Right now my V-2 SQ supercharger is with Vortech for a re-build (I was collecting a little oil at the inlet). It's going to cost me about $369 for a 'minor' rebuild (gosh, I hope it's only minor). Anyway, I thought about just going straight for the V-2 T-Trim upgrade, like Matty has, but it's $1200! I'm not quite sure I see $1200 worth of benefits. But maybe I am missing something. ?

From what I understand, the benefits are:

- Capable of more CFM (1000 --> 1200). [But isn't 1,000 more than we'll ever need?]

- Increased max horsepower (680 --> 825). [Do I even need to comment?]

- Increased max revolution (? --> ??) [But how many of us are actually over-revving our blowers anyway? And even if we are, it must be for only a few seconds every so often. And besides, you can re-build your blower over 3 times before you exceed the cost of the T-Trim upgrade!]

Am I missing anything else? The guy at Vortech was a little vague.

I'm asking now because if I do decide to go with the T-Trim, I won't need the minor rebuild so, in a sense, I am 'only' paying $831 for the upgrade. But I have to let them know soon.

Thanks guys!

 

from what i understand about it is that since it flows more cfm you inessence are getting more air into you motor for every psi you are boosting. that extra bit of air flow will allow for a more forceful combustion stroke and thus more power.

it also has the habit of giving more tq then a v2 and i'm not to certain on how that is working. just as a guess it might also but operating at a lower exit temp and that might have something to do with it.

 

Is the upgrade the same price for V1's?
Just asking because I thought I read somewhere it was a bit cheaper.

 

No mention of price differences on Vortech's website...
http://www.vortechsuperchargers.com/...ction=Services

 

Thanks for the response liquid. Due to lack of response, I declined the T-Trim upgrade today when Vortech called. I'll stick with the minor re-build. He said it should be shipped back to me in a few days.

 

Nice. That's a fast turnaround. Did Vortech classify it as a minor rebuild or a major rebuild? Total cost??

 

I was just about to asked that...LOL

 

Yeah, it was a minor rebuild as suspected/hoped. That was $369.95. Then I needed to fix my chipped impeller blade because my SC *cough* ate a sock *cough* for $145.95 <subject change...> and I ordered the catalogue/T-Shirt combo for $9.95 so the total was $525.85. I don't think that includes return shipping though so that may be another $20 or so. His name is Mariano. 1-805-247-0226x227. Pretty cool guy.

 

WTF????

 

Wow lol.

 

Josh, that T trim flows alot of more boost then the V2. You will feel the car plant you to your seat. With the 3.125 pully I was boosting over 13PSI. boost hits faster then a V1 and a V2. I blew two motors with that t trim. However if you put a larger pulley you should be fine. I never dynoed but I did street race a couple of times. I raced a couple of Mustang Gts. With the V2 I would pull slowly away from them @ 10PSI. With the Trim I instantly left them as if I had a turbo If you got the funds and are willing to get a JS, dyno tune and be more careful then I was you should be fine. I got this T trim after I bought a V2, then got a ballbearing turbo. Then bought another vehicle and bought that T-trim kit.

Jaime

 

^ looks like T-trim is worth it........

 

well jay25 you blew your motor because you were probally tuned for a certain psi and cfm and the t-trim can yeild you the same psi but at a way larger cfm and that would lean you out considerably, and thus kaboom

 

Same thing I said, and I could use a rebuild/upgrade....

Question, how boost will a V-2 t-trim make on a 2.62 pulley???? Anybody????

 

I dont think you can T trim your V2. Only a V1. I blew my motor cuz I did not care. That was the reason why. By the way when I blew up the first motor I had that Jim Wolf ECU. In my opinion the ECU that I had was a plain Turd. Thats why I got rid of it. Even with timing retarded the motor blew up. That was not even with a T trim. That was with a regular V1 3.125 pulley.

 

Actually, they do upgrade V2's to T-trims nowadays. Matty has one, and I've called Vortech myself and confirmed....

 

That is interesting, I have not been here for a long time. Must be a quiet T trim then. Not as loud as a V1.

 

Didnt rebuilt to T-trim yet?

 

Well, I wish I had your info. earlier Jamie. Last week I authorized only the re-build. Would you believe my blower actually showed up already last Friday? But I wasn't home to sign!!!!!!!!!!!!!! Now I am in this infinite do-loop where I am not home during regular delivery time yet they want a live person there to sign. Arrrgghhh.

Overall turn-around time was less than two weeks. That's better than some of the horror stories I have heard.

 

Yeah I myself don't like JWT ECU's, especially on SR20DET powered 240’s (I went with Enthalpy ECU, waaaay better), but I will be running the Emanage Ultimate in hopes to fight against detonation. I also might try the J&S safe guard, but don’t know if it will work with the EU. And yes Vortech does offer the t-trim on V-2’s blowers, I called them myself to confirm a few months back.

 

Who said anything about a t-trim??? I wish but don't think the motor will hold 18psi with the 2.62 pulley.

 

Not bad because Vortech told me 2-3 weeks or more..... I guess I'll be doing my rebuild in January.

 

man sorry, you guys can PM me or email me. It might take a day or two but Ill respond. I am on my bros computer at his apt. I am in the middle of moving out and finally completing my home. That explains my disappearance from the forums for a long time. Also no boost. I do have a 2000 Turbo diesel F250 thats chipped but that dont count. My plans are the 2JZGTE route. I do have a 95 240 or a car that can have this 2JZ and 6spd Getrag transplant and a 3.4L stroker upgrade after I sell my home.

 

Don't sell in this market.

(Assuming your market is as bad as ours here in So. Cal. Where are you, Atlanta?)

 

Think that 98 maxima was modded. I renovated my home as if I was modding my 98 max! But Ill be fine. House is pretty large, 5 bdrms, 3 full baths, two car garage big front and rear back yard and shed! Ill be fine. Appriciate the input

Jaime

 

I still say you should wait to sell Jaime.

But anyway, back on topic (kind of).... I left a plea note for the UPS man to leave my package at the door even though it required a 'live signature'. He did! The packaging was excellent. The blower and all its parts are so totally clean and shiny I can't tell what's new and what's old. It looks like all the screws are new. ? I know for sure all the tie-down straps are new (the thin pieces of metal you loosen/remove when you want to clock your blower). The new straps are much nicer than the other ones I had originally. It's hard to explain but they are a "T" design so you only need one hole per strap, not two like the old 'Bone' design. I think they left my blower clocked like I had it (although all my Sharpie marker marks are gone). They sent it back with caps on the in/out/oil nipples. The T-Shirt looks good and I think it's the same one The Wizard paid $13 for. Mine was $10 with a free $5 catalogue. The catalogue is pretty cool and even more informative than the web site. All looks good. And quick turn around too. Time for re-install....

 

^ congrats bro, hope my experience will be as plesant when I need a rebuild/t-trim upgrade

 

I love my V2 T-Trim. One of my favorite upgrades by far.

-matt

 

What pulley are you running and at what RPM do you begin to see boost?

 

Cool, but the question was: "What are the exact benefits of the T-Trim?"

What made you decide to go T-trim Matt?

 

Im assuming the ability to build boost faster and more of it with a smaller pulley. Thats why I asked him those previous questions. If so the T Trim would be an upgrade I would like to look forward to doing in the future,... once funds are available

 

I went with the 2.87 pulley and mounted the front mount on at the same time. Since the install I havent really been able to mess around with the car. I must have been on about 500 miles in the last two months since school started. Just been too too busy.

-matt

 

Yes you can. I upgraded my V2sq to T-Trim.

 

That was already established in post #16...

 

Have you guys looked into the Si trim? It looks really promising and is only a $350.

 

Sorry I didn't read all the posts. I have a question if you can help me with. How many whps did you gain w/ the cattman headers?
becouse I'm thinking of buying one, and want to see if it's worth it or not. Thank you

 

si trim? i googled and ended up on the vortech site to find no info, would you mind elaborating a little on this?

 

This post has lots of info on the Si:

http://www.my350z.com/forum/showthread.php?t=319254

Relative to the S-Trim, it is more efficient, has a higher max RPM, builds boost sooner, and makes more peak boost.

 

Hmmm.... the 350 guys say it's not on the website but is in the catalogue. I'll check when I get home....

 

Yup, in the "2007 Performance Catalog" there is a V-2 SQ Si-Trim! It has the highest efficiency. But just like the website, there is no mention of the T-Trim in the catalogue.

-------------------------------------------------------------------

From Page 13, under "V-2 SQ Supercharger":

.................................S-Trim.....SC-Trim.....Si-Trim.....E-Trim
Impeller Speed (Max).....50,000.....53,000......55,000......65,00 0
PSIG (Max)..................20..........20............2 6............24
Flow CFM (Max).............1,000.....1,000........1,150.... ....1,150
Horsepower (Approx).....680.........680...........775........ ..750
Isentopic Efficiency.......72%........75%..........78%...... ...76%

The V-2 SQ model is considered the new generation among superchargers. Highly advanced computer designed gears feature an optimized helical profile which allows for near silent operation while providing superior performance. All V-2 SQ units feature a 3.6:1 internal step-up ratio and are direct bolt-on replacements for our V-1 units.

V-2 SQ S-Trim Supercharger:
- Strong low-speed boost along with exceptional mid to high-end flow for the street and strip
- Included in most Vortech supercharging systems
- Low-friction impeller seal allows for "upstream" throttle draw-through applications


V-2 SQ SC-Trim Supercharger:
- Impeller speed potential and adiabatic efficiency slightly higher than S-Trim
- Physical dimensions equal to S-trim
- Delivers efficient airflow up to 680 horsepower
- Low-friction impeller seal allows for "upstream" throttle draw-through applications


V-2 SQ Si-Trim Supercharger:
- Extraordinary 78% peak efficiency
- Ideal for latest generation of improved breathing, high-power street and strip engines
- Vastly improved flow and efficiency at high boost levels, providing completely new levels of power gain


V-2 SQ E-Trim Supercharger:
- Ultra high impeller speed and efficiency
- Low-friction impeller seal allows for "upstream" throttle draw-through applications
- Physical dimensions equal to S-trim


-------------------------------------------------------------------



While they do not make mention of the V-2 T-Trim in the catalogue, here is what they say on page 12, under "V-1 Supercharger":

V-1 T-Trim Supercharger:
- For modified engines used primarily in racing applications
- Delivers efficient airflow up to 825 horsepower
- Low-speed boost and throttle response equal to the [V-1] S-Trim
- Designed for "Cog" style supercharger drive systems
- Requires use of Maxflow Racing Bypass Valve

And: Impeller speed = 55,000; PSIG = 26; Flow = 1,200; HP = 825; Efficiency = 73%

(there is also a V-1 Si-Trim too - it has the same chart numbers as the V-2 SQ Si-Trim)


So, in conclusion, this Si-Trim seems pretty rad. It seems like this might be the way to go, instead of the V-2 T-trim, as the Si-Trim is 5% more efficient. I'm upset that, when sending in my SC for service, the tech only told me about the new V-2 T-Trim option, and made no mention of the V-2 Si-Trim option.


I always forget - do we have the V-2 SQ S-Trim or V-2 SQ SC-Trim?