f20a4 and ITBs

Dennis van dijk · Post by **Dennis van dijk** » Fri Oct 09, 2015 9:23 am

Hi guys

I have a f20a4 in my 5th

Now i was thinking about fitting ITBs

I can get a set of somebody

Who has tips or tricks

The easy way is fit a h22 but i just want something nobody has haha and keep the original engine

Post by **Merlin** » Fri Oct 09, 2015 9:30 am

ITB's are really for a built engine. I think that it is far more hassle that it is worth to fit to a stock engine, even on an H22 let alone a F20.

You'd be better going turbo if you want more power IMO.

Post by **NafemanNathan** » Fri Oct 09, 2015 9:44 am

Yeah ITB's are really the cherry on the top of a built motor.

Dennis van dijk · Post by **Dennis van dijk** » Fri Oct 09, 2015 10:14 am

Thats my point

To much people do turbo and swaps ..

Its not only for the power (just a little) but more for the looks

I only need to know about sensors and stuff

Post by **NafemanNathan** » Fri Oct 09, 2015 10:28 am

When we say they're really for a built engine or the cherry on the top we mean they won't perform properly without all the other neccessary ingredients. First of all you'd need a proper tune to run them at all, so I'm not sure what ecu that would mean with it being an F20a, but you'd need something like Hondata or a standalone ECU, so that'll add a good grand to the price at least once tuned. But even when tuned, you'll be needing to rev the absolute nuts off of the engine just to get any sort of power, and we'd still be talking minimal gains if the engine's stock, for something that would be giving you a good +20bhp on top of what would have been +260bhp in a built h22a.

I appreciate wanting to be different definitely, but ITBs on a standard F20a4 for the sake of being different definitely is not the way to do it. Flogging a dead horse isn't even the right euphemism

Dennis van dijk · Post by **Dennis van dijk** » Fri Oct 09, 2015 11:50 am

You are right

Its not that i only just want to put them on the block and drive

I have an extra motor so i can rebuild one

Only what do i need for this job

Post by **NafemanNathan** » Fri Oct 09, 2015 12:02 pm

A compatable ECU that you can tune. You might be able to use a P28 or the like with Hondata, but you'd have to look into that.

You really would want an uprated camshaft, but I'm not sure they'd be any on the market that'd work well with ITB's, so you might have to go custom.

Then you'll want an uprated valve train.

Then ITB's work best with higher compression, so you'd want to consider pistons and rods to suit. Again, probably go custom.

Depending on the ECU you end up using as well, you may have to consider a custom harness.

That's all going to be one hell of an expense and hassle and you'll still only just be looking at standard H22a power (if you're lucky), so different or not, I'm sorry, but you'd be an absolute fool to throw that kind of money at an F20a!

106pete · Post by **106pete** » Fri Oct 09, 2015 12:14 pm

I'm doin itb's and like Nathan says it's very expensive for very little, I have chosen to use a dta s60 ecu with custom loom and ctr coil on plug. Costs are something like this:
Dta s60 £750
Loom £300
Ctr coils £100
Bigger injectors £200
Mapping £350
Tps £50

I'm also using a Peugeot crank position sensor to remove the origional dizzy and coil which is another £150

My reasons for it are that I'm building up to drop in a modded engine but for now it'll be tuned on the stock and see what happens! But it's also a good way to remove a lot of unnecessary parts from the engine bay.

Dennis van dijk · Post by **Dennis van dijk** » Fri Oct 09, 2015 12:17 pm

Hmmm im going to think about it

I think its almost going to be the same price with a h22 swap for me

Engine and parts and the inspection here in holland

gb-lude · Post by **gb-lude** » Fri Oct 09, 2015 12:21 pm

is there anything I missed when you asked me the same question?

Don't make it so hard on yourself Dennis! Just buy my H23 VTEC , thats rare enough in Holland