Turbocharging a bonneville?
02-19-2003, 10:58 PM
#42
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I am unsure how I want to do the turbo kit. I am getting the pieces and worrying more about setting up the exhaust manifolds in relation to cost than the oil lines. You can run about 5-6lbs into the stock computer and it will compensate for it. Above that a FMU is required and above that larger injectors/fuel pump and a computer retune.
02-19-2003, 11:18 PM
#43
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Originally Posted by 99BonnevilleSE
Bigfunkytown -
You can run a turbo off one side of the exhaust, but there are many problems. You have one side of the engine that is freeflowing and the other side with cork. And no cars or diesels do that off of one side. No engine runs off one side because that is wasted exhaust that could be used for spooling the turbo. And superchargers getting instant power is not necessairly true. A roots or whipple will have instant power. A centrifgal (which is the compressor side of a turbo basically) makes boost at higher rpm'*. For the computer and fuel system, basically the easiest way is to add 2 large injectors with a controller in conjunction with the stock injectors. So the stock computer controls the stock injectors and you have your seperate unit control the other 2 for the extra fuel delivery. The trick is not to use stock parts because they are not designed for that abuse. You can run more than 5 lbs of boost, just add an intercooler, heat is the enemy that'* why stock you could actually really only do 7-8lbs. But with an intercooler you can up it to around 10lbs. Having to change out your radiator is not really necessary with doing this. Only in certain cases where you live in hot enviornments. Like Texas for example.
Yes keep things simple, but also having the right tools.
You can run a turbo off one side of the exhaust, but there are many problems. You have one side of the engine that is freeflowing and the other side with cork. And no cars or diesels do that off of one side. No engine runs off one side because that is wasted exhaust that could be used for spooling the turbo. And superchargers getting instant power is not necessairly true. A roots or whipple will have instant power. A centrifgal (which is the compressor side of a turbo basically) makes boost at higher rpm'*. For the computer and fuel system, basically the easiest way is to add 2 large injectors with a controller in conjunction with the stock injectors. So the stock computer controls the stock injectors and you have your seperate unit control the other 2 for the extra fuel delivery. The trick is not to use stock parts because they are not designed for that abuse. You can run more than 5 lbs of boost, just add an intercooler, heat is the enemy that'* why stock you could actually really only do 7-8lbs. But with an intercooler you can up it to around 10lbs. Having to change out your radiator is not really necessary with doing this. Only in certain cases where you live in hot enviornments. Like Texas for example.
Yes keep things simple, but also having the right tools.Just thought I would let you know.
Did I forget to menition that it is an Inline-6 engine configuration???
02-19-2003, 11:30 PM
#44
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Ummm... if its inline it will be run from one side only...... Inline is going to have intake on one side and exhaust on the other...... Except a few inline sixes throughout history. We have a V6 so there are 2 sides for the exhaust to come from. An I6 is going to have one sie setup for the intake and one side for the exhaust.
02-19-2003, 11:37 PM
#45
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Originally Posted by 99BonnevilleSE
Ummm... if its inline it will be run from one side only...... Inline is going to have intake on one side and exhaust on the other...... Except a few inline sixes throughout history. We have a V6 so there are 2 sides for the exhaust to come from. An I6 is going to have one sie setup for the intake and one side for the exhaust.
also how much would a set of those Taylor wires cost me???
02-20-2003, 01:08 AM
#46
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Well could you add a zenerdiode On the airflow sensor and then add a 7th injector like a cold start injector off a old saab if you wanted more boost thatn 5. Not that many here would go much over 5 but would that be a option.
02-20-2003, 01:36 AM
#47
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Yes, I know of one person who did a turbo kit on a Series II N/A engine and he added 2 fuel injectors for the extra fuel requirements. He is running like 10psi of boost if I remember correctly. So it is possible.
02-20-2003, 11:53 AM
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would there be any way to have the fule system changed over to a direct-injection. With this you could run a little more compression and boost along with better fule efficiency and cuts down emissions
02-20-2003, 11:16 PM
#49
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Torbo header questions
For the ADTR kit, I assume that the turbo is placed behind the engine with a collector for all 6 cylinders going into it (actually a 2 into 1 from the exhaust headers), right?
I come from the sr20 neighborhood and we use t25 and t28 sizes for 2 liter street cars putting ~250 hp to the wheels, so a T3 sized turbo seems small for a 3.8 to me, but obviously spool up is damn quick.
Coming from that strain of thought, and someone somewhere wondering about a twin turbo set up, would it be possible (and not really really hard to set-up) a twin turbo (nonsequential) with two smaller T25 sized junkyard turbos running one off the front and one off the back, 3 cylinders each, then maybe up to a small air-water intercooler on top and into the TB?
Just a monkey thought, maybe the exhaust work would be easier, but the intake side would be somewhat difficult and boost control and such might be complicated, but hey, two small turbos, spooling fast and effectively boosting 1.9 liters each might be fun.
I come from the sr20 neighborhood and we use t25 and t28 sizes for 2 liter street cars putting ~250 hp to the wheels, so a T3 sized turbo seems small for a 3.8 to me, but obviously spool up is damn quick.
Coming from that strain of thought, and someone somewhere wondering about a twin turbo set up, would it be possible (and not really really hard to set-up) a twin turbo (nonsequential) with two smaller T25 sized junkyard turbos running one off the front and one off the back, 3 cylinders each, then maybe up to a small air-water intercooler on top and into the TB?
Just a monkey thought, maybe the exhaust work would be easier, but the intake side would be somewhat difficult and boost control and such might be complicated, but hey, two small turbos, spooling fast and effectively boosting 1.9 liters each might be fun.
02-21-2003, 01:50 AM
#50
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As far as a twin turbo setup does I dont think the slight benifits will end up being that much greater. Generally twin turbos really shine when the engine has flow capability of 300cfm (180cid). But two smaller turbos will slightly cut turbo lag and allow better high end balance. The problems with twin turbos is matching the wastgates and 2 extra oil lines instead of one. As far as the ts being to small for the bonneville engine I think its a tad undersized but I dont think its gonna hinder anyone from reaching their engines max potential here. I dont think many people here are gonna run their turbo much over 10lbs of boost. I also think anybody wanting to go through with a turbo should really think about intercoolers and how they want to use them. I strongly reccomend using an intercooler not as a performance item but a safety item. The twin turbo idea is good but its more for the 5.0 litre ford guys. They do love the twin turbos.