[Leedom]

So the birthday has come and gone and the fruits of my birthday (Summit gift cards) are allowing me to get my gears. 4.10 (thought a lot about this and 4.30 are higher than I want to go) and a programmer. I need advice, or should I say confirmation on choice. Let me know if you see an issue or think I would be better served with another option.

Gears
http://www.summitracing.com/parts/FMS-M-4209-G410A/

Installation Kit (not sure on which one I would need here)
http://www.summitracing.com/parts/FMS-M-4210-A/
http://www.summitracing.com/parts/FMS-M-4210-B/

Programmer
http://www.summitracing.com/parts/SD...T/?image=large

[enkeivette]

I think programmers are kind of dumb unless you have a boosted motor. What can it really do for you? Advance your timing 4 degrees and bring the AFR down to 12.5:1 WOT? There's maybe 20hp unless something was wrong before.

If you're willing to spend $550 total I'd get some long tubes and have a muffler shop fab up some dual 3" mandrel bent pipes... that or some NOS sucka!

[Leedom]

Originally Posted by enkeivette

I think programmers are kind of dumb unless you have a boosted motor. What can it really do for you? Advance your timing 4 degrees and bring the AFR down to 12.5:1 WOT? There's maybe 20hp unless something was wrong before.

If you're willing to spend $550 total I'd get some long tubes and have a muffler shop fab up some dual 3" mandrel bent pipes... that or some NOS sucka!

The tuner is more for the code reading and gear correction, not that a little exrta power hurts.. I can get another unit that just does the gear correction but that is it for $100 or so. I would rather spend a little more $ and get the programmer so when I do get my blower I have one already.

[SeanPlunk]

I think the car should be pretty awesome - I'm excited to see the difference. I always thought the low end of the N/A DOHC modular engines was lacking but this should wake it up nicely.

[enkeivette]

Originally Posted by Leedom

The tuner is more for the code reading and gear correction, not that a little exrta power hurts.. I can get another unit that just does the gear correction but that is it for $100 or so. I would rather spend a little more $ and get the programmer so when I do get my blower I have one already.

Then why not continue to save for the blower. Half the time I will lose the rear end in 2nd gear from a roll with a 3.55, and I believe I have more tire than you. You're going to hate those 4.10 with the blower.

I tried launching last week. Ha! Bounced off the rev limiter all the way till I hooked and bogged in 3rd, and that was with feathering the pedal.

[Leedom]

Originally Posted by enkeivette

Then why not continue to save for the blower. Half the time I will lose the rear end in 2nd gear from a roll with a 3.55, and I believe I have more tire than you. You're going to hate those 4.10 with the blower.

I tried launching last week. Ha! Bounced off the rev limiter all the way till I hooked and bogged in 3rd, and that was with feathering the pedal.

I could do that but the blower is about 3 to 4 years away unless a financial windfall comes my way. I have talked with a number of people who say 4.10s with a blower is a pretty impressive combo. The blower I plan on running is a Procharger so it will not have as much low end torque as a roots style blower and the gears should help get me up in the rev a little quicker and thus in the powerband quicker.

[enkeivette]

Originally Posted by Leedom

The blower I plan on running is a Procharger so it will not have as much low end torque...

Somehow I don't believe a lack of power will be a problem.

[SeanPlunk]

Looking at the thread, it looks like Adam should expect anywhere from 430-470rwhp and 400-430rwtq on the stock pulley. I think the 4:10's will be okay.

[94cobra69ss396]

A 4.10 will be a great gear for Leedom's car. Remember enkeivette, he only has 281 cubes not 383. He doesn't have the same low end torque that Cambria has so he needs more gear to get his car moving.

Adam, you only need installation kit FMS-M-4210-A but you will need to pick up new pinion bearing if you go with it. FMS-M-4210-B comes with everything you need as well as some things we don't such as the carrier bearings. If you have the extra $40 I would just get kit B.

Let me know when you have everything in and we can set up a day to install them.

[enkeivette]

Point taken.