Hi sifu/masters, I'm still a newbie towards moding cars. I'm here to seek advise/opinions regarding my car.

I currently own a Honda Accord SDA 2005 2.4l. Everything is stock except for rim & tyres. Just upsized my rim and tyre from 16" to 18"

Rim - BBS 18"
Tyre - Front 225/45/R18 (Goodyear Eagle F1)
Back 225/45/R18 (Lancaster LR-66)

Currently I noticed that FC took a slight hit & the car seems heavier (normal due to upsize). Power wise also took a slight hit (not as much torque output as 16"). All these were expected when upsizing.

Just wondering if there's any other mods that can compensate for the lost of power & heaviness.

And also are adjustables suspension worth it to prevent slight scrapping of the tyre hitting the fender? If so, any recommendations?

All your opitions/suggestions are greatly appreciated.

TL:DR looking for mods to compensate for lost of power due to rim upsize

rim offset correct or not

u dont need adjustable. very complex
find out ur spring rate & length
then replace a longer type from honda or other make.
else u research jp website how they mod

Rim offset was done by the shop as I have no idea on it. The rim & tires are now flush with the fender's body compared to being inwards.

less powerful. did u compare gps speed or base on speedo only. now you need less rpm to achieve same speed so fc meter wont be accurate
becos u driven more km than computer calculation. use manual way to kira

flush is cool. just higher chance to scrap ur tyre.
look at both side scrap mark. fender edge & tyre edge

Low cost to start for your requirement:
1. Change crankshaft pulley to lightweight type
2. Use aftermarket performance air filter
3. Use spring buffer to reduce excess rebound movement

Most of the time, these shops just want to sell you the rims hence you are facing this issue.

Either you roll your fenders to reduce the amount of scraping or changing to a different set of rims with a less aggressive offset.

Also, as the car has aged, do check the suspension as well whether if you notice any sagging (stock ones tend to slowly sag over the many many years).

I did based on speedo & GPS, they're about the same. Probably 1 - 2 km/h diff (On speedo is higher by 1 - 2 km/h)

Huh.. interesting.. Any recommendation on the brand & how much damage does it inflict?

The specs for my rim is 18x8jj et38. Probably need to check my stock suspension to see if I can stiffen it up just a little. Don't wanna throw comfort out the window..

This car stock wheels is 15" right?

You are either the person advertising that set for sale, or the person who bought it from fbmarketplace I saw the ad

Anyway, to increase power, first you have to determine how much are you willing to spend. Just accept the fact that you increase unspring weight & rolling resistance. Any attempt to increase power output would result in increased fuel & the possible need to upgrade other parts of the drivetrain & also put more stress on other stock components (eg; gearbox, etc). I am not talking about "K&N air filter" or the like.

Adjustable will generally be stiffer than your stock suspension, hence less chances for the wheels to contact the body during compression however it all depends on how you approach the bump/method of driving. If you introduce adjustable, get ready for stiff ride on your comfort Dsegment seats aka slipNslide

Weight the stock 16 inch rims plus tyres first.

U should opt for 17 inch instead of 18 inch rims. Too heavy for a 2.4L engine.

Alternatively, u can bolt on a turbo but it won't be cheap. Or if you're adventurous, a supercharger.

Stock wheels are 16"

Hahaha.. I'm not sure about the budget.. depending on the effects. Generally i don't really bother achieving top speed. Mostly pick up from torque.

Still researching on adjustable

17" I saw not that many choices.

Personally, I like the looks of 18" hehe.

BoT is around 13 - 15k, boost about 0.3 - 0.5..
Supercharger not sure about the price. But I am interested

As for my car:
1. Arospeed, but Honda got lot good aftermarket brand (Spoon, Works Engineering, etc,...)
2. Simota / HKS / K&N
3. AMT is cheaper, but if can afford Orsen is good. Little bit expensive..

Total all less than RM1k.

Supercharger also syiok because of the whining sound. Also, perfect for NA engines.

Okay cool cool, I'll check it out. Which workshop did you send your car to?

People recommend me to change intake manifold & exhaust as well.. what do you suggest?

Well, I don't really know where to start looking for superchargers mod.

And I also know that supercharger doesn't have that "lag" because it's driven from the engine's crankshaft.
Turbos are fun because of that "lag" which makes you kinda stick to the chair hehe

This accord engine is K24 right? Maybe you can read this link:

https://www.torquecars.com/honda/k24-tuning.php

Just plonk in a K24A3......

I bought online & installed by myself.

For now I'd prefer upgrade intake side first (air / spark plug / fuel). Then exhaust side (manifold / piping / muffler). But also up to your personal preferences.

Yeah, IIRC - it's a K24A4..

I came across the same link too. But I'm not sure where to get it done haha. Still a newbie in modding cars, don't wanna kena potong, ya know..

What's the difference between K24A4 & K24A3? Isn't it all the same generally?

Must be skilled to install it yourself.. Envious of you. If it's possible, I would like to install it myself too, so don't have additional cost for workmanship hehe..

Air - You mean air intake? Open pod?
Spark Plug - I just changed mine
Fuel - What is this? Fuel Injector?

Exhaust side, I'll probably get it done once I rectify other issue.

Now for whatever reason, when I engage to D after letting the car sit for more than 8 hours, it will have some delay before engaging to D and the car will jerk. Not sure why is that.

Very Different. Go to the link a few posts up and you'll see.

Intake side upgrade that I mean is from performance air filter (OEM shape or change to open pod type) to throttle body (add-on any device or use widen size) to performance spark plug. But remind you that all upgrade will cost you bit higher FC than original standard config.

Just talk to my mechanic, his first basic recommended method is to add throttle controller like Works Engineering e-Drive 3.

Your gearbox already show failing symptom. Try to add ATF enhancement like JV Lube or Nano Estremo first & see if can recover.