idea to choose a tuning solution that the tuner at the dyno that you intend to use is familiar with... not just whatever YOU think is best or just happened to be a good deal. If however, one is simply going to "Street Tune" in a DIY fashion, it doesn't matter what the local tuner thinks and all options are on the table... but this doesn't mean that when you want to turn the wick up on that project that you have, and you want to make sure it is safe by placing it on a dyno, that the tuner will be agreeable then.
I'm not going to quote all that so this thread doesn't get outrageously long.
Have you ever tuned a stock motor on e85? I have. Many of them. They are all faster than their 93/87 octane brethren. The lower the static compression the lower the gain. I live in the middle of the midwest where e85 pumps are everywhere and the folks in my town test the stations fuel quality like a religion. All my friends run E. So I have a decent amount of experience with it.
There's another myth I will bust for you. I've been running e85 for the last 2 years on one of my track cars completely stock fuel system minus rc550 injectors (from ~2003). The stock fuel pump and lines are fine. I don't have black rubber particles in my fuel tank and my return lines are fine. I have read bad things, but I experimented on my own stuff for fun. So far so good. Shoot it sat with a half tank of E all winter. Fired up like a champ. Never had issues with E corroding stuff or gumming things up.
I have 'resurrected' tuning using a moates ostrich and a hulog and bmtune as of this year. I did avoid them for years, avoiding crome. But those days are over. Spreading awareness that hondata and neptune are an expense you can avoid. Yeah you still have to buy hardware, either way, but you don't need to spend money for a license for software!
1 cable is cleaner but its functionally no different than single cable/board designs. No it won't affect dyno tuning speed thats funny.
Have you ever tuned a stock motor on e85? I have. Many of them. They are all faster than their 93/87 octane brethren. The lower the static compression the lower the gain. I live in the middle of the midwest where e85 pumps are everywhere and the folks in my town test the stations fuel quality like a religion. All my friends run E. So I have a decent amount of experience with it.
There's another myth I will bust for you. I've been running e85 for the last 2 years on one of my track cars completely stock fuel system minus rc550 injectors (from ~2003). The stock fuel pump and lines are fine. I don't have black rubber particles in my fuel tank and my return lines are fine. I have read bad things, but I experimented on my own stuff for fun. So far so good. Shoot it sat with a half tank of E all winter. Fired up like a champ. Never had issues with E corroding stuff or gumming things up.
I have 'resurrected' tuning using a moates ostrich and a hulog and bmtune as of this year. I did avoid them for years, avoiding crome. But those days are over. Spreading awareness that hondata and neptune are an expense you can avoid. Yeah you still have to buy hardware, either way, but you don't need to spend money for a license for software!
1 cable is cleaner but its functionally no different than single cable/board designs. No it won't affect dyno tuning speed thats funny.
Ethanol blends make more power even on a non-knock limited NA motor than 91 octane, proof for the future googlers
My hatch is still running 100% oem fuel lines and still running e85 after all these years. No issues! Myth still busted!
Thread
Thread Starter
Forum
Replies
Last Post
jonathanmasta
Engine Management and Tuning
2
Aug 17, 2020 11:22 AM










