Mods with no tune needed.

[Loucifer]

Hi all. I've done a lot of searching on here, there, and everywhere and came up with a small list that needs verified. I do not see a similar post on here.

The goal is a single post to list all the Mods that can be installed to improve stock power performance a little, with no tune needed.

Here's what my research thus far has revealed:

Sticky tires. Because nothing will help without traction.

EASY MODS:

Aluminum Driveshaft. Moslty done for strength. However, less rotating weight might improve E/T, but have not seen any data yet...

3.17 Litens Pulley +hp?, -x E/T?

3.09 gears. -x E/T?

Interchiller. +hp?, -x E/T?

Meth injection. Used without a tune, this would be primarily for the cooling effect, and maybe for those running 91 octane to get to 93 or so. There are many naysayers on this system I know.

A LITTLE MORE SERIOUS:
NOS - I seen 100 shot systems engaging at WOT, no tune, but not sure if that's safe for the long haul? Would 75 shot be more safe over the years.
+100hp, -x E/T?
+75hp, -x E/T?
+50hp, -x E/T?

What else is there?
I am happy to keep this list updated with your experienced responses for awhile. The ?'s is for those with actual experience to chime in and I will update with no speculators please.

 

[Loucifer]

This is to attempt to compile your responses...

So far everyone agrees on:
- Drag Radials. Best bang for the buck.

Some agree on:
- 3.09 gears.
- Alum Driveshaft.

Other suggestions:
- Demon springs.
- FI interchiller spacers and thermal heat blanket. +20-25rwp no tune needed.
- Litens 3.17 on a Hellcat is worth about 25hp about 45hp on a Redeye or Demon and 65 on a Demon using race gas. ?Tune?
- Lighweight lithium battery.
- Diff Brace.

 

[kc hellcat]

309 gear , drag radials, and driveshaft do not require tuning. no way i would spray nos without a tune. litens 3.17 pulley not sure about. just my opinion.

 

[Markp]

The Litens 3.17 on a Hellcat is worth about 25hp about 45hp on a Redeye or Demon and 65 on a Demon using race gas. Still on the fence about needing a tune or not.

3.09 gears? Well guys are going the same speed with 2.62s so not sure.

FI interchiller spacers and thermal heat blanket is worth about 20-25rwp no tune needed and will keep your car cool.

Demon springs

Drag radials are a must.

Driveshaft

Lighweight lithium battery.

 

[hellno]

Biggest improvement I saw in lowering my et was nt05r radials and the 3.09 diff
Helped my 60ft and my 1/4 mile time was consistently quicker then with the 2.62 , I did add the cci shaft and diff brace but they had no effect on et

 

[Hickster]

I looked into this 2 years before I purchased my 2018 H/C and found things to agree with and some not yet. The tune will punch your warranty in the trash. The 3.17 pulley not effective with out a tune, tires good, OA Intake good, rework exhaust good, race gas ,,, hell no. My personnel experience unless proved positive unleaded. There are a lot of people on here with more experience than me but I did my hill billy bro education before trashing my $8,200 warranty. Just about did. But these dudes and ettes will be able to find out fer ya. if not contact me on the O- Wee Gee Board and some dead ass will contact you in your sleep. May be Cole will be nice to do sole. He is a cooool dude. Beer time Cole.

 

[Loucifer]

Biggest improvement I saw in lowering my et was nt05r radials and the 3.09 diff
Helped my 60ft and my 1/4 mile time was consistently quicker then with the 2.62 , I did add the cci shaft and diff brace but they had no effect on et

How much of a difference did the 3.09 gears make for you? Were they done at the same time as some other mod (like DR's)? Or were they done separately so you can get a true measurement?

 

[hellno]

I had a best 1.55 60 ft and consistent low 1.6s also my 1/4 with the 2.62 was 11.1 best I got the 10.9s with the 3.09 the nt05r is at best the most traction you I could get in a 20” wheel I finally went to 17 with mt etrs to get consistent launches and great traction on stock power but if I had it to do over again I’d go straytonthe racestar 17s with 305/45/17 etrs my times were during the heated months