Here's my setup:
B18A block
B18B Head (ported and polished, Crower Turbo Cams, .5mm oversized SS valves)
Wiseco 8.5 CR forged and coated pistons
Eagle H-beam rods
RC 750cc Injectors
Walbro 255 pump
SC34

What is the maximum boost or HP I could run with this setup? This car will be daily driven, but obviously not a peak boost all the time.

Thanks.

 

500...get some 1000cc injectors and a sc61

 

and a j and s knock gaurd for a lil security

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamsoy1320 &raquo;</TD></TR><TR><TD CLASS="quote">500...get some 1000cc injectors and a sc61</TD></TR></TABLE>
I'll only be revving to around 7500-8000 RPM. I thought that sc61s take a while to spool up. Also, would I need 1000cc Injectors? I though for sure that 750cc would be big enough.

 

For your sc32 the 750 is very plenty. Due to the oil refineries adding all that ethanol, run a safe timing and safe a/f w/ a good tune you should be ok up to 13-15 on pump gas, race gas i would say up to 19-20 psi max.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 9sech22civic &raquo;</TD></TR><TR><TD CLASS="quote">For your sc32 the 750 is very plenty. Due to the oil refineries adding all that ethanol, run a safe timing and safe a/f w/ a good tune you should be ok up to 13-15 on pump gas, race gas i would say up to 19-20 psi max.</TD></TR></TABLE>
Are you serious? Only 13-15 on pump gas? I've seen B18s with stock internals run higher than that. I'm pretty sure I can boost somewhere around 16-18 psi on pump.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PhatBoy5015 &raquo;</TD></TR><TR><TD CLASS="quote">
Are you serious? Only 13-15 on pump gas? I've seen B18s with stock internals run higher than that. I'm pretty sure I can boost somewhere around 16-18 psi on pump.</TD></TR></TABLE>

It used to be like that, untill the last 2-3 months when 15% ethanol was added to pump gas, basically you alomost need to run 10.5 a/f's instead of 11.9 a/fs under boost. I have seen 2 motors in a row blow under 15-16 psi @ 11.9 af and safe timing. Since the ethanol was added. We even did some pulls at 10.0 a/f with no miss and before the motor would miss @ 10.5-10.8 before the add of 15% ethanol. This is Nation wide and i do not know how long it will last. Race gas is the same as it always is so race gas is safe for 11.9's. There is just too much oxygen in the fuel right now to run high boost w/ pump gas. Just trying to help you out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 9sech22civic &raquo;</TD></TR><TR><TD CLASS="quote">

It used to be like that, untill the last 2-3 months when 15% ethanol was added to pump gas, basically you alomost need to run 10.5 a/f's instead of 11.9 a/fs under boost. I have seen 2 motors in a row blow under 15-16 psi @ 11.9 af and safe timing. Since the ethanol was added. We even did some pulls at 10.0 a/f with no miss and before the motor would miss @ 10.5-10.8 before the add of 15% ethanol. This is Nation wide and i do not know how long it will last. Race gas is the same as it always is so race gas is safe for 11.9's. There is just too much oxygen in the fuel right now to run high boost w/ pump gas. Just trying to help you out.</TD></TR></TABLE>
So what else do you think i would need to be able to boost around 25 psi and make around 400-450 HP?

 

Is this a stock sleeved block? Yeah 9 sec civic knows what hes talking about. That ethanol does make a large difference in tuning and at high amounts of boost your asking for trouble if not tuned properly.

 

well 400 is no joke and if your boosting more than 18+ to be on the safe side you should sleeve but since you didn't do that well then your can only push as much as my car till your clyinder wall crak... they are about the same thickness. but i like your compression you should be fine with that compression ratio. i say on a good turbo setup um... around 15psi i say 300whp

http://media.putfile.com/Civic-Sohc-Turbo

 

^ dont listen to him.

you can run 20psi on stock sleeves (this is an example, dont take it literally) on race gas as long as its tuned right. its all in the tune. you can crack a sleeve at 5psi on a bad tune.

15psi on an sc34 is gonna get you around 275-300whp or so.

 

So what size turbo would be good for my setup if I want 375-450 HP at around 20 PSI?

 

A)thats a broad hp number. narrow it down, for 375 a t04e 57 trim would do (around 16-18psi) but for 450 youre almost out of its efficiency range (max 475whp or so)
B)psi doesnt mean ****. dont look at it psi wise,look at it powerwise and do whatever it takes to get there

 

Good points on ethonal in this thread. Spiking fuel with ethonal is just wrong...

 

not really. if you tune it right you can make more power on ethanol than with gasoline... of course 15% is pretty pointless. im waiting for e85 to come to ga, so i can swap between that and meht

 

you can run 20psi on stock sleeves (this is an example, dont take it literally) on race gas as long as its tuned right. its all in the tune. you can crack a sleeve at 5psi on a bad tune.

15psi on an sc34 is gonna get you around 275-300whp or so.

what are you talking about. you can run 20psi, i bet you can run 25psi but if you do your just dumb ***. yea sure i can push 20psi on my car right now. i done it. but would i, hell no for everyday use and on 93 you got to be kidding me. i'm not into race gas by the way. tune it right, you mean tune it safe. i dont' get with the tune it right. i tune my to be safe. that's like saying oh you can go 27psi if you tune it right and make 450hp. ya in your dream. you mean if you tune it aggressive.., like run 12 a/f and 4 pound per retard... yea maybe and if you don't care how long your engine gonna last i say go for it...(this is an example, dont take it literally) "you can crack a sleeve at 5psi on a bad tune" i'm sure you can crack a sleeve without boosting...

 

i never said everyday use. keyword was racegas

 

Unless you have 2 different programs your gonna run into issues. Race gas w/ a good safe tune w/ your set up, 20-22 psi is ok IMO, But if you tune it to race gas @ 11.9 af, and you wanna daily drive it w/ pump gas you gonna run into problems with the shitty fuel out there. Ethanol is great for power but you need to run a lot richer tables. @ sea level regular fuel is 14.7:1 stoichiometric, ethanol is 7:1, and methanol is 4:1 i believe not possitivily sure. Soo if you tune it to Street tune with the af's 10.5's, and you wanna race at the track you put full leaded race gas its gonna choke and spit down the track w/ 10.5s. Anyways i hope they take the ethanol out, yeah its good for the NA motors w/ stock compression or less and runs cleaner due to less hydrocarbons and more oxygen, but Forced induction is risky to me. Good luck everyone, thats why my SFWD is a trailor queen for now. See you all in Vegas!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">A)thats a broad hp number. narrow it down, for 375 a t04e 57 trim would do (around 16-18psi) but for 450 youre almost out of its efficiency range (max 475whp or so)
B)psi doesnt mean ****. dont look at it psi wise,look at it powerwise and do whatever it takes to get there</TD></TR></TABLE>

Ok I would like to make around 400-420 HP.

 

youre going to be pushing a t04e 57 or even 60 trim.

you could look at an sc61 or something along those lines

 

What about a good size ball bearing turbo for this setup for around 400 HP? (sorry, I'm not real good with turbo numbers)

 

or what about a holset? i would think an hx35w would be enough for 400whp.
and i know an hx40 would do it, they will split the block on a 5.0(500+)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95cxh22a &raquo;</TD></TR><TR><TD CLASS="quote">or what about a holset? i would think an hx35w would be enough for 400whp.
and i know an hx40 would do it, they will split the block on a 5.0(500+)</TD></TR></TABLE>
Yeah, but how much lag are we talking about?

 

pmed.

 

PMed back