371 fwHP, 369 fw lb-ft tq
08-02-2002, 03:01 PM
#81
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Join Date: Jun 2002
Posts: 5
this post was really long! i could have read it more carefully, but i'm at work and don't want to get **** from the boss.
are you rrunning a 255 lb/hr fuel pump? are you running big *** injectors, like 42mm or so. look into these two things. also, is it tuned on a dyno?
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels. so, unless the sho engine is vastly superior to your motors (which it isn't), you just have some tuning issues that need to be ironed out. and the supercharged shos don't have anything fancy like stand alone engine managment. all we got is a piece of crap chip that either runs too rich or too lean (sometimes in the same day!). you shoud be over 450 hp to the wheels if tuned and set up correctly.
see ya,
Robby
are you rrunning a 255 lb/hr fuel pump? are you running big *** injectors, like 42mm or so. look into these two things. also, is it tuned on a dyno?
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels. so, unless the sho engine is vastly superior to your motors (which it isn't), you just have some tuning issues that need to be ironed out. and the supercharged shos don't have anything fancy like stand alone engine managment. all we got is a piece of crap chip that either runs too rich or too lean (sometimes in the same day!). you shoud be over 450 hp to the wheels if tuned and set up correctly.
see ya,
Robby
08-02-2002, 07:37 PM
#86
Originally posted by centaurus3200
this post was really long! i could have read it more carefully, but i'm at work and don't want to get **** from the boss.
are you rrunning a 255 lb/hr fuel pump? are you running big *** injectors, like 42mm or so. look into these two things. also, is it tuned on a dyno?
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels. so, unless the sho engine is vastly superior to your motors (which it isn't), you just have some tuning issues that need to be ironed out. and the supercharged shos don't have anything fancy like stand alone engine managment. all we got is a piece of crap chip that either runs too rich or too lean (sometimes in the same day!). you shoud be over 450 hp to the wheels if tuned and set up correctly.
see ya,
Robby
this post was really long! i could have read it more carefully, but i'm at work and don't want to get **** from the boss.
are you rrunning a 255 lb/hr fuel pump? are you running big *** injectors, like 42mm or so. look into these two things. also, is it tuned on a dyno?
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels. so, unless the sho engine is vastly superior to your motors (which it isn't), you just have some tuning issues that need to be ironed out. and the supercharged shos don't have anything fancy like stand alone engine managment. all we got is a piece of crap chip that either runs too rich or too lean (sometimes in the same day!). you shoud be over 450 hp to the wheels if tuned and set up correctly.
see ya,
Robby
How much torque to they put down. Is that on stock internals?
08-02-2002, 08:53 PM
#87
Senior Member
Join Date: Feb 2001
Posts: 653
Originally posted by Iron Lung
Wow...450. Those motors are built by Yamaha, right? How much torque to they put down. Is that on stock internals?
Wow...450. Those motors are built by Yamaha, right?
How much torque to they put down. Is that on stock internals?
It'sjust all the accesories that give out well before that! Like the alternator, power steering pump, etc 
08-03-2002, 01:17 PM
#92
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Join Date: Aug 2000
Posts: 2,394
Originally posted by centaurus3200
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels.
the average for the sho guys running 12 lbs on a vortech is 450 HP to the wheels.
http://www.geocities.com/maximamike/SHO/
08-08-2002, 09:12 PM
#97
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Join Date: Apr 2002
Posts: 6
Absolutely those 20 wheel hp went bye bye when you put the 17's (probably heavier) on. All things being equal, bigger/wider wheels/rubber will add weight, unsprung *and* driveline rotational at that. Meaning the engine has to spin them up. Even if a 17" wheel is the same weight as a 16", the wheel is bigger and it throws more weight farther away from the axle centerline, so the centrifugal force is greater (harder for the motor to spin up to speed). Walla you loose wheel hp. Lighter wheels are a significant way to increase wheel hp, and throttle response.
BTW nice numbers. People get stuck on hp, peak hp numbers which are meaningless. HP is just a math equation, of torque and rpm. Torque is what you are after, (and in general a nice flat curve) and you're making a butt-load on peak.
mark
92 SHO - 14.70 @ 95+ mostly stock
89 SHO - 13.93 @ 99.7 all throttle 13.53 @ 103+ 60 hp of N20
BTW nice numbers. People get stuck on hp, peak hp numbers which are meaningless. HP is just a math equation, of torque and rpm. Torque is what you are after, (and in general a nice flat curve) and you're making a butt-load on peak.
mark
92 SHO - 14.70 @ 95+ mostly stock
89 SHO - 13.93 @ 99.7 all throttle 13.53 @ 103+ 60 hp of N20
08-09-2002, 08:11 AM
#99
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Posts: 5
no, the sho engine WILL NOT spin to 14K rpms! it will spin to 8500 rpms on a repeated basis with out any damage.
but, foget the SHO engine, we are talking about maxima engines. i think mark (drivenhard) is correct. big *** dubz are NOT performance items, they are aestetic items.
so, you put on bigger rims when you dynoed with more boost? if so, go back to the smaller rims. check the a/f ratio, if it's running really rich, you will loose HP (and too lean will blow the engine). also, could you be at the max the intake can flow? don't know enough about it? if so, more boost just causes more pressure, like trying to shove a 350lb guy into a toyota echo. not going to happen. if this is the case, time to extrude hone and other fun stuff. also, with double digit boost, time to put on a catless y-pipe. you don't want ANY restrictions on the exhaust.
on a side note, i did more research. the 450HP (at the wheels - 530HP at the crank) on the stock sho engine was 15 lbs of boost (pat mcgrath). he was doing over 400 with 12lbs. still not bad.
tricked sho shop shos - 3.2L, lowered compression stage II cams, extrude honed intake and the usual bolt ons WILL get you 450 HP (whee HP) at 12 lbs of boost though.
bottom line, if you want the most from a custom boosted engine, it's going to cost a lot in dyno time. like aroun $1500. but, it's well worth it.
oh yeah, mark is right, peak HP makes for cool graphs, torque makes a car fast. your cars and the SHO are very similar, any more than 300 HP at the wheels is useless, it will just spin. sure is fun on the highway and at opentrack events though. not good for the drag races.
see ya,
Robby
but, foget the SHO engine, we are talking about maxima engines. i think mark (drivenhard) is correct. big *** dubz are NOT performance items, they are aestetic items.
so, you put on bigger rims when you dynoed with more boost? if so, go back to the smaller rims. check the a/f ratio, if it's running really rich, you will loose HP (and too lean will blow the engine). also, could you be at the max the intake can flow? don't know enough about it? if so, more boost just causes more pressure, like trying to shove a 350lb guy into a toyota echo. not going to happen. if this is the case, time to extrude hone and other fun stuff. also, with double digit boost, time to put on a catless y-pipe. you don't want ANY restrictions on the exhaust.
on a side note, i did more research. the 450HP (at the wheels - 530HP at the crank) on the stock sho engine was 15 lbs of boost (pat mcgrath). he was doing over 400 with 12lbs. still not bad.
tricked sho shop shos - 3.2L, lowered compression stage II cams, extrude honed intake and the usual bolt ons WILL get you 450 HP (whee HP) at 12 lbs of boost though.
bottom line, if you want the most from a custom boosted engine, it's going to cost a lot in dyno time. like aroun $1500. but, it's well worth it.
oh yeah, mark is right, peak HP makes for cool graphs, torque makes a car fast. your cars and the SHO are very similar, any more than 300 HP at the wheels is useless, it will just spin. sure is fun on the highway and at opentrack events though. not good for the drag races.
see ya,
Robby
08-12-2002, 11:22 PM
#102
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Join Date: Aug 2002
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To backup one of the users's earlier replies, here's an example regarding turbo sizing & boost levels with their affect on 1/4 mile times. I own two cars, one with a T3/04B turbo set to 10psi, and the other with a junkyard-sourced Saab T3 turbo set to 8psi. The first one put 304hp down to the rollers, the second managed just 184hp. The first one makes all of the power at the way top of the power curve, the other makes it mostly low and in the middle, followed by a dropoff. The times at the track were 14.6@104 for the first and 14.7@94 for the second. If you were racing these two cars on the street, the one with less hp would probably win most races by a small margin. This is due to the characteristics of the different turbos utilized on each car.
Take the same type of differences to Nigel's car, and the results would be similar. His car initially appears to be somewhat tame as the revs are climbing, but then all hell breaks loose as the power comes in hard. Very similar to many modified Supras. It would be possible to construct this kit using other turbos pretty easily. Even a twin setup isn't that much more involved (excluding space issues). I suspect that when Nigel brings his car over with a T3/04 installed, the power band of the graph is going to shift to the left, and the overall height will be quite a bit lower. My initial guess-timation would be for ~260hp at his current boost level. BUT, this wouldn't necessarily mean that his car would be any slower OVERALL, when driving at "typical" speeds (up to about 85mph). After that, the bigger turbos will take over without question. The flip side is this - if he decides to use the next size up turbo (in this case, the 60-1), depending on trims and A/Rs, he could have more power without doing much of anything else. Only time will tell as to which way he chooses for the long term.
To answer someone else's question, Nigel is still using the stock injectors, as the kit utilizes a rising rate fuel pressure regulator to assist with consumption under boost. Larger injectors would help out, as would further tuning of his AFC.
Take the same type of differences to Nigel's car, and the results would be similar. His car initially appears to be somewhat tame as the revs are climbing, but then all hell breaks loose as the power comes in hard. Very similar to many modified Supras. It would be possible to construct this kit using other turbos pretty easily. Even a twin setup isn't that much more involved (excluding space issues). I suspect that when Nigel brings his car over with a T3/04 installed, the power band of the graph is going to shift to the left, and the overall height will be quite a bit lower. My initial guess-timation would be for ~260hp at his current boost level. BUT, this wouldn't necessarily mean that his car would be any slower OVERALL, when driving at "typical" speeds (up to about 85mph). After that, the bigger turbos will take over without question. The flip side is this - if he decides to use the next size up turbo (in this case, the 60-1), depending on trims and A/Rs, he could have more power without doing much of anything else. Only time will tell as to which way he chooses for the long term.
To answer someone else's question, Nigel is still using the stock injectors, as the kit utilizes a rising rate fuel pressure regulator to assist with consumption under boost. Larger injectors would help out, as would further tuning of his AFC.
03-10-2003, 03:35 PM
#104
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Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by turbo97SE
Hi guys
I dynoed today at 11.5 psi and got 371 HP and 369 lb-ft to the wheels. I seem to be hitting a brick wall on boost. I can't seem to get over 11.5 psi for some reason. I am suspecting the exhaust is getting backed up again!
4" exhaust time?. My boost controller also seems to be out of whack I had to set it at 13 psi to get 11.5 psi of boost pressure.
Something's weird cos I dynoed at 352 HP @ 9 psi before, now, I only get 330 @ 9 psi. I lost 20 HP somewhere. The only thing I changed were the wheels. I used 17" 2002 wheels instead of my stock 16s.
I am definitely at injector limit!
I'll post the dyno graph pic soon! *** EDIT, dyno is on page 2 ***) Still no sign of detonation got 760 degrees C max on EGT.
Hi guys
I dynoed today at 11.5 psi and got 371 HP and 369 lb-ft to the wheels. I seem to be hitting a brick wall on boost. I can't seem to get over 11.5 psi for some reason. I am suspecting the exhaust is getting backed up again!
4" exhaust time?. My boost controller also seems to be out of whack I had to set it at 13 psi to get 11.5 psi of boost pressure.Something's weird cos I dynoed at 352 HP @ 9 psi before, now, I only get 330 @ 9 psi. I lost 20 HP somewhere. The only thing I changed were the wheels. I used 17" 2002 wheels instead of my stock 16s.
I am definitely at injector limit!
I'll post the dyno graph pic soon! *** EDIT, dyno is on page 2 ***) Still no sign of detonation got 760 degrees C max on EGT.
03-10-2003, 03:48 PM
#105
Originally posted by davis4005
Unless you can name someone with more HP in a 5 speed he's got the fastest max, 4th gens are light.
Unless you can name someone with more HP in a 5 speed he's got the fastest max, 4th gens are light.
SC's RULE!
(Well, they do until I get the money for a Turbo)
(I know this post is way old - just having some fun)
Turbo97SE is the man.
03-10-2003, 05:16 PM
#107
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Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by MAXIN
how did you pull up this old post without searching? bookmark?
how did you pull up this old post without searching? bookmark?
03-10-2003, 07:48 PM
#109
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Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
Originally posted by tampamax
RC only blueprints the injectors you send them. They don't sell any.
RC only blueprints the injectors you send them. They don't sell any.
03-10-2003, 08:02 PM
#110
Senior Member
Join Date: Nov 2002
Posts: 905
Re: Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by turbo97SE
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
Bro, take it easy on me geez. I didn't notice it was an old post until after I posted a response. I was a little distracted by my girlfriend (doing a double reverse bluejay-zabida-on the back side) at the time. She hates the org. "it takes away from our quality time" she says
03-10-2003, 08:37 PM
#111
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Re: Re: Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Dude, the geeez wasn't for you it was surprise at this thread coming back to life! Relaaaaax!. WTF is a "double reverse ..." ?
Originally posted by tampamax
Bro, take it easy on me geez. I didn't notice it was an old post until after I posted a response. I was a little distracted by my girlfriend (doing a double reverse bluejay-zabida-on the back side) at the time. She hates the org. "it takes away from our quality time" she says
Bro, take it easy on me geez. I didn't notice it was an old post until after I posted a response. I was a little distracted by my girlfriend (doing a double reverse bluejay-zabida-on the back side) at the time. She hates the org. "it takes away from our quality time" she says
03-10-2003, 10:22 PM
#112
Re: Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by slammed95
Ummm, wrong. http://www.rceng.com/prices.htm Seems like they sell plenty of injectors.
Ummm, wrong. http://www.rceng.com/prices.htm Seems like they sell plenty of injectors.
03-11-2003, 08:14 AM
#113
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Re: Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by turbo97SE
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
03-11-2003, 09:12 AM
#114
¿Hablas Español?
Join Date: Oct 2001
Posts: 851
Re: Re: Re: Re: 371 fwHP, 369 fw lb-ft tq
Originally posted by turbo97SE
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
This is old news! Geez! Well reading about the injectors reminds me that my 370CC injectors arrived today! Dunno whether to wait for my new engine to be built or just install them on my current one. It's a pain in the a$$ to pull off that upper intake manifold!
03-11-2003, 02:31 PM
#119
Re: Re: Unless you can name someone with more HP in a 5 speed he's got the fastest max, 4th g
Originally posted by seximagtr
agreed... dallas crew 0wnz
agreed... dallas crew 0wnz
We have Mardi!!!! The fastedt Max on the Planet!!!!
