Why do my Non-Sequental twins spool like a T-88? :(
#1
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Why do my Non-Sequental twins spool like a T-88? :(
I have a newly rebuilt Judge ITO Ported motor (105 Compression both rotors), full 3" exhaust (HKS DP, Rx-7 Store MP, Apexi Dual N1 CB), K&N Intakes. the turbo was ported in the wastegate, prespool and gasket matched to the manifold. I dont see 7 lbs of boost till 4500RPM. I m 99% sure i dont have any vacuum leaks. the car does idle pretty well.
ANY IDEAS WHAT COULD BE WRONG?
ANY IDEAS WHAT COULD BE WRONG?
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oh and I forgot to mention that if i give it WOT and rev it to 6000+RPM when I let off it Smokes oil for 5 to 10 seconds or until I get back on the gas more than 50%. Not sure yet but it seams like it is the oil seal on the second turbo. It does not do it if i give it WOT and shift before 5500RPM or less.
V8 Conversion is looking sooo good LOL J/K!
V8 Conversion is looking sooo good LOL J/K!
#3
Original Gangster/Rotary!
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My non-sequential BNRs give me 10 psi by 4000 and 16 psi by 4500. Not as good as some small single setups, but oodles better than what you're dealing with. Sounds like the motor isnt the problem, so best to leave pistons out of it....consider a different/newer/better turbo setup
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My twins had the Pettit 8% increase mod to them and with my self done full non-seq setup would hit 14.5psi by 4500 rpm. Either your non-seq setup is not well done or your turbos are weak.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
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Originally Posted by cewrx7r1
My twins had the Pettit 8% increase mod to them and with my self done full non-seq setup would hit 14.5psi by 4500 rpm. Either your non-seq setup is not well done or your turbos are weak.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
I want a single Soooo bad! I was eyeing the GT35R kit in a T4 Footprint but now that I see the 500R, it really seams like a soar Dick, you can't beat it.
#9
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Originally Posted by cewrx7r1
My twins had the Pettit 8% increase mod to them and with my self done full non-seq setup would hit 14.5psi by 4500 rpm. Either your non-seq setup is not well done or your turbos are weak.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
I now run the A-Spec GT35R T3 setup and hit 15.5 PSI at 3600rpm.
I plan to go back to the dyno with the current setup and see if the turbos will put down 450, I am sure that the custom rear turbo inlet pipe I got from you will help
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Bryan (BNR) told me got about 15 psi at 3800 rpm on his Stage 2s, which is what I will be running (very shortly), as soon as he sends it back to me
he also said he made 412 rwhp and 360 ft-lbs at 17 psi on the Stage 2s
he also said he made 412 rwhp and 360 ft-lbs at 17 psi on the Stage 2s
#12
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Originally Posted by Improved FD
Bryan (BNR) told me got about 15 psi at 3800 rpm on his Stage 2s, which is what I will be running (very shortly), as soon as he sends it back to me
he also said he made 412 rwhp and 360 ft-lbs at 17 psi on the Stage 2s
he also said he made 412 rwhp and 360 ft-lbs at 17 psi on the Stage 2s
ecarver, can you explain the location of the ground you were missing? hell, maybe I am having the same problem
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Originally Posted by GoodfellaFD3S
what exactly are the stage 2s? with the 'old' bnr naming scheme they were larger compressor wheels without the dynamic seal.
#14
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Originally Posted by Improved FD
yep
http://www.bnrturbos.com/3rdGen.htm
You may want to consider the newer version, for all of the benefits listed in the thread. You're getting new CHRAs instead of rebuilt turbos.
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in hindsight, I prob would have gone single or the new stage 3s, but I got a pretty good deal on these and I'm already well down the path
hopefully I can at least get in the 370 hp range with good torque #s, that's all I need/want
hopefully I can at least get in the 370 hp range with good torque #s, that's all I need/want
#16
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rich,
I relocated the battery to the back and the ground wire was attached from the battery to the rear strut tower bar on top of the bar. apparently the bolts float between the hole and thats exactly what it did, over the corse of a few weeks it eventually lost contact witht the hole arround it.
I relocated the battery to the back and the ground wire was attached from the battery to the rear strut tower bar on top of the bar. apparently the bolts float between the hole and thats exactly what it did, over the corse of a few weeks it eventually lost contact witht the hole arround it.
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I just had a sinilar problem with mine in nonseq. form not spooling until after 5 grand. It was the precontrol flapper not tied off. the previous owner said it was welded... which it wasnt. check your seq-to-nonseq. conversion... make sure its all done right. mine working correctly now with a 2 mm leak from a warped manifold (between turbo and motor) still spools all the way before 3500 rpms.
#19
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Originally Posted by ecarver2
rich,
I relocated the battery to the back and the ground wire was attached from the battery to the rear strut tower bar on top of the bar. apparently the bolts float between the hole and thats exactly what it did, over the corse of a few weeks it eventually lost contact witht the hole arround it.
I relocated the battery to the back and the ground wire was attached from the battery to the rear strut tower bar on top of the bar. apparently the bolts float between the hole and thats exactly what it did, over the corse of a few weeks it eventually lost contact witht the hole arround it.
#20
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Originally Posted by internal comsucktion engi
"I have a newly rebuilt Judge ITO Ported motor"
^^all i can say is good luck with that....
^^all i can say is good luck with that....
#21
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Originally Posted by internal comsucktion engi
"I have a newly rebuilt Judge ITO Ported motor"
^^all i can say is good luck with that....
^^all i can say is good luck with that....
wow, thanks for wasting my time on reading your post.
#22
GorillaRaceEngineering.co
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Originally Posted by GoodfellaFD3S
you can't leave us hanging like that man, what's the story?
because hes on the forum) but.... i will say ive been working on rotaries for a long
time now and have seen a few of the judges motors.... and yes he is a good RACE
ENGINE builder! his motors have NO longevity, the ports are too big and yes they
commonly hang side seals because of it period! and dont get me started on the
way that he runs his business.... i guess to each his on but i would NOT recommend
his motors to anyone at least not for street use! (IMHO)
~Jonathan
#25
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Originally Posted by jpandes
I see 8 psi by 3000 RPM and 15 psi by 3600-3800 rpm with my stock twins converted to non-sequential the Po' man's way.