Is there any way to add more horsepower?

Tiny
ETHANWELLBORN
  • MEMBER
  • 2015 HONDA CRV
  • 2.4L
  • 4 CYL
  • AUTOMATIC
  • 105,000 MILES
Like a turbo/supercharger, or cold air intake, or some sort of tune? I want to make it louder and quicker for fun. I’m not sure where to start.
Vehicle listed above is an EX-L model.
Sunday, July 31st, 2022 AT 11:49 AM

3 Replies

Tiny
BORIS K
  • MECHANIC
  • 799 POSTS
Hello,

Looking at the engine it should be a K24W9 with a compression ratio of 11:1 and direct injection.

This compression ratio makes it unsuitable for any bolt on forced induction conversions.
To fit either a turbo/super charger it would require mayor internal modifications as in new pistons to lower the compression ratio reliably

This would make any conversion very expensive as you would require new pistons, piston rings, con rod bearings, gaskets, turbo charger, exhaust manifold, tubing, intercooler, possible larger injectors and a modified/new engine management system. That is if you do the spanner work yourself. A modification of this magnitude can yield power gains of 100%+ depending on boost levels. Keep in mind that any mayor power gains achieved will lead to extra wear on the transmission and brakes. So, expect to spend thousands of dollars.

An idea of what is involved, this was for an older CRV so not directly applicable to your car:
https://joelatwar.medium.com/lets-turbo-charge-a-honda-cr-v-92187356aeff

An Intake system modification with new air filter/induction pipe and possible new larger diameter/free flow exhaust system will yield power gains of 10-15%

A tune of the engine management system, usually a reflash of the PCM, should give you around 10-15% gains.

So, it all depends on your budget.

Also keep in mind that any engine modifications will change the emission levels of your vehicle, so you need to ensure that these are state legal before wasting any of your hard-earned money.

Hope this helps.

Cheers, Boris.
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Monday, August 1st, 2022 AT 1:26 AM
Tiny
ETHANWELLBORN
  • MEMBER
  • 3 POSTS
Hi Boris,

Thank you for the answer, it was super insightful. One thing i’d like to ask is: If I don’t turbo/supercharge my CR-V and just do other mods such as a cold air intake, suspension, allow wheels, new exhaust system, remap, or some sort of tuning chip I can find that actually works, would that be enough to put the 0-60 from 8.9 seconds to at least 8? Lol. I don’t want to have to spend tons on a turbo/supercharger as well as the installation. I don’t want an ultra-fast car, just something a little quicker than what it is now.
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Monday, August 1st, 2022 AT 8:37 AM
Tiny
BORIS K
  • MECHANIC
  • 799 POSTS
Hello

A cold air induction system, performance exhaust system and a decent remap of your PCM should yield 20-25% power increase. This in turn will increase the performance of your vehicle.

Suspension upgrades will not give the vehicle any performance gains and aftermarket wheel/tyre combinations may make the vehicle slower as larger/wider tyres will add to drag.

I would suggest to visit a rolling road tuner and take before and after power runs to measure the power increase achieved,

A good measure of acceleration would be to attend a local drag event at your nearest drag strip. Enter your vehicle to record acceleration times and overall ET. Repeat after modifications

A decent cold air intake system
https://www.aemintakes.com/blog/2015-2016-honda-cr-v-owners-with-an-aem-cold-air-intake-can-expect-a-boost-in-horsepower/

Note regarding the exhaust system, only fitting a rear muffler will not yield any worthwhile gains. Ideally the system should include a performance manifold(if available), sport catalytic converter and new tubing. Stainless steel would be preferred

Cheers, Boris
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Tuesday, August 2nd, 2022 AT 3:08 AM

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