Very nice build man. I'm planning on a Vortech myself here in the next 6-12 months or so and was kind of curious how you are feeling about your 4.08's after driving it for a while. I know early in the build you said they weren't that bad but you usually just started in second gear on a hill. I would like to get some shorter gears but don't want it to be too compromising when the supercharger is on. If you had the choice what gearing ratio would you have now after driving with 4.08's? Between the 3.7, 3.9, and 4.08 it's hard for me to choose. My car is a daily driver with occasional track use and some weekend mountain driving. Your input would be extremely valuable to me.

 

Pretty great build thread you have going on here. I actually have a very similar setup - it's nice to finally see someone else with a Vortech/Motordyne combination.

You should post more videos!

Also, I noticed you had the Z1 Clutch/Flywheel combo. Aside from the slippage you mentioned with the mild clutch, how are you liking it? I'm about to pull the trigger on the Z1 combo (performance street clutch), but figured I'd see if you had any thoughts, regrets, or considerations with your current setup?

 

Its been a long time. Sorry for the late update. So this will be a long one, grab a beer.

PCS moves suck and take a lot of time away from modding but I made up the time lost with the big changes happening now since im finally settles here in big ole Texas!. Finally have my Z and my wife's car here as well as gotten our housing taken care of, and my tools will be here with my household goods next week Monday.

I digress. Before I left Hawaii I swapped my Quaife + 4.08 geared LSD with a Stock 3.54 VLSD from my friend, Kingbaby, who is a moderator here in the forums. I believe me chasing for more power and being able to put to the ground more effectively is important, this is why I gave up on the 4.08's. As far as I can tell, he loves it being the HR na fanatic as he is!

OK, some things I bought are an upgraded Methanol nozzle from Coolingmist, CM7 which delivers 600cc's of meth @ 200psi. And since am able to tune myself, I took away 3-4% of fuel to compensate for the added meth an added 2 more degrees ignition timing from 4200rpm to redline.



I also bought a PMAS air flow sensor for easier tuning. Maf was pegged at 5.09v right before 5400rpm, so this was much needed.


I also bought the Kinetix Veocity Manifold, has not been installed as of yet because....


Yup, Im getting my bottom end built. Michael Huml from Built Industries in Florida is taking care of the order, Only doing the bottom end for now. Wiesco 8.8 Pistons, Manley Rods, etc. Invoice below. Also going to upgrade my blower to a Si trim from the Sci I have now. Go big or go home ehh?

 

I loved it when I had them before I swapped back to the OEM Vlsd. My car felt like a monster but I really wanted to lengthen my gear time under WOT to effectively put the power to the floor. If you do go a shorter gear, better tires are needed as traction becomes an issue with a higher HP car, this is why I purchased my Toyo R888's for the rear to help that, and even then I would break loose if they were cold in 2nd gear. Good luck to you!

 

Thank you, sir! Watched all your videos on Youtube and it made me hungry for more power, lol. I love my Motordyne TDX, I don't think ill be giving it u anytime soon.

With the Mild performance clutch from Z1, I really cannot complain. Its great and it did the job, especially with the 14lb flywheel. The site specifically says not to go over 350 wheel torque with it so I was asking for it when I was tuning. I will be buying a new clutch soon, kinda just been dealing with the slippage which isn't as bad as I made it out to be when I posted that, my eyes are on the Southbend style clutches or the Street clutch version from Z1. Just haven't had enough time to swap or even try to buy one due to moving from Hawaii to now Texas and taking care of my family and work, and everything else.

 

Wow! This thread makes me excited! It really inspires me to go and do the same to mine as well.

So you were able to supercharge her withing 3 days?
And you didn't need to buy any other supporting mods with the supercharger kit?

Btw really love her it looks!

 

Thanks sir, and I'm happy to have my story inspire you! Yes, I was able to do the full install in about 2-3 days taking my time. I previously has a wideband and installed an analog boost gauge at the time to get me thru till I saved up for the digital gauge I wanted.

 

--UPDATE--

Soo after a long talk with 2bad240 here and other friends on Facebook, Ive decided to change my compression ratio on my shortblock build from a 8.8 CR to 11.1. With the extra compression, I won't need the extra boost. Revving to 7k rpm with a CR of 11.1 would give me a Dynamic Compression ratio of 19.5.1 to 20.5.1 at redline at 14-15psi. For a 8.8 or lower CR, it would take about 21psi to equal the same Dynamic compression ratio at redline on a SC setup. 15psi would probably be well over 500whp on a 1050cfm blower like my SCi with a 2.87 pulley (which is the power level I want reliably). So this being pared up with my OBX Longtubes I will install when the block gets here, My already efficient Meth injection kit and the Kinetix Velocity manifold, I believe this will be an effective flowing and power producing setup that will run hard, Keep cool and have great knock resistance.

Emailed Built industries in Florida and told me it wasnt a problem, I would just need to pay the difference with the shipping charges to return the 8.8 Wiesco's I ordered and to ship the new 11.1 CP pistions. Also said my lead time on the block would probably be increased an extra week from the 5 week build time he originally gave me due to this.

 

11:1, Their you Go!

8.8 would have turned it to mush in the low and low/mid range. Good Choice.

 

Thank you, sir!

Hoping for the best, Instead of going the easy way and going Si Trim, I will see how far I can push the tiny SCi. Hoping to make over 500whp, which seems realistic also revving out to 7k. If not, I can always upgrade the blower anyway which isn't that expensive.

 

I have the old version SC-Trim (1000cfm) well over 500whp on 93 pump.

With a built motor you can do what ever you want for the most part, blower wise.

 

What kind of fuel are you planning to run with the high comp pistons?

 

There's 93 pump down here in Killeen. On top of the and Im also gonna be dumping more meth also too to keep things cool and to bump my Octane rating/Knock threshhold higher. Plan is to run a dual CM7 nozzle setup, injecting from the elbow before the throttle body and charge piping right after the intercooler going up to the MAF sensor. I should be fine.

 

Good choice on the pistons. Is that dynamic compression with stock cams? Because dynamic is much more dictated by valve opening events. And dynamic compression I'm quite sure can never be higher than static compression ratio.

Beyond that, I don't understand why you'd want a high dynamic compression ratio, on a FI engine.

The dcp that I've heard is "ideal" (broad term) is like 8.5:1.

Either way you should be going with more aggressive cams, which will lower dynamic comp ratio. But with the higher static pistons the car will be more streetable.

And don't use that kinetix. People consistently have lost power with it. MeanZ lost power on his ti trim when he used it.

When you get a rev up oil pump, have a machine shop machine the edges of the crank key slot on the pump gear. That way you can spin the lump plenty of revs and don't have to worry about the gear breaking when it hits rev limiter. I wish I had.

 

Thanks. I'm not chasing big numbers, I want a reliable block I can beat on around 500whp. The higher CP will allow my car to be more responsive/streetable like you stated, and at the same time beef up my entire powerband without killing my low end to midrange performance like a lower CR would do.

I will take my chances with the Kinetix. Its worked great for others, Colombo and Ray both with their cars make great power with it revving as high as they do. I believe its all in the combination, and wanting to rev farther than 6600 is one of my goals once I do get cams in the future. If the Kinetix doesnt work out I can simply buy a revup lower or go back to the Nonrev Lower and spacer setup and compare my results. Wouldn't hurt to try it out at least.

Thanks for the advice on the Revup Oil pump, I will make sure to do that.

 

Examples of failures with kinetix are from slapping it on without tuning. Or on combos that are not matched to where it's designed to make power. I gained 3 mph in the 1/4 na just by putting in on and retuning.

 

Looks really good

 

Lower cr? I was talking about your dynamic compression ratio. Re-check your calculations seeing as you're getting a higher compression ratio than at TDC.

And you really should pick some more aggressive cams if you want to make more power in the top end. It will help the kinetic and take advantage of that CR. You don't have to go straight to 272's but even a 264 etc would be a good match, and help carry power past 5,000rpm. The oem cams are only around 238 or 240 duration with a pretty mild amount of lift. You'll have plenty of vacuum with that cr so you won't have any draw backs. It would be dumb imho not to put some more aggressive cams in while you had it apart.

But beyond that, Colombo and 2bad are cammed. Were those kinetix gains on stock cams?

 

Be careful with relying on Meth for your tune...I blew an engine when my Meth system failed...I still use the meth, but as an added safety/cooling feature; I rely on e85 now since I can only get crappy 91 around here...

That being said, with the right engine management/fail-safes you may be OK with Meth...

 

Yeah, you either want an AEM fail safe hooked up to a haltech etc standalone to kick into failsafe map, or you want to tune the car, and then add meth on top. You'll still have gains. But you don't want to take out much if any AFR. Meth has a different stoich mix than gasoline so you don't want to use that in your final afr tune.