T51R SPL Turbo
08-12-07, 07:42 PM
#26
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seriously dude, dont even waste the money on two of those turbos, the people on here are not kidding, they WILLNOT SPOOL. if you want a **** ton of power, get a very large single and be done.
08-12-07, 07:46 PM
#27
Banned. I got OWNED!!!
expect power range from 8k to 11k rpm, and good boost starting from 6k rpm.
You can expect 1400bhp to 1800bhp depending on boost pressure.
08-13-07, 07:47 PM
#31
Darin
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i know i dont need twin of these 1 should be enough, but im wondering. Why wont 2 of them spool, if anyone knows a way to make them spool then plz tell me how. money isnt the problem i just wanna make this work...whats a blow off valve...? 
08-13-07, 07:58 PM
#32
600+rwhp club member
A 2 rotor engine will not give off enough exhaust energy to turn both of those large turbine wheels efficiently at all. 2 SPL turbos are just way too much. 1 is rather large without a full race engine.
08-13-07, 09:04 PM
#33
Banned. I got OWNED!!!
a GT45 works on a 1300cc motor bike engine, Much larger than garrett T51's were used on 1500cc GP motors back in the 1980's *sub 10500rpm motors (for circuit racing with a 6 speed trany). I know of people who were using GT55's on 13B's, i had one here for just such a project over 5 years ago and people copied me on the idea !
You know Honda used TWO RX6 IHI turbo's for the 21psi 2.5bar engines 1.5lt (normal power band for racing engine)..... non of its rocket science you just need to understand that turbo's for racing cars and revs get matched to suit. this is not a street set up where you leave it in 5th to pass a truck on the highway
Two KAI sized turbo's will work fine and the revs will be *normal* not compared to the BS people expect (full spool by 4k rpm) we are talking *racing engines here*, the power band i listed is possible and has been done and the power capacity is there, in a few years time when people catc up they will go gee wonder why no one did that before?
Twin P trim to4's is common place, twin GT35r's are as well and they are NOT suitable turbo's to run the required 4bar boost or more you need to make this power on a small capacity 2.6lt engine........ its not such a head **** its just the sheep have not one ******* idea about turbocharging unless they can copy someone else.
This thread was asked in jest but in reality its more than possible and one day someone may have the ***** to do it and use it the way god intended.
Last edited by RICE RACING; 08-13-07 at 09:13 PM.
08-14-07, 06:44 AM
#34
Senior Member
Any thing is possible. I think rise is rite in the fact that 13b will have enough exhaust to spool two t51 kia turbos..... but its not worth it?
Yes a pair of t51’s will have flow potential of 180-200lbs/min, but you will never reach this flow limit on a 13b engine. It simply dose not have the flow capabilities with realistic rpm levels.
You will just end up having a very laggy 13b that makes the same power as a more responsive single t51 13b setup.
Rule of thumb is 3:1density ratio is max supplied by a good compressor, A single hks t51 spl compressor will already be very close to this level at 45psi on 13b. You probably need 6:1 ratio or higher on 13b to reach flow levels of 180lbs/min with rpm below 9000.
So unless you intend to run 1800rpm there will be no point using a pair of turbos that big.
The only way I see possible running two turbo system capable of supporting massive flow on 13b is by using staged set up.
A single large 1800hp turbo 2.5-3:1 density ratio at say 40-45psi feeding a second smaller turbo at 2.5-3:1 density ratio resulting in aprox 7.5:1 final ratio with perhaps 110-135psi measured manifold pressure.
Only then I think it would be possible to flow required lbs/min to support 1800hp below 9000rpm on 13b.
Hands up who thinks mazda has built a 13b strong enough to handle this?
Yes a pair of t51’s will have flow potential of 180-200lbs/min, but you will never reach this flow limit on a 13b engine. It simply dose not have the flow capabilities with realistic rpm levels.
You will just end up having a very laggy 13b that makes the same power as a more responsive single t51 13b setup.
Rule of thumb is 3:1density ratio is max supplied by a good compressor, A single hks t51 spl compressor will already be very close to this level at 45psi on 13b. You probably need 6:1 ratio or higher on 13b to reach flow levels of 180lbs/min with rpm below 9000.
So unless you intend to run 1800rpm there will be no point using a pair of turbos that big.
The only way I see possible running two turbo system capable of supporting massive flow on 13b is by using staged set up.
A single large 1800hp turbo 2.5-3:1 density ratio at say 40-45psi feeding a second smaller turbo at 2.5-3:1 density ratio resulting in aprox 7.5:1 final ratio with perhaps 110-135psi measured manifold pressure.
Only then I think it would be possible to flow required lbs/min to support 1800hp below 9000rpm on 13b.
Hands up who thinks mazda has built a 13b strong enough to handle this?
Last edited by bobybeach; 08-14-07 at 07:09 AM.
08-14-07, 03:37 PM
#35
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08-14-07, 08:26 PM
#36
Darin
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Any thing is possible. I think rise is rite in the fact that 13b will have enough exhaust to spool two t51 kia turbos..... but its not worth it?
Yes a pair of t51’s will have flow potential of 180-200lbs/min, but you will never reach this flow limit on a 13b engine. It simply dose not have the flow capabilities with realistic rpm levels.
You will just end up having a very laggy 13b that makes the same power as a more responsive single t51 13b setup.
Rule of thumb is 3:1density ratio is max supplied by a good compressor, A single hks t51 spl compressor will already be very close to this level at 45psi on 13b. You probably need 6:1 ratio or higher on 13b to reach flow levels of 180lbs/min with rpm below 9000.
So unless you intend to run 1800rpm there will be no point using a pair of turbos that big.
The only way I see possible running two turbo system capable of supporting massive flow on 13b is by using staged set up.
A single large 1800hp turbo 2.5-3:1 density ratio at say 40-45psi feeding a second smaller turbo at 2.5-3:1 density ratio resulting in aprox 7.5:1 final ratio with perhaps 110-135psi measured manifold pressure.
Only then I think it would be possible to flow required lbs/min to support 1800hp below 9000rpm on 13b.
Hands up who thinks mazda has built a 13b strong enough to handle this?
Yes a pair of t51’s will have flow potential of 180-200lbs/min, but you will never reach this flow limit on a 13b engine. It simply dose not have the flow capabilities with realistic rpm levels.
You will just end up having a very laggy 13b that makes the same power as a more responsive single t51 13b setup.
Rule of thumb is 3:1density ratio is max supplied by a good compressor, A single hks t51 spl compressor will already be very close to this level at 45psi on 13b. You probably need 6:1 ratio or higher on 13b to reach flow levels of 180lbs/min with rpm below 9000.
So unless you intend to run 1800rpm there will be no point using a pair of turbos that big.
The only way I see possible running two turbo system capable of supporting massive flow on 13b is by using staged set up.
A single large 1800hp turbo 2.5-3:1 density ratio at say 40-45psi feeding a second smaller turbo at 2.5-3:1 density ratio resulting in aprox 7.5:1 final ratio with perhaps 110-135psi measured manifold pressure.
Only then I think it would be possible to flow required lbs/min to support 1800hp below 9000rpm on 13b.
Hands up who thinks mazda has built a 13b strong enough to handle this?
Last edited by vash999; 08-14-07 at 08:43 PM.
08-15-07, 08:25 PM
#38
Savanna Rx-7
all of the forum members need to pull their collective panties out of their P*$$y cracks.
you are being trolled by some 13 year old with green colored baby crap for brains
hell anything can be done, if it is worth doing or not is another story entirely... staged compressors (like bobby mentioned) have been used for years on diesal pulling tractors and the likes.
you guys need to learn to ignore the baby trolls that wander around here so much and concentrate more on building and inovating on what we have
kenn
you are being trolled by some 13 year old with green colored baby crap for brains
hell anything can be done, if it is worth doing or not is another story entirely... staged compressors (like bobby mentioned) have been used for years on diesal pulling tractors and the likes.
you guys need to learn to ignore the baby trolls that wander around here so much and concentrate more on building and inovating on what we have
kenn
08-15-07, 08:48 PM
#39
That's just his way of expressing his point of view.
You're lucky because if he really didn't like you he would have branded you as a '****'!
08-15-07, 09:04 PM
#40
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08-15-07, 09:07 PM
#41
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but on a serious note, why try to do this with a 13b? dotn you think it would be easier to get the needed power out of something like an EXTREMELY agressive street ported 20b engine with hardened stationary gears and the works? sure it might be more expensinve, but i think it would be more worth the money.
and instead of running twin 51r's (which is even insane to begin with) choose a slightly smaller turbo, or even gt40's would work. wont be as much power, but it should be easier to get at in my point of view.
08-16-07, 03:32 PM
#43
Darin
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may i remind you children that this thread is for getting info on turbos, if you wanna flame eachother pm or make your own thread cause i dont want this locked cause you kids with your ricers think you know everything about the automotive world. thankyou to everyone whos given me information on turbos so far, but the T51R SPL Turbo is gonna be put in a 93 rx7 maybe even 2 of em. again is there anyone out there that has information on what type of blow off valves ill need, what kind of injectors ill need, carbs, and equipment in general?
08-16-07, 03:44 PM
#44
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you'll need to get two Holley 650 cfms, one for each turbo.
get 6x1680 cc injectors, 2 primaries, 2 secondaries, and 2 additional to support that kind of airflow. Make sure to position them close enough to the carb to get the right tumbling effect.
you don't need a BOV.
get 6x1680 cc injectors, 2 primaries, 2 secondaries, and 2 additional to support that kind of airflow. Make sure to position them close enough to the carb to get the right tumbling effect.
you don't need a BOV.
08-16-07, 03:57 PM
#45
For someone that doesn't know everything about the automotive world it would be best not to ask for info the way you have. It would be much better to search and at least find a little bit of info before asking for someone to tell you in one thread exactly what you need to buy and do. If you are honestly interested in building a serious machine read up on it. There are lots of people on this very forum that have spent tons of their hard earned time and went out of their way and help us all out. No one is going to give you the time of day until you prove to them that you are not wasting their time. Try and ask more direct questions that have straight forward answers not just "tell me what to do to make XXX HP". If you do a little research and don't come off as cocky you will get a lot more help. And most importantly don't ask questions like this "what type of blow off valves ill need, what kind of injectors ill need, carbs, and equipment in general?"
08-16-07, 03:58 PM
#46
Darin
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thank you sir! but how do you know all this? is there some place i can research this? no offense but your limited by how much your teacher knows, you know? so i wanna learn how to do it all myself cause i got all the tools since i work in a shop but i need to know what to do and take out n **** so if you even have a place where i can go to research this then that would be awsome
08-16-07, 03:59 PM
#47
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For someone that doesn't know everything about the automotive world it would be best not to ask for info the way you have. It would be much better to search and at least find a little bit of info before asking for someone to tell you in one thread exactly what you need to buy and do. If you are honestly interested in building a serious machine read up on it. There are lots of people on this very forum that have spent tons of their hard earned time and went out of their way and help us all out. No one is going to give you the time of day until you prove to them that you are not wasting their time. Try and ask more direct questions that have straight forward answers not just "tell me what to do to make XXX HP". f you do a little research and don't come off as cocky you will get a lot more help. And most importantly don't ask questions like this "what type of blow off valves ill need, what kind of injectors ill need, carbs, and equipment in general?"
