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Turbo vs SLR

Posted By: draginmopars

Turbo vs SLR - 12/01/14 01:44 AM

Since turbos like load
What would be a better Starting Line Ratio?

rear gear 3.23 or 3.55
275 et pro tire on 10" rim

Trans
A-999
A-500

727
518

trying to decide which Trans/rear gear comb to run
street cruiser/ weekend track car

engine is .040 over 340,
9.64 compression
ported edenbrock

No cam yet
Watching >>>>Dizuster<<< turbo kit post

Was thinking about this
While
prepping the floor/ trans cross member for a 518 with trans shield.
Only cause it needs the most clearance to fit.

thanks
Howard

Posted By: 1967dartgt

Re: Turbo vs SLR - 12/01/14 04:04 AM

If you are looking to make big power go with a 3.23 rear with either trans to get your slr down. Then tune with a convertor to get your power where it needs to be. Its easier to manage a looser convertor then a tight one on small tires.
Posted By: TheOtherDodge

Re: Turbo vs SLR *DELETED* - 12/01/14 04:35 PM

Post deleted by TheOtherDodge
Posted By: Mr.Yuck

Re: Turbo vs SLR - 12/01/14 05:01 PM

my buddy runs low 8's at 170 w/ 3.55 gear and a turbo 400 trans... that said I'd think it al depends on your converter and what you are looking to do with the car.
Posted By: MR_P_BODY

Re: Turbo vs SLR - 12/01/14 05:05 PM

Since its a cruiser I would run the 518.. you get the
OD with it(but loose the input and pump gears for the
normal 727 input and pump gears... either rear gear
should load the engine enough.. but the 3.23 would
really drop the rpms in OD when cruising... figure
out the rpm that you want to cross the line and use
the best rear gear
Posted By: draginmopars

Re: Turbo vs SLR - 12/02/14 03:14 AM

thanks,for the replies,

We are wanting to build a dual purpose vehicle.
cruise/track

mild turbo engine, easier on parts (?)
VS radical stroker
setting off car alarms every where to goes.
Posted By: Mr.Yuck

Re: Turbo vs SLR - 12/02/14 07:58 PM

Quote:

thanks,for the replies,

We are wanting to build a dual purpose vehicle.
cruise/track

mild turbo engine, easier on parts (?)
VS radical stroker
setting off car alarms every where to goes.



yeah now a days boost is the way to go. no big lumpy bumpy cams, big cubic inches, stall and non-fun highway gears. When this engine goes, the next build will be boosted for sure.
Posted By: 1967dartgt

Re: Turbo vs SLR - 12/02/14 08:04 PM

Slr is for a race car and not a street crusier. Use what ever gears that will make you happy on the street. Maybe a 3.55 to get on boost easier when crusing.
Posted By: draginmopars

Re: Turbo vs SLR - 12/02/14 10:06 PM

Quote:

Slr is for a race car and not a street crusier. Use what ever gears that will make you happy on the street. Maybe a 3.55 to get on boost easier when crusing.



Driving the Race car to the track..

this car isn't a daily driver, just a "Fun" car

Need the SLR when we get there
Posted By: dizuster

Re: Turbo vs SLR - 12/03/14 12:24 AM

I don't know what this car weighs... but I have lots of broken 727, 8 3/4" pictures I could show you when I only had home ported iron heads, non-pro 275's, and a REAL small cam...

Eddy's, a good cam, and pro's are only going to make more power/be harder on the driveline.

Just based on that, I wouldn't bother even trying the 904. And I also would think REAL hard about putting a Dana in the car.

Just depends what kind of ET you're looking for though.
Posted By: draginmopars

Re: Turbo vs SLR - 12/03/14 02:23 AM

being dual purpose

on the topic of a dana

what about 4.10 dana gear running with A-518
(because that's the gear in the White Dart now.
1350 joints)
have a 3.54 gear but would have to narrow a housing.
don't want to change out the 4.10 vs 3.54

have a 518 (diesel) out of a pulling truck with good parts in it
5 pinion, hardened input shaft, billet drum, etc
could swap into the A-518??????

would the 3.54 be a better ratio ?
ET pros are 26" tall

Thanks

I know very little about setting up a turbo application
trying to learn.
Posted By: MR_P_BODY

Re: Turbo vs SLR - 12/03/14 02:33 AM

Quote:

being dual purpose

on the topic of a dana

what about 4.10 dana gear running with A-518
(because that's the gear in the White Dart now.
1350 joints)
have a 3.54 gear but would have to narrow a housing.

have a 518 (diesel) out of a pulling truck with good parts in it
5 pinion, hardened input shaft, billet drum, etc
could swap into the A-518??????

would the 3.54 be a better ratio ?
ET pros are 26" tall

Thanks

I know very little about setting up a turbo application
trying to learn.



The valve body in a diesel trans is all wrong for
a gas engine
Posted By: draginmopars

Re: Turbo vs SLR - 12/03/14 02:35 AM

what about 1350 vs 1410
would have to buy another set of 1350

have a complete set 1410 yokes could use ?
Posted By: draginmopars

Re: Turbo vs SLR - 12/03/14 02:39 AM

Quote:

Quote:

being dual purpose

on the topic of a dana

what about 4.10 dana gear running with A-518
(because that's the gear in the White Dart now.
1350 joints)
have a 3.54 gear but would have to narrow a housing.

have a 518 (diesel) out of a pulling truck with good parts in it
5 pinion, hardened input shaft, billet drum, etc
could swap into the A-518??????

would the 3.54 be a better ratio ?
ET pros are 26" tall

Thanks

I know very little about setting up a turbo application
trying to learn.



The valve body in a diesel trans is all wrong for
a gas engine




Mike
was only going to rob the good parts> pinion gears, drums, input shaft since the case is cracked anyway, where it bolts to the adapter plate on the diesel
use the valve body and governor in the (Car)trans
Posted By: MR_P_BODY

Re: Turbo vs SLR - 12/03/14 02:44 AM

Quote:

Quote:

Quote:

being dual purpose

on the topic of a dana

what about 4.10 dana gear running with A-518
(because that's the gear in the White Dart now.
1350 joints)
have a 3.54 gear but would have to narrow a housing.

have a 518 (diesel) out of a pulling truck with good parts in it
5 pinion, hardened input shaft, billet drum, etc
could swap into the A-518??????

would the 3.54 be a better ratio ?
ET pros are 26" tall

Thanks

I know very little about setting up a turbo application
trying to learn.



The valve body in a diesel trans is all wrong for
a gas engine




Mike
was only going to rob the good parts> pinion gears, drums, input shaft since the case is cracked anyway, where it bolts to the adapter plate on the diesel
use the valve body and governor in the (Car)trans



Is the input shaft and pump for a 727 conv
Posted By: draginmopars

Re: Turbo vs SLR - 12/03/14 02:51 AM

yes
I have a 3500 converter
thought about using

has anti ballooning plates
Posted By: 1967dartgt

Re: Turbo vs SLR - 12/03/14 04:35 AM

Pro is 28 inches tall. Comes in one size 275/60/15 or 28/10.
Posted By: dizuster

Re: Turbo vs SLR - 12/03/14 06:08 AM

You'll be well out of 3rd gear before the end of the track with the 4.10. I wouldn't want to run that much torque through the 518 OD unit. Not to mention they are not real effecient.

3.55 Dana would be your best option with the good Trans parts in a 727.

3.55 gears are all over the place. If you're on a budget get a used one and swap it in. That's what mine has in it.
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