Race Engine Forum UK

The car is finally up and running....

I have listed 2 comaprison engines, the standard gti6 (xu10j4rs) and my old puma racing engine.

The differences from puma engine (Puma 8v) to latest engine (Sandy 8v) are:

- Omega works forged pistons (83.5mm) and new liners completely rebuilt by des-developments
- Longmans +1mm Group A head, later flow enhanced by Mark Shilabeer
- Head and valve train rebuilt by Sandy Brown using Catcams double valve system and a Newmans ph4 cam (a lot of little jobs were done to optimise the head)
- KMS ECU replaced with DTA s40, now running 8 injectors
- Exhaust manifold replaced, previously using a nasty 4 branch from maniflow, now using longmans dyno tuned equal length header race version

edit: attached attachments, instead of links

Unless I've missed something, your graphs might need to be captioned Sean, show which is which ..

G

Guy Croft wrote:Unless I've missed something, your graphs might need to be captioned Sean, show which is which ..

G

Hi Guy, can you see the Legend on the right ?

The graphs are being cropped for me too Sean.

Can you resize the images? If not I'll gladly do it for you.

Seems they're cropped to 683x592 px.

I have uploaded attachments now folks

Seems to have sorted out that nasty "dip" at 6k

cantfindausername wrote:Seems to have sorted out that nasty "dip" at 6k

and gained 10-20 lb/ft for the entire rev range past 3k revs

Definately. I bet that is gonna make such a difference to how the car feels!!

Doh, silly me!

Sorry Sean, I didn't see the scroll bar!

Thanks,

G

Great result! Have you been out in it yet?

Ben

Well the car is back home with me now. :D

I went down to Cornwall yesterday on the train from Brighton, spent the day with Colin and Sandy (perfecting the map) and drove it back tonight.

I must say the car drives like a dream. The car has a seriously good powerband and I can drive around in 5th more than I ever have in the past. Driving the 230 miles tonight home, the engine felt very strong and didn't miss a beat.

This is it parked up for the night..will need a good wash/polish before going into the garage.
I'll get some pics and videos up this week, expect a lot of induction roar!

Sean

Looking good Sean! Glad you've got it back finally.

Looking forward to seeing/hearing the videos

Ant

It's all relatively quiet at the moment, been extremely busy at work.

The car is booked into Powerspeed in Kent on the 7th Jan for a new custom exhaust;probably with a repackable silencer and maybe straight out the middle of the rear. Then off to steve greenald's place for a slight remap. I'll also have a temporary front entry filter to test also, as we proved the current airbox does have some losses.

Also to make the new airbox and a few other items myself, Santa arrived early..



:D

Tig - good on you Sean!

It's great to share your progress here, a man should have a hobby! *

GC



* I need one, hobby I mean..

Powerspeed are sound. I used them for my Downpipe and wasteagate dumptube. Should be a nice bit of kit you get from them.

What projects do you have lined up for the tig?