Guys, I will have the Dyno graph for you very soon. But here is the update detail. We tune the car a little to get good A/F ratio and raise the fuel pressure a little to give it more fuel. Anyway, at bone stock Auto-SS Prelude, it make 148HP and 124Lbs of torque at the wheel. Pretty miserable consider they Dyno a Prelude Type-SH manual and it put out 162HP and 131Lbs of torque at the wheel.
*OK, now to the turbo upgrade. After tunning and everything, the Auto-SS made 197HP and 167Lbs of torque at the wheel. I was not a pretty number but was not too bad either. The number will definitely be better on a 5-Speed tranny. I will have the graph scan and posted tomorrow. We are going to tune the Ignition tomorrow and try to get more HP out of it. Oh, this is without a FMIC and running only at 6psi of boost. I will do another Dyno tomorrow with more fine tunning.
*We will also put the result after the Intercooler kit and raise it up to 10psi of boost. After that, we will have the 93 prelude si tranny swap and do another Dyno. The longer gear ratio is suppose to be better for Turbo. Anyway, I will update this often. Thanks!!
Yes, this is with AEM Fuel stuff and everything inside. We try to use the E-manage but when we Dyno the car, it had great Air/Fuel ratio so decide it is not necessary. Next on the list is a Twin power from HKS and try to gain a little power to hit 200HP. After that, we will be waiting for the Intercooler release. Well, the number fall short of expectation but we learn that the Auto-SS took a lot of power out of the car. If you want power out of a turbo Prelude, convert to manual. Thanks!!
is the car misfiring? those little gaps in the curve at the top end sometimes indicate bad plugs, wires, or cap/rotor, don't they?
do you have the a/f graph too? that would be of a lot of interest....
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Originally posted by TurboEvo Yes, this is with AEM Fuel stuff and everything inside. We try to use the E-manage but when we Dyno the car, it had great Air/Fuel ratio so decide it is not necessary. Next on the list is a Twin power from HKS and try to gain a little power to hit 200HP. After that, we will be waiting for the Intercooler release. Well, the number fall short of expectation but we learn that the Auto-SS took a lot of power out of the car. If you want power out of a turbo Prelude, convert to manual. Thanks!!
Tony
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some shops plot it that way when they can't get a good signal from the ignition - possibly because of bad wires.
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Originally posted by mr_lude2000 i just noticed that the HP graph is HP vs Speed, not the traditional HP vs RPM.
do you by chance have the latter?
that is also a massive gain in low end TQ (up to 5k rpm).
any extremely noticeable traction problems?
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Hey, I do have the Air/Fuel ratio graph, I will scan it and post it. Also, we change to colder spark plug already and also change to Magnecor wires as well. No miss fire!!
mr_lude2000-
Well, beside from the bad graph, I am not impress with power of the car. It does not feel that fast. However, on first and second gear, I believe there is too much torque. The car has traction problem and really hard to control when I floor it. I must say the turbo kit gain a lot of torue. Also, I like to say the gear ratio on the Auto-SS is horrible for the turbo car.
I agree with 949. Just get a Hondata or maybe even easier the AEM ECU. The Hondata system gets complicated when it comes to Ludes. Hondata works better with older Hondas and Acuras.
i imagine he's referring to the necessity of swapping in an OBDI ecu to go hondata. also, does your statement imply that it will control his ss tranny?
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Originally posted by Hondata The Hondata system works the same way (very well) with any year H22a Prelude.
Doug
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Originally posted by iandyi86 If u can't upgrade the turbo for F-MAx turbo kits because of the manifold, can't u just change the Manifold????
And /w greedy turbos, do they run safe /w stock internals??
well since the fmax kit comes with:
1. manifold
2. turbo
3. intercooler
4. intercooler piping
5. downpipe
6. wastegate
7. blow off valve
8. fuel management
i would not recommend getting the manifold/turbo/downpipe cuz the manifold will only fit the t3/t4B, for the prelude they give you a t3/t4B turbo, and the downpipe is made to fit the turbo and the manifold both..
the turbo that comes with the greddy is safe as long as you boost less than 8 pounds and take the proper precautions with regards to detonation (fuel/timing/etc...)
So a greedy turbo kit can pump out more power then a F-MAx turbo kit RIGHT???
But if u have stock internals and dont want to use more $$$ a F-max is the best thing but if u want to upgrade and have the $$$ greedy is the way RIGHT???
Because F-max gives more HP then a Greedy on stock preludes
Originally posted by iandyi86 So a greedy turbo kit can pump out more power then a F-MAx turbo kit RIGHT???
But if u have stock internals and dont want to use more $$$ a F-max is the best thing but if u want to upgrade and have the $$$ greedy is the way RIGHT???
Because F-max gives more HP then a Greedy on stock preludes
A greddy kit has more potential for more power...so why spend money now on something you won't have to upgrade in the future in case you want to go for more power? The f-max turbo, in my experience is good for quick spools but bad for high end power and has very limited potential for boosting more than 10psi. I don't know much about the greddy kit, but by the looks of things it seems to have similar power to the fmax kit when boosting below 10psi and the greddy turbo can boost up to 20 pounds whereas the fmax turbo is limited to 10 or less. Since stock preludes can't take much more than 9 pounds of boost, going turbo for most of us will require a motor rebuild. The greddy kit is easier to configure for more power on a built motor, whereas the fmax is not.
Hey, I do have the Air/Fuel ratio graph, I will scan it and post it. Also, we change to colder spark plug already and also change to Magnecor wires as well. No miss fire!!
mr_lude2000-
Well, beside from the bad graph, I am not impress with power of the car. It does not feel that fast. However, on first and second gear, I believe there is too much torque. The car has traction problem and really hard to control when I floor it. I must say the turbo kit gain a lot of torue. Also, I like to say the gear ratio on the Auto-SS is horrible for the turbo car.
TurboEvo... it just sounds bad for automatic ss owners to get a Greddy kit...
would you recommend this kit to an automatic then? When you say gear ratio problems do you speculate that the tranny will not last very long running the turbo on 6-7 lbs of boost? I was very much looking forward to the Greddy kit for my prelude, but I want an experienced opinion from first hand...
In my opinion, the Greddy turbo kit has great potential. However, on the Auto-SS, the tranny basically took all of the power. The Auto-SS we have with Greddy turbo kit rocks in the 1st and 2nd gear. However, after that 3rd and 4th gear feel very sluggish and almost does not want to produce anymore power. This is way I said the gear ratio on the Auto tranny is not suitable for turbo cars. Also, there could be a lot of factors too. We are running 6psi right now and without Intercooler, the turbo get hot like hell. The heat shield is already turning gold!! Raising the boost and fine tunning the ignition with HKS Twin power and Greddy E-manage will get us more power. However, it will not solve the gear ratio problem. No matter how much power we make, the 3rd and 4th gear will always slow the car down. We are planning to do a tranny swap after the Intercooler and hopefully get better feel and result out of the prelude. Thanks!!
Hey guys, I did a post on a Dyno run session but no one responed. I need about 30 cars to reserve one day of run. You get about 3 runs and only cost $50. If you want, I can post another meet and we can do it with other clubs like IS300, RSX, Celica, and many others. Let me know and I can host one for you guys. Thanks!!
To be more precise, does your vtec still kick in on the 3rd and 4th gear? In another words after installing the turbo, does your 3rd and 4th gear's performance downgraded or no improvement...?
Originally posted by Skyknight Thanks for clarifying that for me...
To be more precise, does your vtec still kick in on the 3rd and 4th gear? In another words after installing the turbo, does your 3rd and 4th gear's performance downgraded or no improvement...?
thanks again
well, turbo is supposed to drop your low end a bit and improve mid to high end alot...so yeah 3rd and 4th gear will pull much harder...i don't even downshift anymore from 5th when i'm on the highway.
Originally posted by schwett i imagine he's referring to the necessity of swapping in an OBDI ecu to go hondata. also, does your statement imply that it will control his ss tranny?
That's exactly what I was referring to. Personally I think it's easier to just do a plug and play type system instead of having to swap parts back and forth. I'm not sure if Hondata is a stand alone, doesn't it still require the use if the original ECU? I don't hate Hondata or anythng, I'm at the point where I'm fixing to make the big leap and Engine management is important to me. Just weighing info.
Hey, the VTEC still kicks in but I am saying is that, there is turbo lag below 3000rpm. After that, it jumps and then slow down again like around 5500rpm. Also, for some reason, the car feel slow in 3rd and 4th gear. Sometime I start in 2nd, it will very slow. Probably because I am use to drive the Subaru WRX manual but the Prelude feel still sluggish after the turbo. Hopefully the Intercooler and tranny swap will help. Thanks!!
I called Greddy for some inputs... now they are recommending that automatic preludes shouldn't get the kit due to loss of power... last week I called them, they said it should be perfectly fine...
is there any way to situate the problem maintaining automatic ss? Like upgrading the torque converter?
Did you do anything to the SportShiet transmission? I thought the factory SS tranny cannot handle such additional hp and torque? 