So...you wanna go turbo?

mike@crosbys · Post by **mike@crosbys** » Tue Mar 20, 2007 3:39 pm

hmm, if i decide to keep the DRLA i might have to look into that. The dell isnt half as bad at cloggin the idle jets as the weber is. Or not in my experience at least.

scott the viking · Post by **scott the viking** » Mon Mar 26, 2007 6:21 am

For those of you thinking a draw through would be right for them (with a smaller motor). This would be good to keep an eye on.

http://cgi.ebay.com/ebaymotors/ws/eBayI ... 723&rd=1,1

vin · Post by **vin** » Wed Mar 28, 2007 11:36 am

could that system be changed for a blow through?

What is water injection used for???

scott the viking · Post by **scott the viking** » Wed Mar 28, 2007 12:17 pm

vin wrote:could that system be changed for a blow through?

What is water injection used for???

Yes and no, the turbo, the header and a few other parts can be used for blow through. But unless you wanted to do a massive amount of fab and machine work, the kit will need a different carb(s) intake(s) etc.

Water injection....
Water/alcohol injection does a couple of things. One is it will increase the octane rating of the fuel you are running, which can prevent detonation. Another thing is it cools down the combustion chamber, so you have fewer hot spots, those can also cause detonation. There were a few cars cars that came out of the factory with water injection, but most of that stopped with the use of inter-coolers. Many (myself included) use an inter-cooler with water/alcohol injection. The cooler charge really helps.
In an ideal world, you would want your car to run a HUGE amount of compression and have none of the ill affects of it. So when using water injection or high octane fuels...you are moving up the amount of compression you can safely use. It's more complex than that...but that's the general idea.

Post by **david58** » Fri Mar 30, 2007 2:28 pm

How do you mathematically figure out if a turbo is the right size? I found the following pic on this page.
http://wwwrsphysse.anu.edu.au/~amh110/turbo_page.htm
It doesn't say anything about how to tell if a turbo is too small or too big.

scott the viking · Post by **scott the viking** » Fri Mar 30, 2007 2:58 pm

Well....that can get a little complicated and it requires knowing how to read compressor maps and some math. It's not too hard...but it is a VERY long winded explanation and I am very short on time right now. I will explain this to you guys...So if you can do me a favor David, it will save me some time. Go find and then post a compressor map for a....TO4B turbo and when I get a chance I will explain how CFM, engine cubic inches, volumetric efficiency, density ratio, pounds of air, atmospheric pressure, rpm and pounds of boost all tie into where to look on a compressor map.
Most of you will not need this info...but might be nice to know.

bajaherbie · Post by **bajaherbie** » Fri Mar 30, 2007 3:40 pm

david, a few of us are waiting on the TO4B compressor map.......

Post by **david58** » Fri Mar 30, 2007 4:17 pm

bajaherbie wrote:david, a few of us are waiting on the TO4B compressor map.......

Well I pmed it to Scott pay attention bajaherbie.

mike@crosbys · Post by **mike@crosbys** » Fri Mar 30, 2007 5:54 pm

a T3 off a turbocoupe fit a low compression 1776 and a high comp 2110 fine

It was a little slow to build boost on the 1776 and built 8 lbs at idle in the 11.5:1 2110 but other than that

65baja · Post by **65baja** » Sat Mar 31, 2007 12:24 am

Well....that can get a little complicated and it requires knowing how to read compressor maps and some math. It's not too hard...but it is a VERY long winded explanation and I am very short on time right now. I will explain this to you guys...So if you can do me a favor David, it will save me some time. Go find and then post a compressor map for a....TO4B turbo and when I get a chance I will explain how CFM, engine cubic inches, volumetric efficiency, density ratio, pounds of air, atmospheric pressure, rpm and pounds of boost all tie into where to look on a compressor map.
Most of you will not need this info...but might be nice to know

to much thinking gives me a headache

i hope you can explain this in a manner even i can understand ive looked over flow charts before and all the math envolved and im lost.

i found a turbo a freind has at work off of an 80's ply. duster i think im just going to try it and see what hapens

Joe

mike@crosbys · Post by **mike@crosbys** » Sat Mar 31, 2007 11:05 am

65baja wrote:
Well....that can get a little complicated and it requires knowing how to read compressor maps and some math. It's not too hard...but it is a VERY long winded explanation and I am very short on time right now. I will explain this to you guys...So if you can do me a favor David, it will save me some time. Go find and then post a compressor map for a....TO4B turbo and when I get a chance I will explain how CFM, engine cubic inches, volumetric efficiency, density ratio, pounds of air, atmospheric pressure, rpm and pounds of boost all tie into where to look on a compressor map.
Most of you will not need this info...but might be nice to know
to much thinking gives me a headache i hope you can explain this in a manner even i can understand ive looked over flow charts before and all the math envolved and im lost.

i found a turbo a freind has at work off of an 80's ply. duster i think im just going to try it and see what hapens

Joe

good call sir

Class 11 streeter · Post by **Class 11 streeter** » Sat Mar 31, 2007 7:58 pm

Scott, I know this thread is supposed to be "budget" based, but if one were to slip a stroker crank into their stock bore budget turbo motor, would the gain be greater than a simple big bore kit?

scott the viking · Post by **scott the viking** » Sat Mar 31, 2007 8:04 pm

Class 11 streeter wrote:Scott, I know this thread is supposed to be "budget" based, but if one were to slip a stroker crank into their stock bore budget turbo motor, would the gain be greater than a simple big bore kit?

Short answer...absolutely.

I have not forgotten about the compressor map thing guys...just short on time lately.

tuff_puff · Post by **tuff_puff** » Sat Mar 31, 2007 11:40 pm

scott the viking wrote:
Class 11 streeter wrote:Scott, I know this thread is supposed to be "budget" based, but if one were to slip a stroker crank into their stock bore budget turbo motor, would the gain be greater than a simple big bore kit?
Short answer...absolutely.

I have not forgotten about the compressor map thing guys...just short on time lately.

he has been getting ready for his beauty pagent, Do you guys have any idea how long it takes to shave a back like that!

Class 11 streeter · Post by **Class 11 streeter** » Sun Apr 01, 2007 6:40 am

tuff_puff wrote:he has been getting ready for his beauty pagent, Do you guys have any idea how long it takes to shave a back like that!

Just need the right tool: