long story cut very short was in an argument with buddy.. buddy of mine has a b16 with a vortech, sleeved motor with 9:1 c/r every bolt on there is. including ITR intake, STR tb, CTR cams. aem tuned. 9200 redline my motor will be the exact same except gsr cams, ITR tb, and aebs typhoon manifold and sc61 turbo and hondata. also b16.and also 9200 redline he has a custom 17pound pulley I will run 20psi. he has a full interior 93 cx hatch with sound system I have a full interior 94 EX coupe. but no soundnow I know there are tons of variables , yada, yada but is it possible he can make more power than me his 17 psi vs my 20. i was told that blowers make more per pound at lower boost levels than fairly large turbos. I know the sc61 isnt a joke turbo. but can he make more power than me? or do I have to boost 25psi? be honest will I need more than 20 psi?


Modified by Boostage at 3:43 PM 1/11/2004

 

not likely. turbochargers are more efficient than superchargers because SCs take power to make power (turning the pully and compressor wheel robs power, as do all belt-driven accessories). at roughly the same boost level, the turbo will make more power every time. expecially if the turbo is intercooled and the SC is not.

 

It's not even a fair race 17psi vs 17psi, let alone you being at 20 psi. You should have no trouble beating him assuming you know how to drive correctly

 

He will probably get you off the line (assuming he hooks up) but once you get full boost he will get anhilated.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by superstud &raquo;</TD></TR><TR><TD CLASS="quote">not likely. turbochargers are more efficient than superchargers because SCs take power to make power (turning the pully and compressor wheel robs power, as do all belt-driven accessories). at roughly the same boost level, the turbo will make more power every time. expecially if the turbo is intercooled and the SC is not.</TD></TR></TABLE>

No offense but I would rather hear from someone with actual experience like artturbo or jinxproof. unless you have seen the dyno's of a Vortech on 17psi. that comment made no sense. what u just explained is that a turbo has a more effecient way of making power.. which is true. that doesnt mean any turbo will out produce any blower on the same boost level. he has the vortech V-5 trim which flows 700cfm and is good for 475 @20psi with a 72% adiabatic effecincy at that level. (according to vortechs site). in simpler terms his blower is up there with an sc61 up to 20psi (on paper) and his car is no slouch. please no theories, about what is more effecient, I have seen many times where real life contradicts the info on HT, buts thats another story. now a Vortech v-5 trim on 17psi vs my 20psi. similar motor. do you know if there is a chance?

 

the blower would make less power, and also would be out run.

the blower makes power dependent on RPM and never really runs out of a power band, but it never peaks and flattens out. Basically its like a really big N/A engine in a way. But you'd smoke him same boost. And with 3 more psi, it's not contest.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITRswapandslow &raquo;</TD></TR><TR><TD CLASS="quote">the blower would make less power, and also would be out run.


</TD></TR></TABLE>

Are you saying you have seen a V-5 blower at 17psi on a dyno?

 

i am not super familiar with vortech's boosting to 17+ lbs on a honda. but i do know that the sc61 at 20 lbs with the right tune should make over 400 to the wheels. however, that is only cracking the surface with that turbo. it is not meant to be run at 20 lbs. 26-28 is more like it and making over 500 to the wheels. the vortech will never touch any of those numbers. even with the extra 200 or so pounds you'll have, you'll murder that car.

 

people should really not buy turbos that are meant to be run at 28 lbs if they only plan on boosting to 20. you could be using a slightly smaller turbo and have a much better powerband.

 

My friend barely beat me with 10psi on his vortech b16 vs my ls tubo @7psi....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jinxproof99 &raquo;</TD></TR><TR><TD CLASS="quote">people should really not buy turbos that are meant to be run at 28 lbs if they only plan on boosting to 20. you could be using a slightly smaller turbo and have a much better powerband.</TD></TR></TABLE>


its about time some one feel the same way i do

every one is looking for big whp per psi and not thinking about the power band

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jinxproof99 &raquo;</TD></TR><TR><TD CLASS="quote">i am not super familiar with vortech's boosting to 17+ lbs on a honda. but i do know that the sc61 at 20 lbs with the right tune should make over 400 to the wheels. however, that is only cracking the surface with that turbo. it is not meant to be run at 20 lbs. 26-28 is more like it and making over 500 to the wheels. the vortech will never touch any of those numbers. even with the extra 200 or so pounds you'll have, you'll murder that car.</TD></TR></TABLE>


so what your saying is a MAY need to run more boost to beat him? I mean hell they claimed 475hp @20psi with a adiabatic effeciency of 72% which is very SICK!. and he could possibly have the G trim which is even sicker my motor has only rods and pistons, no sleeves yet. so 28psi may not happen

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DLB1994 &raquo;</TD></TR><TR><TD CLASS="quote">


its about time some one feel the same way i do

every one is looking for big whp per psi and not thinking about the power band </TD></TR></TABLE>

my shift point will be set to 9200. I expect 10psi at 5 grand with my low compression. so yeah I do think the sc61 will make me a nice power band.

 

Why dont you just go race him? Do you try and figure everything on paper first? Are you planning your entire setup around one car? If so just keep in mind there is always one faster.