separating fiction from reality... a couple of days on the DYNO
TB elbow
here is my setup for that factory FD elbow,pic, i personally felt it favored the outside flow to the TB.
so i made this piping and plenum box ,that has a unique interior air horn into the TB.
water to air as per-usual stuff, bar and plate core.
best part is great response and mid range torque, turbo is and old T4 diesel unit, so top end suffers some on air flow.
NOW this all happened 10yrs ago. still runs great, but i dont beat on it like i used to.
Ron
HEY whats goin on ,,no attach pix??
so i made this piping and plenum box ,that has a unique interior air horn into the TB.
water to air as per-usual stuff, bar and plate core.
best part is great response and mid range torque, turbo is and old T4 diesel unit, so top end suffers some on air flow.
NOW this all happened 10yrs ago. still runs great, but i dont beat on it like i used to.
Ron
HEY whats goin on ,,no attach pix??
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
ran into a snag today. i am running my one piece NRS ceramic apex seals and found only 2.4 and 2.7 thou clearance to the housings... need min of 3.5. so they are two day to Edmonton where Sven will take a thou or two off their length. this also presents an opportunity to custom set them to each housing.
they may be back friday or at the latest monday. the dyno and turbos are rusting
oh well.
they may be back friday or at the latest monday. the dyno and turbos are rusting

oh well.
ran into a snag today. i am running my one piece NRS ceramic apex seals and found only 2.4 and 2.7 thou clearance to the housings... need min of 3.5. so they are two day to Edmonton where Sven will take a thou or two off their length. this also presents an opportunity to custom set them to each housing.
they may be back friday or at the latest monday. the dyno and turbos are rusting
oh well.
they may be back friday or at the latest monday. the dyno and turbos are rusting

oh well.
Good Luck with the build.
Barry
ran into a snag today. i am running my one piece NRS ceramic apex seals and found only 2.4 and 2.7 thou clearance to the housings... need min of 3.5. so they are two day to Edmonton where Sven will take a thou or two off their length. this also presents an opportunity to custom set them to each housing.
they may be back friday or at the latest monday. the dyno and turbos are rusting
oh well.
they may be back friday or at the latest monday. the dyno and turbos are rusting

oh well.
If you send me the turbos Ill put them on my own car and get it on the dyno this weekend
It'll provide you with another angle for comparison.
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
dropped my motor off at Beyond Redline today. it will be in the car tomorrow and i should be able to finish it up thursday.
looks like we may be able to directly log into the dyno much of what i log thru the Datalogit
auxiliaries which will allow better data sharing in the thread.
howard
looks like we may be able to directly log into the dyno much of what i log thru the Datalogit
auxiliaries which will allow better data sharing in the thread.
howard
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
i will be at the Texas Mile as a very interested spectator.... schmoozing the the tech guys and looking under hoods
in two weeks.
i will be at the track from sun up to sun down saturday. i have a room fri night in Victoria.
wouldn't it be great to get together. i will be running in Oct
howard
in two weeks.i will be at the track from sun up to sun down saturday. i have a room fri night in Victoria.
wouldn't it be great to get together. i will be running in Oct
howard
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
looks like we are ready to fire it up monday.


i have reshuffled the turbo evaluation order. i will be starting w the GT3574 and then the BW S300s (363).
from post one re these two turbos...
"GT3574
features the aforementioned GT35 compressor wheel, w a journal bearing and a much larger turbine wheel.... 5.89 sq inches or 92% of the compressor. let's really find out about journal bearing spool V ball bearing and also compare backpressure given the differing hotside wheels.
Borg Warner S300s (363).
there are a bunch of S3XX BWs. this turbo is just a touch smaller than the TO4z. the compressor is 6.946 sq inches V 7.007. the compressor is quite different than the Z as to trim, having a smallish 63 inducer V the TO4z at 66.7. Trim is 52 V 63. smaller Trims promote spool. the turbo can put out over 70 pounds per minute so it should make 550 but have great midrange. that's the theory."
in order to speed things up since we have alot of turbos to do (including the GTX3582) Luke will probably do some of the dynoing without me riding shotgun. while it will seem a little weird my presence isn't really required... as much as i would like to think so
i am heading out to the Texas Mile thursday. anyone nearby i would love to meet. i will be there saturday (March 26) only.
howard


i have reshuffled the turbo evaluation order. i will be starting w the GT3574 and then the BW S300s (363).
from post one re these two turbos...
"GT3574
features the aforementioned GT35 compressor wheel, w a journal bearing and a much larger turbine wheel.... 5.89 sq inches or 92% of the compressor. let's really find out about journal bearing spool V ball bearing and also compare backpressure given the differing hotside wheels.
Borg Warner S300s (363).
there are a bunch of S3XX BWs. this turbo is just a touch smaller than the TO4z. the compressor is 6.946 sq inches V 7.007. the compressor is quite different than the Z as to trim, having a smallish 63 inducer V the TO4z at 66.7. Trim is 52 V 63. smaller Trims promote spool. the turbo can put out over 70 pounds per minute so it should make 550 but have great midrange. that's the theory."
in order to speed things up since we have alot of turbos to do (including the GTX3582) Luke will probably do some of the dynoing without me riding shotgun. while it will seem a little weird my presence isn't really required... as much as i would like to think so

i am heading out to the Texas Mile thursday. anyone nearby i would love to meet. i will be there saturday (March 26) only.
howard
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
we did fire it up today. i was going to drive it home (90 miles) but it seems a snow storm is moving in tonight so it is parked. a few details tomorrow and we have dyno time scheduled for wed. the motor has new rotor bearings and i did want to put a few miles on it but we will settle for a few heat cycles...
howard
howard
enjoy Texas Howard, I was just down there for TX2K11 and didn't want to come home. Feel free to drool over the Underground Racing Twin Turbo Gallardos, there were 8 of them last weekend, I wouldn't be surprised if a similar number showed up at the Mile.
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
thanks for the tip. i will be quite int'd in the hardware...
Green Bay is getting over 15 inches of snow today and i didn't hear from them so i assume they finished up a few odds and ends. i will be back sun eve and will, if i get my eyeballs uncrossed from the 2600+ mile trip be up at Beyond Redline either mon or tues and i would expect we will be finally back on the rollers.
off the net and off to Texas.
howard
Green Bay is getting over 15 inches of snow today and i didn't hear from them so i assume they finished up a few odds and ends. i will be back sun eve and will, if i get my eyeballs uncrossed from the 2600+ mile trip be up at Beyond Redline either mon or tues and i would expect we will be finally back on the rollers.
off the net and off to Texas.
howard







