Dual Power Adders-Ad a Turbo to my Kenne Bell?
07-18-2007, 11:34 PM
#53
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I do off road driving, plus there is as Mike puts it there are tons of room under the hood. They get a diesel or the V10 Viper motor in these with the radiator and fans I have. I have the extra space that the smaller V8 allows. I will probally have to louver the hood in order to allow the extra heat to escape.
07-19-2007, 12:06 AM
#54
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there is a pontiac grandprix on zzperformance.com that has a supercharger and turbo setup. it uses the supercharger to get off the line and the turbo the rest of the way. it runs 9's last time i saw and it is a fwd v6
07-19-2007, 01:33 AM
#56
Originally Posted by 408 Sleeper
Just got the dyno results. I will be adding the front mounted turbo. I was told that the numbers will be a little low because of the power going thru a transfer case and the large off road tires and wheels.
The results were 445 rwhp and 512 rwtq, pulls to 5200 rpm
The most boost they saw was 8 lbs and that is with the supercharger running 2.8 times engine speed. Timing was 32 degrees under boost and Mike said he could have still added more timing
The bad news is the SC is working way to hard. The air leaving the SC was hitting 270 and while the intercooler was droppping it about 100 degrees, still way to hot. As Mike told me, 270 degrees is almost steam.
Here's the plan:
Slow the supercharger down to 1.8 to 2 times engine speed. This will probally give 4-5 lbs of lag free twin screw boost that I love.
Run a pipe from each long tube header back up into the front of the engine compartment. These would supply a large single turbo. Mike will be consulting with his person a Turbonetics to pick the best turbo for this unique compounded application. It will be mounted high to keep it out of off road water slpash. I'm not sure of the size, but Mike said he would use a 4" down pipe to tie back into my existing 4" single exhaust. The tubro will be set for around 7-8 lbs of boost which compounded with the SC should yeild 15-16 lbs, much lower temps and another 150-175 rwhp.
I'm not sure if a second air to air intercooler will be added between the turbo and the SC, or if that will be nescssary. Mike thinks he can come up with a turbo that will have a very low discharge temp.
I hope that this can be done in the next couple of weeks.
I guess I will have to change my profile name from Sleeper to Turbo-Screwed
The results were 445 rwhp and 512 rwtq, pulls to 5200 rpm
The most boost they saw was 8 lbs and that is with the supercharger running 2.8 times engine speed. Timing was 32 degrees under boost and Mike said he could have still added more timing
The bad news is the SC is working way to hard. The air leaving the SC was hitting 270 and while the intercooler was droppping it about 100 degrees, still way to hot. As Mike told me, 270 degrees is almost steam.
Here's the plan:
Slow the supercharger down to 1.8 to 2 times engine speed. This will probally give 4-5 lbs of lag free twin screw boost that I love.
Run a pipe from each long tube header back up into the front of the engine compartment. These would supply a large single turbo. Mike will be consulting with his person a Turbonetics to pick the best turbo for this unique compounded application. It will be mounted high to keep it out of off road water slpash. I'm not sure of the size, but Mike said he would use a 4" down pipe to tie back into my existing 4" single exhaust. The tubro will be set for around 7-8 lbs of boost which compounded with the SC should yeild 15-16 lbs, much lower temps and another 150-175 rwhp.
I'm not sure if a second air to air intercooler will be added between the turbo and the SC, or if that will be nescssary. Mike thinks he can come up with a turbo that will have a very low discharge temp.
I hope that this can be done in the next couple of weeks.
I guess I will have to change my profile name from Sleeper to Turbo-Screwed
07-19-2007, 02:07 AM
#58
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Originally Posted by Slowhawk
Your better off dumping the Kenne Bell and just use a big Turbo.2 power adders like that won't work well since they will fight each other.
07-19-2007, 06:21 AM
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I am running a BBK Dual 65 mm Throttlebody. It is rated at 1350 cfm. Hopefully I will end up with one of the dual power adders that works, like several examples that have been mentioned.
07-19-2007, 01:42 PM
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Here is some more information on the dyno pulls. Power peaked at 5,000. Supercharger outlet temp 270 and after the intercooler 102
Second run outlet temp 270 after intercooler 180
Third run outlet temp 270 after intercooler 225
The intercooler works as it pulled 168 degrees out the first time. I am going to get rid of the large trans cooler mounted between the intercooler and radiator and go with a remote unit. Also looking at remotely mounting the AC condenser with a fan under the bed. This will greatly improve the airflow through the intercooler and radiator. Now I'm just waiting to hear back on which turbo is to be added. We are shooting for 16-18 lns of boost and 650-675 rwhp. With the transfer case and off road tires sucking out 25-30% that might be hard though.
Second run outlet temp 270 after intercooler 180
Third run outlet temp 270 after intercooler 225
The intercooler works as it pulled 168 degrees out the first time. I am going to get rid of the large trans cooler mounted between the intercooler and radiator and go with a remote unit. Also looking at remotely mounting the AC condenser with a fan under the bed. This will greatly improve the airflow through the intercooler and radiator. Now I'm just waiting to hear back on which turbo is to be added. We are shooting for 16-18 lns of boost and 650-675 rwhp. With the transfer case and off road tires sucking out 25-30% that might be hard though.