Stroker build for MP2300

[Stevieboy34]

Questions for the stroker gurus out there. I am happy with my car atm as its a daily driver and the maggie MP 2300 has enjoyed almost 100,000 healthy km's. I am wondering though when I retire the VE from daily driving in the next couple of years and make it a full time weekend/carshow/Powercruise/Summernats ute when the next step is?

I have searched the many stroker threads and can't find one in relation to the MP2300 blower. Can anyone explain my options as to what sized stoker (408/416 etc) and exactly whats involved. I assume I would also need a new fuel system? Whats involved in that and what are the costs?

Is my MP2300 even suitable for the "next level" type motor (I was hoping so).
I guess my aim would be to take it from daily driving best of both worlds 600RWHP car to stupidly cranky idle, crazy loud animal haha.

Some feedback would be much appreciated.

[dnos]

If you're going stroker then you're replacing the pistons so now is your chance to get some low comp forgies so you can up the boost on your MP2300. Get a forged crank as well. I would go the smallest bore to ensure there's plenty of meat on your block if you need to re-home.

You will definitely need a fuel system. Pump, maybe lines (not sure what size they are on a VE), possibly surge tank if you're going track work or some crazy tank slapping action in the skid pan :)

The cam question is a whole different conversation, depends entirely what you want. I would speak to VCM or your local blower guru for a suitable cam for your future setup.

[Stevieboy34]

If you're going stroker then you're replacing the pistons so now is your chance to get some low comp forgies so you can up the boost on your MP2300. Get a forged crank as well. I would go the smallest bore to ensure there's plenty of meat on your block if you need to re-home.

You will definitely need a fuel system. Pump, maybe lines (not sure what size they are on a VE), possibly surge tank if you're going track work or some crazy tank slapping action in the skid pan :)

The cam question is a whole different conversation, depends entirely what you want. I would speak to VCM or your local blower guru for a suitable cam for your future setup.

Smallest size, so is that like a 402? And do forged listens usually come with the kit?
From what I can see kits are around 3-4K, sound right?
What do I need to set aside fuel pump and injector cost wise?
I have a 2500 convertor already and box is built.
Cam? Something angry! Lol

[feistl]

I personally found my HTV2300 isnt really big enough on my 427ci....

You might end up spending a lot for not a huge gain.

Also, you cant put a angry sounding cam in as it'll bleed too much boost with big overlap. You might actually lose low-mid range power (which is the point of the supercharger).

[Stevieboy34]

Hmm quite the killjoy aren't you feistl hahahaha. Just jokes.

I did think 427 would be way too big for it. Wondering if 408 or 416 would be ok.

Just spitballing I guess as I tend to plan things long in advance.

[white lie]

What sort of power figure are you aiming for? If you just want it cranky then throw the right cam in it (but as said), you'll sound tough but probably go backwards in power. If you want something around the 1000rwhp mark a big Whipple might be better suited.

Somewhere in that 402-427 range is where I'd be looking. Depending on how fast you want to spin it. Are you going to use your block?

[Stevieboy34]

What sort of power figure are you aiming for? If you just want it cranky then throw the right cam in it (but as said), you'll sound tough but probably go backwards in power. If you want something around the 1000rwhp mark a big Whipple might be better suited.

Somewhere in that 402-427 range is where I'd be looking. Depending on how fast you want to spin it. Are you going to use your block?

Hmm I would assume I would use my block, yes. Power wise just big and angry...

[Stevieboy34]

Guys, not sure if you have heard this thing idle...
https://www.facebook.com/SlammedHsvsFpvs/videos/vb.378860062237409/938470129609730/?type=2&theatre

This is probably a dumb question, but could I have a cam as angry as this in mine? I cannot stop listening to this... SO GOOD!!!!

[Tre-Cool]

this is my 10yr old 402ci ls2 stroker with ls7 heads & a htv2300 that i put into my brothers VE ss M6. I'm changing the blower pulley to get some better belt wrap around the blower and to drop boost down & hopefully hold boost in the top end.

100kph is approx about 2700rpm through the manual. Dyno print out was from yesterday on some initial base runs with a max rpm of 6200. the engine has previously gone 680rwhp with e85 & vortech t-trim. I also fed the power in down low when ramping up.

http://torqueup.net/downloads/402-htv2300.jpg

[Xjas]

Guys, not sure if you have heard this thing idle...
https://www.facebook.com/SlammedHsvsFpvs/videos/vb.378860062237409/938470129609730/?type=2&theatre

This is probably a dumb question, but could I have a cam as angry as this in mine? I cannot stop listening to this... SO GOOD!!!!

That's sounds pretty damn cranky, wonder how much of that lope is the cam and how much is in the tune trying to make it sound more angry.

[Stevieboy34]

That's sounds pretty damn cranky, wonder how much of that lope is the cam and how much is in the tune trying to make it sound more angry.

Dude that's exactly what I am trying to find out. Someone shed some light!!!

[Xjas]

Theres a photo of it on MPW and MPW race fabs website but the only description says 408, whipple, powerglide, no mention of cam specs.

[offshore]

Just for info
Copied this from SQP Perth facebook page.

A few weeks ago we posted some photos of Faedy's second 402 rebuild/freshen. Time for an update...

We got it in the VF Ute this week fitting it up with his 2300 Maggy that we had on his 6L. now to recap the 402 build...it is a Callies crammed combo with JE pistons, SQ 60 PD blower cam topped with our SQP/MAST 4.0 cylinder head. We have spoken of this head before and seen the power it makes on Project VF and Dean Irvines 408 powered 8 second turboed beast.

Being that the head was designed to take advantage of the 4.0" bore and small exhaust port required to make the 6L engines accelerate HARD it was going to be interesting to see how it went with a decent amount of PD boost and 1 3/4 pipe. Many claim you need to have 2.0" primaries and the likes to make good top end power...yeah ok...shame it steals all the low midrange hey??

Onto the dyno and using BP Ultimate 98 pump petrol...and through the 6L80E auto...it just cracked 700rwhp! How does it drive? Like a missile! Smooth as glass and response to die for!

Might be a few more weeks before you get this one Faedy...it's too much fun!

[Stevieboy34]

Thanks for the update I have followed both of their pages. Pretty amazing 700RWHP from the MP2300 and the 402 stroker, I imagine the torque of that thing is just next level.

Re the clip of the car I put the link up for, my god that sounds tough.

[Stevieboy34]

Just bringing up an old thread of mine... id be interested if anyone else had some ideas on what I could do with my MP2300.

Anyone know someone that has used one on a stroker?

[feistl]

Hey mate,

Without trying to put you off you should be aware of some of the costs associated with building a stroker motor...

Most people look at the rotating assembly to get a general idea on price (and yes you can purchase a crank/rods/pistons/rings for around $3500-4000). However this is a rough break down of what extras you'll need done. This assumes you will be pulling the engine out and stripping it down/rebuilding it yourself...

Off the top of my head...

Machine Work to the block
Torque Hone the block to align the cylinders $500
Line hone the main caps (If using ARP bolts) $200
Fit new cam bearings $80
Possibly Balance the rotating assembly, depending what you buy

Short Block Parts
Main Bearings $100
Rod Bearings $90
Cam Bearings $90
Main Cap Bolts (Standard $170, ARP $350)
Rod Bolts (Might be included with kit, otherwise $50-120)
Rear Main Seal and Gasket $75
Front Timing Gasket $50
Front Main Seal $40
Timing Chain $250
LS2 Damper $50

Top End Parts
Camshaft $500
Water Pump Gasket $30
Lifters $250
Pushrods $100
Valve Springs, locks, retainers $300+
Head Gasket $120
Head Bolts (Standard $60, ARP $200)
Valve Seals $140 (Intake and Exhaust)

That is sort of the minimum you should be doing.

Plus you'll want to look at these other recommended upgrades at the same time
Rocker Trunion Upgrade $250
Fuel System ($200-1000+)
Injectors ($500+)
Gearbox (Stall, strengthening etc) $1000+
Trutrac Diff Centre and install $1000+

Now i dont know much about the MP2300, but most supercharger kits will need the following upgrades if your running a decent amount of boost...

Thermal Spacers between charger and heads $500
Upgraded I/C water pump $500-750
Upgraded Heat Exchanger $300+
New smaller pulley and belts $250+

So in summary..

If you just do the bare minimum to the engine and fuel system and do the majority of the work yourself you can probably get away with spending $7000-8000.

If you do some of the recommended upgrades and do the work yourself you'll probably be spending $10-11k.

If you are paying some else to do the list above expect to spend $13-14k

And if you paying someone to do all the work (including gearbox, diff, fuel system etc etc) it'll probably be $16-19k.

Finally, not sure what the rest of your car specs are but you'll want decent suspension, brakes and tyres to be able to actually use the power.

Just having been down this path i can assure you that the costs add up pretty quickly. To get 300-350rwkw is pretty cheap, 350rwkw-450rwkw starts getting expensive and anything above 450rwkw really adds up. Its all the supporting mods that you dont initially think about that catch you out.

Again, not trying to put you off but once you actually run the numbers you'll realise its a pretty expensive game.

Its also a question of what is the car currently worth (As is or returned to stock) and what else can you buy for the current cars valve, selling the modified parts and what you would be spending to upgrade. You might find its a better option to buy something either already modified or possibly a GTS with a LSA...

Just something to think about.

Cheers