Hey guys,

Im getting a Buschur 2.0l Shortblock in the next coming week or so, I was im debating on weather getting a Buschur Stage 3 head with it also.

First off before i write the question yes i know a Stage 3 head is better then stock!

1. Could the stock head be able to Rev out as high as a Stage 3 head?

2. I know that a stage 3 head changes the power band but how much more top end would i get with a stage 3 head up top compared to stock? with my mods in my sig?

3. The reliably of keeping a stock head making 550whp plus

 

i dont get it a built head is going to be better in all aspects. if you want to rev high get better springs and retainers in your stock head. simple as that but the built head will improve power and flow in all depts. If one does not want to mess with the shorty I would at least invest in a well built head any day of the week. The gain in power is all in the TUNE to be honest there is not true set number.

 

The stock head is good for over 800whp, with upgraded springs & retainers and obviously cams.

 

you read my mind !!!

 

good to know

 

No a stock head cannot rev out 9500RPM.. If you want a BR ported head you want it so you can rev the car 9000+, Spool the turbo better, and make more power at less boost..

Sure a stock UNported head with valvetrain could make a 1000hp.. But it might take 10 more PSI of boost to do it..

Mike

 

BAM and the man speaks the gospel. Mike ill be enjoying your old built head soon lol. see what numbers it lays down

 

Hmm, so I keep the stock head and get springs n retainers I can rev out to 9k.. But if I were to get a built head I would spool up quicker n make more power?

 

Bingo..

 

yes sir

 

im leaning more towards the stock head bec it will save me 1.5k and i pretty sure with the setup i could hit 550-600 and im happy with that

 

your not going to hit that mark or even close with a stock head and mods im reading in your sig sorry not happening. what oct are you using??? e85 or lower??? you are severly stretching the limits of one walbro at 525whp level it will never make 600 with one fuel pump and if your using e85 definatly a no go with one pump.

 

E85 fuel limits are about 450-500. And when I say 500 I mean you need at least an inline Bosch to go with. If you are thinking about anything over 450 then look into a inline fuel pump at least (or just get a double pump kit).

 

I hope I am being stupid but are the #'s in your sig with the turbo upgrade or without....

I don't get it, your doing all the upgrades but your going to short your build by $1700?

Why would you not like to increase power, spool, make power at a lower psi and also have a safety net for revving?

Sounds like it would be the best $1700 you could spend to me.

I didn't do the fully built head and I kicked myself after I got my car back. even if I could have spooled up 100-200 rpms quicker, made 10-15 whp and increased my rev's.... i hated myself for not doing it.

also, if all your adding is a buschur built 2.0 - the block itself isn't going to yield you 70-100 whp.

after re reading your post, I am assuming that you are adding the motor and a fp turbo at the same time?!

 

correct the block is not going to give you any whp just allow you to hold more boost which equals more power. You will gain whp with a fully built head. if your shooting for 550+ you will require a built head to make things easier and better flow and spool which have already been mentioned and as green meanie and me stated above a double pumper is required.