I build my engine when I took it to the dyno and it didn't pull the RPM that I expected. I'm just woundering how you get the rpm out of your engine. I had my car tuned at Balance Performance, ED told me that he has never had luck tunning Crower Stage 2 Turbo Cams. I know I've seen people run them and get high rpm, just woundering if my turbo cause at 19 lbs of boost the turbo played out. I also have the Crower 10,000 rpm springs.

 

How high of an RPM were you expecting? Is there a reason you need to be attaining this particular RPM level?

 

anywhere from 9,500 to 10,000 sow i can maintain 4th gear at the track with
a low gear ratio

 

have you tried using a bigger exhaust housing on your turbo? what size is it right now? im also assuming you have a massive intake mani also?

 

Why don't you try slightly taller tires so you can stay in fourth gear and not have to rev that high....UNLESS you are making power through 10K rpm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Redline130 &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you try slightly taller tires so you can stay in fourth gear and not have to rev that high....UNLESS you are making power through 10K rpm.</TD></TR></TABLE>

thats a great idea. id do that before stressing the motor.

 

my set up
srp 8:5:1
Eagle h beam rods balanced bottom end
crower stainless valves
crower stage 2 turbo cams
crower 10.000 springs
crower titanium retainers
jg 65mm throttle body
jg vitter x intake
rc 650 injectors
gsport fuel rail
head ported & intake gasket matched
unorthodox crank pulley
msd 6 al blaster 2 col
hondata s200b
t3/t4 57 trim 63hot 50 comp EBAY ****
rs fab top mount
3in exhausts
s4c tranny
obx dif
block gourd
24-8-13 M/T
weld wheels
going in to 5 gear and still terning about 2.000 rpm before the quoter is up
engine stop pulling on the dyno at about 7.500rpm
i thank that's all

 

t3/t4 57 trim 63hot 50 comp EBAY ****

thats your problem right there. you went all out on just about everything and cheaped out big time on the turbo.

 

co sign ^

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MR_EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">t3/t4 57 trim 63hot 50 comp EBAY ****

thats your problem right there. you went all out on just about everything and cheaped out big time on the turbo.</TD></TR></TABLE>

x2 try a .82 hot side. that will make a major difference in where your turbo carries your powerband too.

 

Can we see your dyno sheet?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlowReaction &raquo;</TD></TR><TR><TD CLASS="quote">Can we see your dyno sheet?</TD></TR></TABLE>

i can not verger out how to post pic not fiery good with computers

x2 try a .82 hot side. that will make a major difference in where your turbo carries your powerband too.

i was looking at getting a gt35 or a gt35r. also the preseason that is the
same think it is sc61. but yes that is what i thought the problem was also
i know a lot more about engines than turbos can some one recommend
a place to get a turbo at a good price in the very nare fetcher looking for 600+hp
around 9sec


Modified by crxsir23 at 6:24 AM 2/7/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxsir23 &raquo;</TD></TR><TR><TD CLASS="quote"> i can not verger out how to post pic not fiery good with computers

x2 try a .82 hot side. that will make a major difference in where your turbo carries your powerband too.

i was looking at getting a gt35 or a gt35r. also the preseason that is the
same think it is sc61. but yes that is what i thought the problem was also
i know a lot more about engines than turbos can some one recommend
a place to get a turbo at a good price in the very nare fetcher looking for 600+hp
around 9sec


Modified by crxsir23 at 6:24 AM 2/7/2007</TD></TR></TABLE>

youve been pm'd

 

I'm confused, what kind of motor is this?? LS motors don't turn 10K or even 9K, ever... If it's a vtec motor then it should have been pulling past 7500 when it was stock and you have a bottleneck or it needs more tuning.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD &raquo;</TD></TR><TR><TD CLASS="quote">I'm confused, what kind of motor is this?? LS motors don't turn 10K or even 9K, ever... If it's a vtec motor then it should have been pulling past 7500 when it was stock and you have a bottleneck or it needs more tuning.</TD></TR></TABLE>

agreed but i have seen a few turbo street set up b series flattin out after 7500. i think thats what he means. but i too would like to know, to the op: is your dyno graph flatening out after 7500 or plumiting down?

 

the engine is a jdm b16sir2 on the dyno sheet the power gos downwards at 7500 or 7600rpm **** sucks but cheep turbo it played out at 19psi at only
378hp 275tq

 

Here is a dyno from Evans-Tuning.com that seems comparable to your setup. It's a 9:1 Compression B16 making about the same power. The power flattens after about 7500 but it has stock cams. Like you said maybe it's your turbo, you said your exhaust is 3 inch is your downpipe 3 inch too?

 

No mentions of bore and stroke anywhere in this thread......

I doubt your engine will produce any power after 8500 rpm, but good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">x2 try a .82 hot side. that will make a major difference in where your turbo carries your powerband too.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slomofo &raquo;</TD></TR><TR><TD CLASS="quote">No mentions of bore and stroke anywhere in this thread......
</TD></TR></TABLE>That's because bore and stroke don't mean ****

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slomofo &raquo;</TD></TR><TR><TD CLASS="quote">No mentions of bore and stroke anywhere in this thread......

I doubt your engine will produce any power after 8500 rpm, but good luck. </TD></TR></TABLE>
81.5 bor the stroke is stock think it is 77mm as far a no power after 8500rpm
the b16 has the best crank for high rpm i can not remember the correct wy to say it butt it is something about so Meany feet per revolution or min
down pipe 3in spinning was from suspension not being stiff a enogh <U>my fault</U>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxsir23 &raquo;</TD></TR><TR><TD CLASS="quote">81.5 bor the stroke is stock think it is 77mm as far a no power after 8500rpm
the b16 has the best crank for high rpm i can not remember the correct wy to say it butt it is something about so Meany feet per revolution or min
down pipe 3in spinning was from suspension not being stiff a enogh <U>my fault</U></TD></TR></TABLE>

better you dont say things if your unsrue. the b16b is actually the best for revving. it has to do with a number of things from rs ratio to weight of parts to balanceing of parts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6 &raquo;</TD></TR><TR><TD CLASS="quote">That's because bore and stroke don't mean ****</TD></TR></TABLE>

So you're saying that a longer stroke means nothing when it comes to higher revs?

 

well i figured out to post pic here is my dyno sheet can some one tell me what that bad drop in the hp and tq is also

 

whats the problem? looks like a typical turbo dyno graph. if you want it to keep building like a full out drag car you need a .82 exhuast housing end of story.