What turbo for 400whp on 91 octane?
#1
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What turbo for 400whp on 91 octane?
Is there any turbo out there that could put down 400whp and around 200lbs.tq @3,000-3,200RPM on 91 octane?
I know someone is going to say something about going to a Florida dyno and so on hahahah. So for a reference I am looking for 400whp on a dyno that reads around 230whp on a stock Evo X.
We do have 94 octane around here (only a handful of stations in the city) but it is with a 10% Ethanol blend which makes it more along the lines of a true 92 octane. I have also found I get worse gas milage out of the 94 than I do when I use 91 with no Ethanol and I use the Evo a fair bit on the highway. Some local tuners I have talked with have found they can make almost the same power with Shell 91 as our Husky 94.
Either way I will end up getting a tune with the 94 as well but I would like to try and make 400whp with 91 and just be done with trying to time my fill ups when I am close to a station with 94 and get away from switching my maps just for the highway portion where all I can get is 91 than switching back to the 94/92 maps when I get to the next city that I will be in for the next week or so.
Modifications right now making 337hp with 92 octane on COBBs dyno are
- ATP Turbo inlet pipe
- Password JDM intake box
- UICP
- AGP Intercooler
- Synapse DV
- Grimspeed 3 port boost solenoid
- Perrin Catback with test pipe
Modifications for 400whp (injectors/pump are a given)
- Turbo
- AMS downpipe
- Cams/Springs (Only if I absolutely have to)
I know someone is going to say something about going to a Florida dyno and so on hahahah. So for a reference I am looking for 400whp on a dyno that reads around 230whp on a stock Evo X.
We do have 94 octane around here (only a handful of stations in the city) but it is with a 10% Ethanol blend which makes it more along the lines of a true 92 octane. I have also found I get worse gas milage out of the 94 than I do when I use 91 with no Ethanol and I use the Evo a fair bit on the highway. Some local tuners I have talked with have found they can make almost the same power with Shell 91 as our Husky 94.
Either way I will end up getting a tune with the 94 as well but I would like to try and make 400whp with 91 and just be done with trying to time my fill ups when I am close to a station with 94 and get away from switching my maps just for the highway portion where all I can get is 91 than switching back to the 94/92 maps when I get to the next city that I will be in for the next week or so.
Modifications right now making 337hp with 92 octane on COBBs dyno are
- ATP Turbo inlet pipe
- Password JDM intake box
- UICP
- AGP Intercooler
- Synapse DV
- Grimspeed 3 port boost solenoid
- Perrin Catback with test pipe
Modifications for 400whp (injectors/pump are a given)
- Turbo
- AMS downpipe
- Cams/Springs (Only if I absolutely have to)
Last edited by Freebs; Nov 13, 2011 at 01:49 AM.
#2
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I hit 400whp at Cobb on Shell 93-octane with the MAP EF2 turbo with stock cams and a ported exhaust manifold. The EF2 + cams or a tubular exhaust manifold would easily hit 400+ on 91-octane.
Instant spool and response too, it's a great street turbo.
https://www.evolutionm.net/forums/ev...-pump-gas.html
Instant spool and response too, it's a great street turbo.
https://www.evolutionm.net/forums/ev...-pump-gas.html
Last edited by Kracka; Nov 13, 2011 at 08:15 AM.
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I hit 400whp at Cobb on Shell 93-octane with the MAP EF2 turbo with stock cams and a ported exhaust manifold. The EF2 + cams or a tubular exhaust manifold would easily hit 400+ on 91-octane.
Instant spool and response too, it's a great street turbo.
https://www.evolutionm.net/forums/ev...-pump-gas.html
Instant spool and response too, it's a great street turbo.
https://www.evolutionm.net/forums/ev...-pump-gas.html
So you think if I just went to a set of cams OR tubular manifold I could make 400whp on 91? If I could get away without opening up the engine at all and just do the manifold I would go for that. I don't want to open up the engine at all if I could get away with it (ahaha unless the turbo does it for me). With this car I have told my self 1000 times that I would only go to what the stock internals can handle and call it a day as I have had the headaches of going past that point with a bunch of my other cars even when professionally done.
Last edited by Freebs; Nov 13, 2011 at 12:35 PM.
#5
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So you think if I just went to a set of cams OR tubular manifold I could make 400whp on 91? If I could get away without opening up the engine at all and just do the manifold I would go for that. I don't want to open up the engine at all if I could get away with it (ahaha unless the turbo does it for me). With this car I have told my self 1000 times that I would only go to what the stock internals can handle and call it a day as I have had the headaches of going past that point with a bunch of my other cars even when professionally done.
#7
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Surprised you are not considering HKS 7460 Evo X kit.
It may come a hair short of 400whp on 91 w stock cams but can we even tell 10-20 whp at that level?
We surely can appreciate immediate spool, virtually no lag compared to stock.
CBRD BBK X will give you about exactly 400whp on 91 octane, or really close with stock cams, but with lag unlike stock or HKS.
Cams are very expensive to install on X, I would not spend money on them if you are competing with the car.
It may come a hair short of 400whp on 91 w stock cams but can we even tell 10-20 whp at that level?
We surely can appreciate immediate spool, virtually no lag compared to stock.
CBRD BBK X will give you about exactly 400whp on 91 octane, or really close with stock cams, but with lag unlike stock or HKS.
Cams are very expensive to install on X, I would not spend money on them if you are competing with the car.
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#8
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Surprised you are not considering HKS 7460 Evo X kit.
It may come a hair short of 400whp on 91 w stock cams but can we even tell 10-20 whp at that level?
We surely can appreciate immediate spool, virtually no lag compared to stock.
CBRD BBK X will give you about exactly 400whp on 91 octane, or really close with stock cams, but with lag unlike stock or HKS.
Cams are very expensive to install on X, I would not spend money on them if you are competing with the car.
It may come a hair short of 400whp on 91 w stock cams but can we even tell 10-20 whp at that level?
We surely can appreciate immediate spool, virtually no lag compared to stock.
CBRD BBK X will give you about exactly 400whp on 91 octane, or really close with stock cams, but with lag unlike stock or HKS.
Cams are very expensive to install on X, I would not spend money on them if you are competing with the car.
#11
i would take in consideration what spdracerut is suggesting, on a gt3071r i made 425hp and 395lbs at 21pounds of boost with 93octane on mustang dyno at about 4000rpms . calculatin on dyno jet would be around 520hp making it a difference of about 18%. i say 400hp would be no problem.
Last edited by vics(evo8); Nov 13, 2011 at 08:08 PM.
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