Search found 945 matches

by 75evo
Wed Dec 02, 2020 8:22 am
Forum: Engine
Topic: Engine dyno vs chassis dyno
Replies: 3
Views: 129

Re: Engine dyno vs chassis dyno

MD you're back!!! Did you participate in the record breaking event involving lots of Santas and jet-skis?
by 75evo
Thu Nov 19, 2020 12:17 am
Forum: Suspension, Steering, Wheels, Tires
Topic: 27mm torsion bar adjustment question
Replies: 2
Views: 176

Re: 27mm torsion bar adjustment question

Thanks Makes sense. But only the a-arm is coming off, I don’t want to deal with splines on both ends. What a nightmare it was the last time.
by 75evo
Thu Nov 19, 2020 12:14 am
Forum: Engine
Topic: Engine dyno vs chassis dyno
Replies: 3
Views: 129

Engine dyno vs chassis dyno

The guy tests 2 cars on both the engine and chassis dyno

https://youtu.be/z2FdtRb94hw

Skip towards the end of the video. His math is a bit wonky, but it just proves that transmission losses aren’t a straight percentage.
by 75evo
Thu Nov 12, 2020 10:08 pm
Forum: Suspension, Steering, Wheels, Tires
Topic: 27mm torsion bar adjustment question
Replies: 2
Views: 176

27mm torsion bar adjustment question

Does anyone know for 27mm torsion bars, if I adjust it by 1 spline at the lower a-arm, how many mm it would go down by? Trying to avoid having to adjust both sides of the torsion bars. Too much work.

Thanks
by 75evo
Wed Sep 30, 2020 5:52 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

I was thinking port the intake and exhaust ports it to 3.0 port size, 3.0 valves, use low overlap high lift cams.The GTV6 with the 2.5 24V drift car in northern europe (forgot which country) is making tons of power 300-400 bhp. If the 2.5 with high boost can make 300 bhp, that would e great. I think...
by 75evo
Mon Sep 28, 2020 10:27 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

I was wrong. The 2.5 in the 75 has 9:1 CR. Rotrex is like a turbo, so no crazy torque at low rpms. The sprintex is a positive disp. twin scroll unit so lots of torque and heat.
by 75evo
Sat Sep 19, 2020 9:29 am
Forum: Other
Topic: South African GTV 3.0 - All info, parts and manuals
Replies: 9
Views: 667

Re: South African GTV 3.0 - All info, parts and manuals

Yeah FB is useless as a forum.
by 75evo
Fri Sep 18, 2020 10:39 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

How much power do you think a 2.5 12v with cams and a Rotrex running 1 bar of boost can put out? 300 bhp possible? Thinking of building a 2.5 12v since they are pretty cheap and already have low comp 9.5:1 pistons.
by 75evo
Sat Sep 12, 2020 10:43 pm
Forum: Introduce yourself - Gallery
Topic: Steve's 3.0 24v supercharged GTV
Replies: 38
Views: 14755

Re: Steve's 3.0 24v supercharged GTV

Duk, Is that Richard M's stuff? I think just the extended top ball joint should already help correct the geometry for a lowered car. Probably not the best solution but it's pretty safe and lower cost approach instead of a drop spindle or a modified upright to fit an upside down ball joint . MD also ...
by 75evo
Sat Aug 15, 2020 1:28 pm
Forum: Introduce yourself - Gallery
Topic: Steve's 3.0 24v supercharged GTV
Replies: 38
Views: 14755

Re: Steve's 3.0 24v supercharged GTV

Looks great! Glad to hear the ride quality and handling is good. I bought my first AVO coilovers back in 2000 from Demon Tweeks. I think the posting is still in the old forum. Better than the teeth shattering Bilsteins (which someone gave me for free). For my next set I will use Annex suspension. Th...
by 75evo
Thu Aug 13, 2020 5:59 am
Forum: Fuel, Electrical & ignition (stock Bosch)
Topic: Busso V6 3.2 24v Coil Pack
Replies: 23
Views: 8284

Re: Busso V6 3.2 24v Coil Pack

As per Beninca
by 75evo
Tue Jul 28, 2020 5:49 pm
Forum: Engine
Topic: Need s some advice on an Alfetta GTV 3.2 V6 24v conversion
Replies: 43
Views: 14141

Re: Need s some advice on an Alfetta GTV 3.2 V6 24v conversion

Does the ITB have a idle bypass screw or something? Otherwise you need to go with your method by leaving the throttle open a little. Do you have a vacuum balancer for adjusting vacuum at idle? That's what I saw my mechanic use when he tunes the 4-cam boxers 16vs since they all had ITBs.
by 75evo
Sat Jul 25, 2020 12:13 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

If this build used a 164 head it should work. I could be wrong, but if it has an early 75 3.0 V6 heads then some minor machining may be needed.
by 75evo
Fri Jul 24, 2020 12:20 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

Only issue with autronic is you need to run a home/cam sensor. I didn't check if this build had it. A few ways to do that for the 12V. You can use the distributor mount a bolt on the rear of the cam gear and the sensor on the head behind the cam gear.
by 75evo
Thu Jul 23, 2020 6:26 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 258
Views: 76489

Re: Building the supercharger to the engine (75 3.0V6)

You can check used Autronic SM4 units, less than 800 euro . In some cases with CDI as well. If a used one comes up I will let you know.