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BEE1VXR
Original Poster
213 posts
19 months
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The time has come to contact Monkfish and get booked in for a power upgrade. Heres the dilema. I always thought tvs2300 was the way to go but now i'm tempted to go for raw power. Just looking for the pros and cons of both options. I want power but dont want to give up on daily drivability. Opinions please.
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crisisjez
7,513 posts
75 months
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The TVS will give you far more raw power and daily driveability than anything else. (as well as better mpg) 
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lee st
4,449 posts
35 months
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If you want raw power and daily drivability get a Vxr8 
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richie slow
5,816 posts
34 months
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I have to agree with the TVS route.
If you'd like to build your car up slowly over time into a fast NA car you will end up spending far more money and be fortunate to have anywhere near the power of the TVS and none of the driveability.
Lots of people enjoy playing with headers, air intakes, itb's, heads etc. but that's just their hobby and if they wanted reliable power, and lots of it, then the blower wins every time (pound for pound).
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amvs
95 posts
96 months
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Can't personally vouch for the TVS2300, but I have a Harrop LS112 on my CV8 and it's mega - tons of low-down grunt and a noise that's to die for. I've had many tuned vehicles over the years, including a few turbocharged cars and a few large displacemnt NA's. This is by far the best
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ArnieVXR
1,057 posts
53 months
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By far the simplest route in the UK* to a very noticeable hike in power is a TVS2300. These are bolt-ons that have found there way onto loads of Monaros and VXR8s and the price is (relatively speaking) quite reasonable. They don't add much to the resale, but are worth a fair percentage of the new price when sold second hand. Keeping the old parts and swapping it back to standard is the best way to recoup your investment.
*Turbos and larger capacity engines are not something that happen very often over here, so tend to be custom jobs, which take much longer to build and set-up.
Cams, intakes, lower ratio diffs, heads and headers are all fine, but end up costing the same and don't produce the same 'numbers'. That said, a well set-up NA car will produce similar numbers on a hot day. And with a bit of focus on traction, you'll be out-running most cars on the forum (thinking of a certain silver Maloo).
If I started all over, I'd be buying a LSX454 crate unit and selling my old LS2 to bring the cost down to around £6K plus fitting. This provides a solid 580hp and the potential for much more, should the wallet allow.
More than around 600hp means that you'll need a better fuel system, drive-train, brakes, etc. And if it's a stock engine, forged internals too.
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BEE1VXR
Original Poster
213 posts
19 months
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I am again being pushed towards the s/charger route now...just read on another forum about the downside of NA that it might prove difficult for the mrs to drive due to lumpiness of cam...would it be worthwhile purchasing an ls7 clutch also...im looking for around 600bhp or as safely close to it as possible...
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well_fans
3,952 posts
94 months
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ls7 clutch a good idea, ideally done at same time to avoid 2 trips when your existing one gives up but to be honest with the contacts you have available I'd be tempted to fit the charger and clutch myself, not like you dont have access to garages and mechanics now is it?
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ArnieVXR
1,057 posts
53 months
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BEE1VXR said: ...the downside of NA that it might prove difficult for the mrs to drive due to lumpiness of cam... If the cam is that lumpy, it probably wouldn't pass an MOT.
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BEE1VXR
Original Poster
213 posts
19 months
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Yes thats true but i would still need to get it remapped which can't be done anywhere near here so was going to kill 2 birds with one stone...the clutch will be purchase only though as that would be silly with my dad owning a garage lol if my dad did fit the s/c is the car able to run down to mf to get it set up correctly...
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paul450
5,939 posts
45 months
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does the tvs kit not come with a base map ?
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BEE1VXR
Original Poster
213 posts
19 months
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Yes thats true but i would still need to get it remapped which can't be done anywhere near here so was going to kill 2 birds with one stone...the clutch will be purchase only though as that would be silly with my dad owning a garage lol if my dad did fit the s/c is the car able to run down to mf to get it set up correctly...
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MyM8V8
6,867 posts
65 months
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BEE1VXR said: if my dad did fit the s/c is the car able to run down to mf to get it set up correctly... Yes but carefully as not to go into boost. The TVS is a great and versatile weapon. The only thing that worries me about any air compressor is how to deal with the heat of compression produced. Unless this is adequately dealt with it means that WOT is limited to shortish bursts. Heat of compression manifests itself as high IAT's or inlet air temperature. For your requirements I would recommend a TVS 2300 at no more than 8 psi of boost and a MF1 camshaft to suit. The cam will help to lower temperatures and ease in the power. You will end up with something thats driveable for you to let fly with and for the Mrs to do the shopping in. You can buy the kit from MF, fit yourself and then take it there for mapping. I'm running a very tractable 580 ish whp, but have had it up to 599.9 RWHP and its' useable. NB, Before being flamed, my comments are directed at the TVS PD Blower, although the laws of physics remain the same for other types (which may manage IAT's better)
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ARAF
11,746 posts
93 months
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What are you really looking for? If your power goals are not too extreme, then how about the TVS 1900?
I believe that they are more driver friendly (I'm sure I'll be put right on that one) but won't give the bragging rights of the 2300.
As for getting down to Monkfish after fitting, can't you just leave the rear belt off?
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MyM8V8
6,867 posts
65 months
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ARAF said: What are you really looking for? If your power goals are not too extreme, then how about the TVS 1900?
I believe that they are more driver friendly (I'm sure I'll be put right on that one) but won't give the bragging rights of the 2300.
As for getting down to Monkfish after fitting, can't you just leave the rear belt off? Not much difference in price and you will need the 2.3 litres in a 2300 to fill a 6.0l motor.
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ARAF
11,746 posts
93 months
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MyM8V8 said: ARAF said: What are you really looking for? If your power goals are not too extreme, then how about the TVS 1900?
I believe that they are more driver friendly (I'm sure I'll be put right on that one) but won't give the bragging rights of the 2300.
As for getting down to Monkfish after fitting, can't you just leave the rear belt off? Not much difference in price and you will need the 2.3 litres in a 2300 to fill a 6.0l motor. Only at high revs? 
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BEE1VXR
Original Poster
213 posts
19 months
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I'm not looking to do the internals at this point though i want a safe level of power...i want to be able to put the boot down but not cook everything inside. I have CAI, headers, no cats and wortec rear so far. So whats this heat issue...never heard of that so far...please explain...
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Magic919
7,725 posts
71 months
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Get a bicycle pump and stick your finger over the outlet. Pump vigorously. Observe heat is generated.
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MyM8V8
6,867 posts
65 months
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BEE1VXR said: I'm not looking to do the internals at this point though i want a safe level of power...i want to be able to put the boot down but not cook everything inside. I have CAI, headers, no cats and wortec rear so far. So whats this heat issue...never heard of that so far...please explain... When you compress air you make heat. Heat is bad. Hotter inlet temps = more propensity for detonation. We don't want detonation. Some of the more extreme builds have shown scary IAT's. If you stick to sane parameters you will be OK. Like I said, 8 psi or there abouts, the rest of your spec' will enhance the build, definitely consider the cam to go with it as it does help temps'. Speak to the Fish, they'll go over everything with you.
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BEE1VXR
Original Poster
213 posts
19 months
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Ok cool...i will phone roger tomorrow and discuss the various options and hopefully find a set up i will be happy with...thanks again guys for your input and experience as always...
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