MGB 4AG

kclm9803 · Post by **kclm9803** » Sat Aug 08, 2009 4:40 am

Toyota 4AG 16V swap into my 1970 MGB GT
Toyota T-50 5 speed trans.
Narrowed GTS disc brake rear axle 4.3 A 4.77 lsd 5 link comming soon
Dellorto 40 side drafts on HKS 8 port intake
Stainless turbo under mount header gets exhaust around steering (just)
GZE block 10.3 comp pistons
adjustable cam gears
212mm lightened fly wheel with ACT street comp plate and disc.
EDIS4 with MJL (of course)
Alum rad and custom alum core support.
Stainless cold air intake /silencer

Ignition is is concealed under the carbs and plug wires routed under cam valley plate.

Some mods include deleted side markers, back up lights and MG hood bulge.

idrivemyself · Post by **idrivemyself** » Sat Aug 08, 2009 9:36 am

Looks good!

How are you using the output to control the TVIS? IIRC, TVIS was built into the intake manifold...

kclm9803 · Post by **kclm9803** » Sat Aug 08, 2009 7:41 pm

The TVIS is a separate unit between the intake manifold and the head.The HKS manifold has 8 ports and matches the 30mm ports on the TVIS unit.
I use a user output inverted to on and set to 4,000 RPM (or whatever) to switch it off. Off opens the vac sol and the butterflies.
The TVIS control is low draw and needs no relay, it's always on until rpms reach the set range then opens up as it's switched off.
Throttle response in low revs is much better and flow seems to just fine in high revs.

DannyP · Post by **DannyP** » Thu Aug 13, 2009 12:26 am

Sweet! I love motor swaps, nicely done.

bre92ser · Post by **bre92ser** » Tue May 11, 2010 12:20 am

hey i know i know super old thread... im doing, well, basically the same thing...getting the motor put together on the stand right now. how did you do the oil pan? is it set way far back to clear the subframe, notched subframe, or a custom pan/pickup tube?

kclm9803 · Post by **kclm9803** » Tue May 11, 2010 1:29 am

Gotta cut the cross member, unless you want to lose the heater and or chop the firewall like the V8 guys do.
A piece of 3" angle 8" long, boxed and welded in and your good to go with the stock pan set up. Not the prettiest welding but it's out of sight.
Nice looking motor the EDIS is the best upgrade I made the MJ is great. Tweak cam timing without fiddling with ign.
Had to do the alt on the drivers side after trying and trying on the pass side (plumbing gets tough)

Drop me an email if need more info on the swap. When I did it I couldn't find any one that had done one.
It's working great but the 3.9 MG axle is too high, I'm building a narrowed GTS axle with 4.30 I might have to go to 4.56 but I'll try the 4.3 first.
I have an extra GTS drive line if you need one.
KC [email protected]

bre92ser · Post by **bre92ser** » Wed May 12, 2010 2:41 am

ahhh I see. I'll definitely let you know If I come across any other questions. thanks!

Oh and I got the driveline from the donor car, thanks for the offer though.