Plan B

Hello! Newbie here.

A good friend of mine is looking to get his XR8 up to speed. It’s an EB XR8 with some goodies he installed last year

*Trick Flow Heads. Ported & Assembled By Ben Gatt.(Super Flow Heads)
*Intake = GT40 (The better one, I believe)?
*Cam = SVO F303.
*Exhaust Duel 2.5" S/S with Pacemaker tri wires.
*T/C 2,400 rpm Dominator
*Diff Nodular Iron Detroit Locker with 3.89.

Well, he did all this and it ran a best time of 14.5 @ 97mph. It takes a week to get to the 60' marker and then it gets going. Oh well! It’s only a stock bottom end.

What is a good & strong “Stroked” rotating assembly for this engine? Budget priced, please. Any other budget tips would also be appreciated.

Thanks

Peter

Mr Sparkle

Welcome to the boards Peter! Good to see another migrant (or vacationer if you prefer) from the Dark Side :s6: (I'm ELXR8 on LS1.com, for reference sake!)

Not sure I can help you out with a strong and cheap bottom end freshen up.. I have yet to come across such a thing! :dead: There are plenty of great stroker buildups that can be done for less $$ if you can do a lot of the work yourself, or with help from mates in the know. Don't settle for a second rate crank, they are notorious for short lifespans and big $$$ in fixes.

Perhaps some of the already-stroked lads can step in here with some particular names / specs? :s6:

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Plan B

Thanks for that Mr Sparkle. :)

Lets just say 6 grand for the bits. Without machining & assembly costs.

Anyone?

Should he dump the cam? Intake?

Martin

For $6k he should be able to pick up a half decent 351W.....

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dragonV8

These the only mods?? What about larger t/b;maf;injectors to suit the mods done??

I'm no expert,however my enquiries led me to ask you these questions.
I'm sure if the right people read this they will confirm.

Jon

anakha

Plan B

Sound like your friend has a decent combo there but I'm not sure about the cam. A good custom job should see some more power found. Also what MAF, throttle body and injectors is he using? Please dont say stock!

As far as his times go the 97mph isn't bad but 14.5 sound a bit slow. What are his 60' times?

Also has the GT40 seen any porting in the lower? Hopefully it was at least port matched to the heads. The GT40 is a really good street intake. If he wants more mid range and top end an Edelbrock Performer would certainly be an improvement but best to know what the car's intended use is.

Tell your friend to get some sticky tyres and practice those launches. Anything over 2.0 in the 60' simply wont do!

XR8chic

Hi,

Is this your mate that is always with you at the drags??

What computer is he running? any chips? what size MAF, Throttle body, and injectors?

Has he thought about superchargers?





:s2: :s6:

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Plan B

Thanks guy's,

Indeed, the car does have a larger T/B and injuectors. Not sure of the size?

Custom programing was carried out at Chiptorque both in NSW & QLD. 202 rwkw.

As for practicing the launch? No issues there, it doesn't wheel spin.

The engine should all fall into place, once he gets some cubes, hence the question.

Jase_ELXR8

goto www.vpwmailorder.com you can get stroker kits the part number you want is vpw-347 which is $2495.95 thats with a steel crank, H-beam rods and everything else you need to rebuild.

ebxr8240

Ask at the front of the same building that Benny Gatt's bussness. They sell stroker kits for around $2500 Eagle or Scatt, Ross pistons etc .Tho T/W [Mahle] pistons have correct valve reliefes for Twisted Wedge.In my opinion I'd go for a 330 strocker less side load on piston with the short rod /angle etc. Oil usage I hear is an issue but machine work and assembly and CORRECT rings it's o.k The oil control rings go over gudgeon pin..Not so on 330..

I guess the 3:27 rear ratio won't help in 1/4 mile times pluss I think on E.B's they had a taller 1 st gear ratio...

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