2"1/4 exhaust question

[Ek4Vtir]

Noobie question just want to see some
views. Own an ek4 vtir b16a thinking bout turboing the car for more power. Currently have a 2"1/4 inch catback system exhaust, is it too small and restricted and I need to upgrade it? Or cirtent setup would work fine?

Thanks guys.

[defect]

2.5" or 3" would be good for turbo :>

[Ek4Vtir]

Ah I see, guess there's no such thing as a quiet turbo car ay cop magnet :p

[DLO01]

Depends on your setup. 2.5 will be fine for a low boost stock internal setup.

Also, turbo hondas are not loud. Turbo keeps the exhaust quite. Invest in a good muffler and resonator if needed.

[ZeForce]

Bigger exhaust will make the turbo spool quicker, that being said Im only running a 2.5" exhaust on my setup....

[tekung89]

a 2.5inch exhaust on a turbosetup would most likely be more quiet then ur 2.1/4inch NA exhaust.

[Limbo]

i ran a 2 1/4 setup on my first turbo, was fine and i made 160kwatw.

I'm only running 2 1/2 atm now and only making 163kw, so not much difference in the exhaust side.

on a b16, its still a very small motor if your on a budget stay with the 2 1/4 first and see how you do.

[Ek4Vtir]

Kool thanks for the advice guys :)

[B16]

I'm running 8psi through stock internals and running a 2.25 cat back, made 163kw atw. No need to upgrade your exhaust just yet, sure a bigger one will flow better, but it's not a pre-requisite

[Ek4Vtir]

Kool man turbo makes a huge leap in Kw how about Torque? Boost much?

[Limbo]

torque is even more so, why do you think boosted cars have traction problems?

[Lukezen27]

So anyone know how much PSI is safe with 2.5"?

I'm thinking of going a low comp HG

[FastFwd]

So anyone know how much PSI is safe with 2.5"?

I'm thinking of going a low comp HG

Moving over to the dark side with me luke :)

do the pistons, rings and rods yourself. will only cost you $1500 for the rebuild. Then u can boost that b1tch up....

[Limbo]

lol dude if you come over to syd and give me a hand i'll move over the dark side also!

[FastFwd]

its piece of piss i could even talk you through it with some pics. If i lived in syd i would honestly help you with it. wish more people in perth turbo'd honda's i would be happy to help them.

[FastFwd]

maybe i should make a rough diy on it.

[Limbo]

yeah my biggest prob is i tend to break bolts ;p
last engine conversion i did i broke a few chassis bolt LOL
that's what happens when your friends tell you to do them up as tight as cos you can't break them LOL.

If your interested in coming to sydney i'll put you up for the time if you help me with the work ahahaha, got a spare room at my place which i use for storage

[FastFwd]

:) i may take you up on the offer...

Taking everything apart is the easiest part. You lay it all out, clean everything up, degrease it, polish it, paint it make it look all smick and then putting it back together is a slow occasionally painful process. Bolt by bolt nut by nut reading through manuals using a torque wrench to tighten everything.

One issue i had which i wasnt aware of when doing a rebuild is always try replacing the cam cap bolts because the heat over time can cause them to weaken and when using the original torque settings i snapped 3 of them. Nothing a bit of patience and a thread removal tool from bunnings didnt fix.

I have a rebuild video from a guy in the US building a high comp b16a2, crank, rods, pistons, rings, cams, gears, sld, clutch..everything. If both you and luke want i can share it on media fire and you can download it off me.

email me at fastfwd@lanaddicts.com.au to remind me to upload it on there.

Its a great video, step by step, slowely shows you all the tips and tricks and the best way to get the most power out of your rebuild. I only once watched it over the night before i started to put the engine back together and that was more than enough to help me with Ring placements and a few recommend tighter torque settings for a high Hp motor.

let me know

[lookingforboost]

hmmm motor build..... i am just scared of it breaking after i would have put it togeather :(

[Lukezen27]

hmmm motor build..... i am just scared of it breaking after i would have put it togeather :(

Exactly Ryan lol

Me too........

[FastFwd]

breaking what? if you did it all the right way then theres no issues.

Although i had some trouble getting the timing sorted and getting her started afterward. Got some help with that and i was right.

[Limbo]

hmmmm interesting..... i wish i had a carport again to store everything under whilst i work on it.
Last time at my dad's i had the car there for 3mths, only worked on it from 7pm to 11pm weekdays... very new to cars at the time.

I may start sourcing some parts....
If i was gonna rebuild i was thinking b18 motor.

If i buy a b18 motor only and rebuild it, drive my car till it breaks and then do a conversion! then i would have a b18 turbo and my car would only be undrivable for maybe a weekend.

[FastFwd]

See if you can find a blown b18, or a old High km's one for real cheap cheap and then rebuild it.

[Limbo]

yeah i think i know a friend who's got one lying around, apparently blown

[Lukezen27]

yeah i think i know a friend who's got one lying around, apparently blown

We coulc practise together Hao :thumbsup:

[FastFwd]

yeah i think i know a friend who's got one lying around, apparently blown

perfect. Put it on a block stand and work on it slowly, Get the block acid bathed etc, get stuff powder coated, slowly work on it over time do a full rebuild, make it shmick and then swap the motor over one weekend when your ready.

[Limbo]

yeah luke i'll go see the motor this weekend. I'm not that cashed up atm so we'll have to see