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The product itself is fine. I've been running a GTM SC kit for some time now and another guy in my area has as well - no issues with the quality and I had a guy in my area who is a renown whiz with these cars double check everything (and paid through the nose for it). Verdict was that the kit was high quality once we got the right parts and had everything set up properly.
That said, their "bedside manner" and timetables suck. Edit: Also if you are concerned that a FI build is going to "destroy your car", then you don't want a FI build. FI conversions on non-built motors and hey, even built motors are nerve wracking. You are introducing multiple failure points into a vehicle that was not engineered for the stress(es) you're about to put on it. Things can and will go wrong and when they do, it's going to be expensive to fix. If what I'm describing to you does not sound appealing, then please for the love of god, do not build it. |
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don't worry about the little failures it will fail all on its own no matter what you do to it F.I. or not, just gotta deal with it when it happens. The GTM superchargers have always been good quality wise you just need to be fully prepared to wait a long time to get it. Because it is taking so long, and because of the group buy that has been going on for a long time they have gained a lot of negative opinions on the forum, and now all responses about anything gtm are all pitchforks and torches. If you only want to do supercharging the GTM kits have consistently mopped the floor with the stillen kit, but it has taken months for guys to get their kit. So if you choose to order take it slow, do upgrades on the rest of the car in the mean time, and DO NOT take your car apart or schedule the kit install until you get the kit.
Edit: now as for the actual intent of your post if you have a manual the whole clutch hydraulics system is utter garbage and will try to strand you somewhere, especially with a stiffer spring in the clutch, the diff bushings in the rear end want to explode, get an oil cooler with whatever kit you do order, a better radiator also helps. beyond that it is just gauges, and things like meth or e85 conversions. It seems so far that so long as you stay around or under the 550hp mark it will last a while engine wise until some random shiz like blown gasket happens(which also will happen bone stock randomly to unlucky people ask me how I know) Also take cosmo's opinions about gtm with a grain of salt since he apparently managed to be the only person on GTM's do not sell to list lol. |
Yes definitely be sure to listen to 1slow370 because he seems to think he knows anything here on the forum and often talks out of his @ss most of the time .lol Hey 1slow370 going to z days?
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So.... along with the SC New clutch Better diff bushings? oil cooler After-aftermarket radiator and exhaust Anything else? Also, how'd you manage to do that Cosmo? |
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If you want to be around 600+ HP, I wouldn't suggest a Supercharger. You would be better off with a Twin Turbo kit.
I lot of good comments on potential failures points with a higher horsepower 370Z. If all else, consult with the performance shops with experience who have seen the issues and solved them. In regards to GTM. They are one of the few elite engineered systems out there that work. I am satisfied with the quality of my supercharger kit assembled and engineered by GTM. Sam/George have always been there to answer my questiions and inquiries. Sometimes beyond what is neccesary. I had to wait 9+ months for my kit to arrive when it was in it's development stage and no, I was not happy, but the end result was worth it. Do GTM's kits have room for improvement? Yes, as with most FI kits out on the market. GTM will rebound and once again be one of top elite performance FI companies for Nissan performance. |
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You'll put your eye out kid. HO HO HO (You are going to blow the motor) So anyway, without building the motor I would not take it above 550whp. I stopped at 500 to be "safe": -Oil cooler is a must. The bigger the better. -I had massive traction issues (1 wheel peel etc) after the upgrade so I sprung for a Quaife diff and some meatier tires (275f/305r) and that solved most of the problem. OS Gaiken makes a better diff but they're noisy and require rebuild periodically. -Your exhaust is fine but if you want better numbers, you will need something more suited to FI (free flowing) -After 6 months, my stock clutch is still hanging in there but I can feel it starting to slip in 2nd on occasion so it's on the "probably needs to be replaced at some point" list. -Get rid of your cats if you can get away with it. |
Who will warranty/replace parts on the GTM kits if they go out of business? When a companies viability comes into question, it is often a downward spiral.
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Bahahahahahahaha!!!!!!!!!!!!!!!!!!
(GTM will rebound and once again be one of top elite performance FI companies for Nissan performance.) |
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Pull the trigger and see for yourself. Us that have much experience with gtm know the ropes and just trying to help out fellow members so due take it like a grain of salt.. lol
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If it takes 5+ months to deliver an established kit then there are serious problems. My guess is that it's a money issue on their part. If you pay upfront for a kit that money is most likely used for other reasons and you being told your kit is 'in the process of being built' is just plausible deniability to justify the delay in delivery. When contacting GTM about the status of your order the reply can range from the truth to outright lies and everything inbetween. At times Sam can be helpful and knowledgable, other times it's difficult to believe you're not having smoke blown up your azz. Generally build quality is pretty good but I'm sure that statement is debatible with a few members of this forum and several that are not. If GTM had kits on the shelf I would not hesitate to make a purchase. If there wasn't a problem with money I would think kits WOULD be on the shelf or at least with only a 2-3 week lead time which is acceptable for most people. GTM will eventually stop swirling the toilet bowl and either slowly ascend upwards or be flushed completely, only time will tell. I hope the best for them but don't think I would 'order' another kit until they get their act together. More on my situation later.
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So, going the TT route I'm looking @: Fast Intentions TT kit, headers, and HFC and somewhere in the 500-575whp range I'll keep looking into better clutches, and into Quaife. Thanks for the advice. |
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and no, do not go with gtm! save yourself the headache |
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